The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x d52b9b7e2f10d22a49468128540533e8d76910cd
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062028-nylon-scoff-dcd4@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From d52b9b7e2f10d22a49468128540533e8d76910cd Mon Sep 17 00:00:00 2001
From: Ming Qian <ming.qian(a)oss.nxp.com>
Date: Mon, 21 Apr 2025 15:06:12 +0800
Subject: [PATCH] media: imx-jpeg: Drop the first error frames
When an output buffer contains error frame header,
v4l2_jpeg_parse_header() will return error, then driver will mark this
buffer and a capture buffer done with error flag in device_run().
But if the error occurs in the first frames, before setup the capture
queue, there is no chance to schedule device_run(), and there may be no
capture to mark error.
So we need to drop this buffer with error flag, and make the decoding
can continue.
Fixes: 2db16c6ed72c ("media: imx-jpeg: Add V4L2 driver for i.MX8 JPEG Encoder/Decoder")
Cc: stable(a)vger.kernel.org
Signed-off-by: Ming Qian <ming.qian(a)oss.nxp.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne(a)collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne(a)collabora.com>
Signed-off-by: Hans Verkuil <hverkuil(a)xs4all.nl>
diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
index 1221b309a916..840dd62c2531 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
@@ -1918,9 +1918,19 @@ static void mxc_jpeg_buf_queue(struct vb2_buffer *vb)
jpeg_src_buf = vb2_to_mxc_buf(vb);
jpeg_src_buf->jpeg_parse_error = false;
ret = mxc_jpeg_parse(ctx, vb);
- if (ret)
+ if (ret) {
jpeg_src_buf->jpeg_parse_error = true;
+ /*
+ * if the capture queue is not setup, the device_run() won't be scheduled,
+ * need to drop the error buffer, so that the decoding can continue
+ */
+ if (!vb2_is_streaming(v4l2_m2m_get_dst_vq(ctx->fh.m2m_ctx))) {
+ v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
+ return;
+ }
+ }
+
end:
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
}
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x 3de572fe2189a4a0bd80295e1f478401e739498e
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062044-outlast-galley-2623@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 3de572fe2189a4a0bd80295e1f478401e739498e Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski(a)samsung.com>
Date: Wed, 7 May 2025 18:09:13 +0200
Subject: [PATCH] media: omap3isp: use sgtable-based scatterlist wrappers
Use common wrappers operating directly on the struct sg_table objects to
fix incorrect use of scatterlists sync calls. dma_sync_sg_for_*()
functions have to be called with the number of elements originally passed
to dma_map_sg_*() function, not the one returned in sgtable's nents.
Fixes: d33186d0be18 ("[media] omap3isp: ccdc: Use the DMA API for LSC")
Fixes: 0e24e90f2ca7 ("[media] omap3isp: stat: Use the DMA API")
CC: stable(a)vger.kernel.org
Signed-off-by: Marek Szyprowski <m.szyprowski(a)samsung.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil(a)xs4all.nl>
diff --git a/drivers/media/platform/ti/omap3isp/ispccdc.c b/drivers/media/platform/ti/omap3isp/ispccdc.c
index dd375c4e180d..7d0c723dcd11 100644
--- a/drivers/media/platform/ti/omap3isp/ispccdc.c
+++ b/drivers/media/platform/ti/omap3isp/ispccdc.c
@@ -446,8 +446,8 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
if (ret < 0)
goto done;
- dma_sync_sg_for_cpu(isp->dev, req->table.sgt.sgl,
- req->table.sgt.nents, DMA_TO_DEVICE);
+ dma_sync_sgtable_for_cpu(isp->dev, &req->table.sgt,
+ DMA_TO_DEVICE);
if (copy_from_user(req->table.addr, config->lsc,
req->config.size)) {
@@ -455,8 +455,8 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
goto done;
}
- dma_sync_sg_for_device(isp->dev, req->table.sgt.sgl,
- req->table.sgt.nents, DMA_TO_DEVICE);
+ dma_sync_sgtable_for_device(isp->dev, &req->table.sgt,
+ DMA_TO_DEVICE);
}
spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
diff --git a/drivers/media/platform/ti/omap3isp/ispstat.c b/drivers/media/platform/ti/omap3isp/ispstat.c
index 359a846205b0..d3da68408ecb 100644
--- a/drivers/media/platform/ti/omap3isp/ispstat.c
+++ b/drivers/media/platform/ti/omap3isp/ispstat.c
@@ -161,8 +161,7 @@ static void isp_stat_buf_sync_for_device(struct ispstat *stat,
if (ISP_STAT_USES_DMAENGINE(stat))
return;
- dma_sync_sg_for_device(stat->isp->dev, buf->sgt.sgl,
- buf->sgt.nents, DMA_FROM_DEVICE);
+ dma_sync_sgtable_for_device(stat->isp->dev, &buf->sgt, DMA_FROM_DEVICE);
}
static void isp_stat_buf_sync_for_cpu(struct ispstat *stat,
@@ -171,8 +170,7 @@ static void isp_stat_buf_sync_for_cpu(struct ispstat *stat,
if (ISP_STAT_USES_DMAENGINE(stat))
return;
- dma_sync_sg_for_cpu(stat->isp->dev, buf->sgt.sgl,
- buf->sgt.nents, DMA_FROM_DEVICE);
+ dma_sync_sgtable_for_cpu(stat->isp->dev, &buf->sgt, DMA_FROM_DEVICE);
}
static void isp_stat_buf_clear(struct ispstat *stat)
The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x 3de572fe2189a4a0bd80295e1f478401e739498e
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062043-unaltered-handwoven-3d41@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 3de572fe2189a4a0bd80295e1f478401e739498e Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski(a)samsung.com>
Date: Wed, 7 May 2025 18:09:13 +0200
Subject: [PATCH] media: omap3isp: use sgtable-based scatterlist wrappers
Use common wrappers operating directly on the struct sg_table objects to
fix incorrect use of scatterlists sync calls. dma_sync_sg_for_*()
functions have to be called with the number of elements originally passed
to dma_map_sg_*() function, not the one returned in sgtable's nents.
Fixes: d33186d0be18 ("[media] omap3isp: ccdc: Use the DMA API for LSC")
Fixes: 0e24e90f2ca7 ("[media] omap3isp: stat: Use the DMA API")
CC: stable(a)vger.kernel.org
Signed-off-by: Marek Szyprowski <m.szyprowski(a)samsung.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil(a)xs4all.nl>
diff --git a/drivers/media/platform/ti/omap3isp/ispccdc.c b/drivers/media/platform/ti/omap3isp/ispccdc.c
index dd375c4e180d..7d0c723dcd11 100644
--- a/drivers/media/platform/ti/omap3isp/ispccdc.c
+++ b/drivers/media/platform/ti/omap3isp/ispccdc.c
@@ -446,8 +446,8 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
if (ret < 0)
goto done;
- dma_sync_sg_for_cpu(isp->dev, req->table.sgt.sgl,
- req->table.sgt.nents, DMA_TO_DEVICE);
+ dma_sync_sgtable_for_cpu(isp->dev, &req->table.sgt,
+ DMA_TO_DEVICE);
if (copy_from_user(req->table.addr, config->lsc,
req->config.size)) {
@@ -455,8 +455,8 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
goto done;
}
- dma_sync_sg_for_device(isp->dev, req->table.sgt.sgl,
- req->table.sgt.nents, DMA_TO_DEVICE);
+ dma_sync_sgtable_for_device(isp->dev, &req->table.sgt,
+ DMA_TO_DEVICE);
}
spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
diff --git a/drivers/media/platform/ti/omap3isp/ispstat.c b/drivers/media/platform/ti/omap3isp/ispstat.c
index 359a846205b0..d3da68408ecb 100644
--- a/drivers/media/platform/ti/omap3isp/ispstat.c
+++ b/drivers/media/platform/ti/omap3isp/ispstat.c
@@ -161,8 +161,7 @@ static void isp_stat_buf_sync_for_device(struct ispstat *stat,
if (ISP_STAT_USES_DMAENGINE(stat))
return;
- dma_sync_sg_for_device(stat->isp->dev, buf->sgt.sgl,
- buf->sgt.nents, DMA_FROM_DEVICE);
+ dma_sync_sgtable_for_device(stat->isp->dev, &buf->sgt, DMA_FROM_DEVICE);
}
static void isp_stat_buf_sync_for_cpu(struct ispstat *stat,
@@ -171,8 +170,7 @@ static void isp_stat_buf_sync_for_cpu(struct ispstat *stat,
if (ISP_STAT_USES_DMAENGINE(stat))
return;
- dma_sync_sg_for_cpu(stat->isp->dev, buf->sgt.sgl,
- buf->sgt.nents, DMA_FROM_DEVICE);
+ dma_sync_sgtable_for_cpu(stat->isp->dev, &buf->sgt, DMA_FROM_DEVICE);
}
static void isp_stat_buf_clear(struct ispstat *stat)
The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 3de572fe2189a4a0bd80295e1f478401e739498e
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062043-penny-clanking-183f@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 3de572fe2189a4a0bd80295e1f478401e739498e Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski(a)samsung.com>
Date: Wed, 7 May 2025 18:09:13 +0200
Subject: [PATCH] media: omap3isp: use sgtable-based scatterlist wrappers
Use common wrappers operating directly on the struct sg_table objects to
fix incorrect use of scatterlists sync calls. dma_sync_sg_for_*()
functions have to be called with the number of elements originally passed
to dma_map_sg_*() function, not the one returned in sgtable's nents.
Fixes: d33186d0be18 ("[media] omap3isp: ccdc: Use the DMA API for LSC")
Fixes: 0e24e90f2ca7 ("[media] omap3isp: stat: Use the DMA API")
CC: stable(a)vger.kernel.org
Signed-off-by: Marek Szyprowski <m.szyprowski(a)samsung.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil(a)xs4all.nl>
diff --git a/drivers/media/platform/ti/omap3isp/ispccdc.c b/drivers/media/platform/ti/omap3isp/ispccdc.c
index dd375c4e180d..7d0c723dcd11 100644
--- a/drivers/media/platform/ti/omap3isp/ispccdc.c
+++ b/drivers/media/platform/ti/omap3isp/ispccdc.c
@@ -446,8 +446,8 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
if (ret < 0)
goto done;
- dma_sync_sg_for_cpu(isp->dev, req->table.sgt.sgl,
- req->table.sgt.nents, DMA_TO_DEVICE);
+ dma_sync_sgtable_for_cpu(isp->dev, &req->table.sgt,
+ DMA_TO_DEVICE);
if (copy_from_user(req->table.addr, config->lsc,
req->config.size)) {
@@ -455,8 +455,8 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
goto done;
}
- dma_sync_sg_for_device(isp->dev, req->table.sgt.sgl,
- req->table.sgt.nents, DMA_TO_DEVICE);
+ dma_sync_sgtable_for_device(isp->dev, &req->table.sgt,
+ DMA_TO_DEVICE);
}
spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
diff --git a/drivers/media/platform/ti/omap3isp/ispstat.c b/drivers/media/platform/ti/omap3isp/ispstat.c
index 359a846205b0..d3da68408ecb 100644
--- a/drivers/media/platform/ti/omap3isp/ispstat.c
+++ b/drivers/media/platform/ti/omap3isp/ispstat.c
@@ -161,8 +161,7 @@ static void isp_stat_buf_sync_for_device(struct ispstat *stat,
if (ISP_STAT_USES_DMAENGINE(stat))
return;
- dma_sync_sg_for_device(stat->isp->dev, buf->sgt.sgl,
- buf->sgt.nents, DMA_FROM_DEVICE);
+ dma_sync_sgtable_for_device(stat->isp->dev, &buf->sgt, DMA_FROM_DEVICE);
}
static void isp_stat_buf_sync_for_cpu(struct ispstat *stat,
@@ -171,8 +170,7 @@ static void isp_stat_buf_sync_for_cpu(struct ispstat *stat,
if (ISP_STAT_USES_DMAENGINE(stat))
return;
- dma_sync_sg_for_cpu(stat->isp->dev, buf->sgt.sgl,
- buf->sgt.nents, DMA_FROM_DEVICE);
+ dma_sync_sgtable_for_cpu(stat->isp->dev, &buf->sgt, DMA_FROM_DEVICE);
}
static void isp_stat_buf_clear(struct ispstat *stat)
The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 024bf40edf1155e7a587f0ec46294049777d9b02
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062033-navigator-observant-8f41@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 024bf40edf1155e7a587f0ec46294049777d9b02 Mon Sep 17 00:00:00 2001
From: Dmitry Nikiforov <Dm1tryNk(a)yandex.ru>
Date: Wed, 16 Apr 2025 23:51:19 +0300
Subject: [PATCH] media: davinci: vpif: Fix memory leak in probe error path
If an error occurs during the initialization of `pdev_display`,
the allocated platform device `pdev_capture` is not released properly,
leading to a memory leak.
Adjust error path handling to fix the leak.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 43acb728bbc4 ("media: davinci: vpif: fix use-after-free on driver unbind")
Cc: stable(a)vger.kernel.org
Signed-off-by: Dmitry Nikiforov <Dm1tryNk(a)yandex.ru>
Reviewed-by: Johan Hovold <johan(a)kernel.org>
Signed-off-by: Hans Verkuil <hverkuil(a)xs4all.nl>
diff --git a/drivers/media/platform/ti/davinci/vpif.c b/drivers/media/platform/ti/davinci/vpif.c
index a81719702a22..969d623fc842 100644
--- a/drivers/media/platform/ti/davinci/vpif.c
+++ b/drivers/media/platform/ti/davinci/vpif.c
@@ -504,7 +504,7 @@ static int vpif_probe(struct platform_device *pdev)
pdev_display = kzalloc(sizeof(*pdev_display), GFP_KERNEL);
if (!pdev_display) {
ret = -ENOMEM;
- goto err_put_pdev_capture;
+ goto err_del_pdev_capture;
}
pdev_display->name = "vpif_display";
@@ -527,6 +527,8 @@ static int vpif_probe(struct platform_device *pdev)
err_put_pdev_display:
platform_device_put(pdev_display);
+err_del_pdev_capture:
+ platform_device_del(pdev_capture);
err_put_pdev_capture:
platform_device_put(pdev_capture);
err_put_rpm:
The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x 73fb3b92da84637e3817580fa205d48065924e15
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062022-fleshed-wildcard-a434@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 73fb3b92da84637e3817580fa205d48065924e15 Mon Sep 17 00:00:00 2001
From: Edward Adam Davis <eadavis(a)qq.com>
Date: Sat, 5 Apr 2025 19:56:41 +0800
Subject: [PATCH] media: cxusb: no longer judge rbuf when the write fails
syzbot reported a uninit-value in cxusb_i2c_xfer. [1]
Only when the write operation of usb_bulk_msg() in dvb_usb_generic_rw()
succeeds and rlen is greater than 0, the read operation of usb_bulk_msg()
will be executed to read rlen bytes of data from the dvb device into the
rbuf.
In this case, although rlen is 1, the write operation failed which resulted
in the dvb read operation not being executed, and ultimately variable i was
not initialized.
[1]
BUG: KMSAN: uninit-value in cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline]
BUG: KMSAN: uninit-value in cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196
cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline]
cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196
__i2c_transfer+0xe25/0x3150 drivers/i2c/i2c-core-base.c:-1
i2c_transfer+0x317/0x4a0 drivers/i2c/i2c-core-base.c:2315
i2c_transfer_buffer_flags+0x125/0x1e0 drivers/i2c/i2c-core-base.c:2343
i2c_master_send include/linux/i2c.h:109 [inline]
i2cdev_write+0x210/0x280 drivers/i2c/i2c-dev.c:183
do_loop_readv_writev fs/read_write.c:848 [inline]
vfs_writev+0x963/0x14e0 fs/read_write.c:1057
do_writev+0x247/0x5c0 fs/read_write.c:1101
__do_sys_writev fs/read_write.c:1169 [inline]
__se_sys_writev fs/read_write.c:1166 [inline]
__x64_sys_writev+0x98/0xe0 fs/read_write.c:1166
x64_sys_call+0x2229/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:21
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Reported-by: syzbot+526bd95c0ec629993bf3(a)syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=526bd95c0ec629993bf3
Tested-by: syzbot+526bd95c0ec629993bf3(a)syzkaller.appspotmail.com
Fixes: 22c6d93a7310 ("[PATCH] dvb: usb: support Medion hybrid USB2.0 DVB-T/analogue box")
Cc: stable(a)vger.kernel.org
Signed-off-by: Edward Adam Davis <eadavis(a)qq.com>
Signed-off-by: Hans Verkuil <hverkuil(a)xs4all.nl>
diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c
index f44529b40989..d0501c1e81d6 100644
--- a/drivers/media/usb/dvb-usb/cxusb.c
+++ b/drivers/media/usb/dvb-usb/cxusb.c
@@ -119,9 +119,8 @@ static void cxusb_gpio_tuner(struct dvb_usb_device *d, int onoff)
o[0] = GPIO_TUNER;
o[1] = onoff;
- cxusb_ctrl_msg(d, CMD_GPIO_WRITE, o, 2, &i, 1);
- if (i != 0x01)
+ if (!cxusb_ctrl_msg(d, CMD_GPIO_WRITE, o, 2, &i, 1) && i != 0x01)
dev_info(&d->udev->dev, "gpio_write failed.\n");
st->gpio_write_state[GPIO_TUNER] = onoff;
The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x 960013ec5b5e86c2c096e79ce6e08bce970650b3
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062022-reattach-unroasted-deb0@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 960013ec5b5e86c2c096e79ce6e08bce970650b3 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan(a)kernel.org>
Date: Wed, 7 May 2025 21:47:45 +0100
Subject: [PATCH] net: qede: Initialize qede_ll_ops with designated initializer
After a recent change [1] in clang's randstruct implementation to
randomize structures that only contain function pointers, there is an
error because qede_ll_ops get randomized but does not use a designated
initializer for the first member:
drivers/net/ethernet/qlogic/qede/qede_main.c:206:2: error: a randomized struct can only be initialized with a designated initializer
206 | {
| ^
Explicitly initialize the common member using a designated initializer
to fix the build.
Cc: stable(a)vger.kernel.org
Fixes: 035f7f87b729 ("randstruct: Enable Clang support")
Link: https://github.com/llvm/llvm-project/commit/04364fb888eea6db9811510607bed4b… [1]
Signed-off-by: Nathan Chancellor <nathan(a)kernel.org>
Reviewed-by: Kees Cook <kees(a)kernel.org>
Link: https://lore.kernel.org/r/20250507-qede-fix-clang-randstruct-v1-1-5ccc15626…
Signed-off-by: Kees Cook <kees(a)kernel.org>
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 99df00c30b8c..b5d744d2586f 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -203,7 +203,7 @@ static struct pci_driver qede_pci_driver = {
};
static struct qed_eth_cb_ops qede_ll_ops = {
- {
+ .common = {
#ifdef CONFIG_RFS_ACCEL
.arfs_filter_op = qede_arfs_filter_op,
#endif
The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x 960013ec5b5e86c2c096e79ce6e08bce970650b3
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062022-unmanned-whinny-0ada@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 960013ec5b5e86c2c096e79ce6e08bce970650b3 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan(a)kernel.org>
Date: Wed, 7 May 2025 21:47:45 +0100
Subject: [PATCH] net: qede: Initialize qede_ll_ops with designated initializer
After a recent change [1] in clang's randstruct implementation to
randomize structures that only contain function pointers, there is an
error because qede_ll_ops get randomized but does not use a designated
initializer for the first member:
drivers/net/ethernet/qlogic/qede/qede_main.c:206:2: error: a randomized struct can only be initialized with a designated initializer
206 | {
| ^
Explicitly initialize the common member using a designated initializer
to fix the build.
Cc: stable(a)vger.kernel.org
Fixes: 035f7f87b729 ("randstruct: Enable Clang support")
Link: https://github.com/llvm/llvm-project/commit/04364fb888eea6db9811510607bed4b… [1]
Signed-off-by: Nathan Chancellor <nathan(a)kernel.org>
Reviewed-by: Kees Cook <kees(a)kernel.org>
Link: https://lore.kernel.org/r/20250507-qede-fix-clang-randstruct-v1-1-5ccc15626…
Signed-off-by: Kees Cook <kees(a)kernel.org>
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 99df00c30b8c..b5d744d2586f 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -203,7 +203,7 @@ static struct pci_driver qede_pci_driver = {
};
static struct qed_eth_cb_ops qede_ll_ops = {
- {
+ .common = {
#ifdef CONFIG_RFS_ACCEL
.arfs_filter_op = qede_arfs_filter_op,
#endif
The patch below does not apply to the 6.12-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.12.y
git checkout FETCH_HEAD
git cherry-pick -x 960013ec5b5e86c2c096e79ce6e08bce970650b3
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062021-jump-puppet-aa00@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 960013ec5b5e86c2c096e79ce6e08bce970650b3 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan(a)kernel.org>
Date: Wed, 7 May 2025 21:47:45 +0100
Subject: [PATCH] net: qede: Initialize qede_ll_ops with designated initializer
After a recent change [1] in clang's randstruct implementation to
randomize structures that only contain function pointers, there is an
error because qede_ll_ops get randomized but does not use a designated
initializer for the first member:
drivers/net/ethernet/qlogic/qede/qede_main.c:206:2: error: a randomized struct can only be initialized with a designated initializer
206 | {
| ^
Explicitly initialize the common member using a designated initializer
to fix the build.
Cc: stable(a)vger.kernel.org
Fixes: 035f7f87b729 ("randstruct: Enable Clang support")
Link: https://github.com/llvm/llvm-project/commit/04364fb888eea6db9811510607bed4b… [1]
Signed-off-by: Nathan Chancellor <nathan(a)kernel.org>
Reviewed-by: Kees Cook <kees(a)kernel.org>
Link: https://lore.kernel.org/r/20250507-qede-fix-clang-randstruct-v1-1-5ccc15626…
Signed-off-by: Kees Cook <kees(a)kernel.org>
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 99df00c30b8c..b5d744d2586f 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -203,7 +203,7 @@ static struct pci_driver qede_pci_driver = {
};
static struct qed_eth_cb_ops qede_ll_ops = {
- {
+ .common = {
#ifdef CONFIG_RFS_ACCEL
.arfs_filter_op = qede_arfs_filter_op,
#endif
The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x 6d037a372f817e9fcb56482f37917545596bd776
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062014-matriarch-atrocious-4abd@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 6d037a372f817e9fcb56482f37917545596bd776 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro(a)kernel.org>
Date: Fri, 21 Mar 2025 10:49:16 +0100
Subject: [PATCH] wifi: ath11k: fix ring-buffer corruption
Users of the Lenovo ThinkPad X13s have reported that Wi-Fi sometimes
breaks and the log fills up with errors like:
ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1484, expected 1492
ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1460, expected 1484
which based on a quick look at the driver seemed to indicate some kind
of ring-buffer corruption.
Miaoqing Pan tracked it down to the host seeing the updated destination
ring head pointer before the updated descriptor, and the error handling
for that in turn leaves the ring buffer in an inconsistent state.
Add the missing memory barrier to make sure that the descriptor is read
after the head pointer to address the root cause of the corruption while
fixing up the error handling in case there are ever any (ordering) bugs
on the device side.
Note that the READ_ONCE() are only needed to avoid compiler mischief in
case the ring-buffer helpers are ever inlined.
Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218623
Link: https://lore.kernel.org/20250310010217.3845141-3-quic_miaoqing@quicinc.com
Cc: Miaoqing Pan <quic_miaoqing(a)quicinc.com>
Cc: stable(a)vger.kernel.org # 5.6
Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org>
Reviewed-by: Miaoqing Pan <quic_miaoqing(a)quicinc.com>
Tested-by: Steev Klimaszewski <steev(a)kali.org>
Tested-by: Jens Glathe <jens.glathe(a)oldschoolsolutions.biz>
Tested-by: Clayton Craft <clayton(a)craftyguy.net>
Link: https://patch.msgid.link/20250321094916.19098-1-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson(a)oss.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath11k/ce.c b/drivers/net/wireless/ath/ath11k/ce.c
index e66e86bdec20..9d8efec46508 100644
--- a/drivers/net/wireless/ath/ath11k/ce.c
+++ b/drivers/net/wireless/ath/ath11k/ce.c
@@ -393,11 +393,10 @@ static int ath11k_ce_completed_recv_next(struct ath11k_ce_pipe *pipe,
goto err;
}
+ /* Make sure descriptor is read after the head pointer. */
+ dma_rmb();
+
*nbytes = ath11k_hal_ce_dst_status_get_length(desc);
- if (*nbytes == 0) {
- ret = -EIO;
- goto err;
- }
*skb = pipe->dest_ring->skb[sw_index];
pipe->dest_ring->skb[sw_index] = NULL;
@@ -430,8 +429,8 @@ static void ath11k_ce_recv_process_cb(struct ath11k_ce_pipe *pipe)
dma_unmap_single(ab->dev, ATH11K_SKB_RXCB(skb)->paddr,
max_nbytes, DMA_FROM_DEVICE);
- if (unlikely(max_nbytes < nbytes)) {
- ath11k_warn(ab, "rxed more than expected (nbytes %d, max %d)",
+ if (unlikely(max_nbytes < nbytes || nbytes == 0)) {
+ ath11k_warn(ab, "unexpected rx length (nbytes %d, max %d)",
nbytes, max_nbytes);
dev_kfree_skb_any(skb);
continue;
diff --git a/drivers/net/wireless/ath/ath11k/hal.c b/drivers/net/wireless/ath/ath11k/hal.c
index 61f4b6dd5380..8cb1505a5a0c 100644
--- a/drivers/net/wireless/ath/ath11k/hal.c
+++ b/drivers/net/wireless/ath/ath11k/hal.c
@@ -599,7 +599,7 @@ u32 ath11k_hal_ce_dst_status_get_length(void *buf)
struct hal_ce_srng_dst_status_desc *desc = buf;
u32 len;
- len = FIELD_GET(HAL_CE_DST_STATUS_DESC_FLAGS_LEN, desc->flags);
+ len = FIELD_GET(HAL_CE_DST_STATUS_DESC_FLAGS_LEN, READ_ONCE(desc->flags));
desc->flags &= ~HAL_CE_DST_STATUS_DESC_FLAGS_LEN;
return len;
@@ -829,7 +829,7 @@ void ath11k_hal_srng_access_begin(struct ath11k_base *ab, struct hal_srng *srng)
srng->u.src_ring.cached_tp =
*(volatile u32 *)srng->u.src_ring.tp_addr;
} else {
- srng->u.dst_ring.cached_hp = *srng->u.dst_ring.hp_addr;
+ srng->u.dst_ring.cached_hp = READ_ONCE(*srng->u.dst_ring.hp_addr);
/* Try to prefetch the next descriptor in the ring */
if (srng->flags & HAL_SRNG_FLAGS_CACHED)
The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x 6d037a372f817e9fcb56482f37917545596bd776
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062013-defender-designing-8c76@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 6d037a372f817e9fcb56482f37917545596bd776 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro(a)kernel.org>
Date: Fri, 21 Mar 2025 10:49:16 +0100
Subject: [PATCH] wifi: ath11k: fix ring-buffer corruption
Users of the Lenovo ThinkPad X13s have reported that Wi-Fi sometimes
breaks and the log fills up with errors like:
ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1484, expected 1492
ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1460, expected 1484
which based on a quick look at the driver seemed to indicate some kind
of ring-buffer corruption.
Miaoqing Pan tracked it down to the host seeing the updated destination
ring head pointer before the updated descriptor, and the error handling
for that in turn leaves the ring buffer in an inconsistent state.
Add the missing memory barrier to make sure that the descriptor is read
after the head pointer to address the root cause of the corruption while
fixing up the error handling in case there are ever any (ordering) bugs
on the device side.
Note that the READ_ONCE() are only needed to avoid compiler mischief in
case the ring-buffer helpers are ever inlined.
Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218623
Link: https://lore.kernel.org/20250310010217.3845141-3-quic_miaoqing@quicinc.com
Cc: Miaoqing Pan <quic_miaoqing(a)quicinc.com>
Cc: stable(a)vger.kernel.org # 5.6
Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org>
Reviewed-by: Miaoqing Pan <quic_miaoqing(a)quicinc.com>
Tested-by: Steev Klimaszewski <steev(a)kali.org>
Tested-by: Jens Glathe <jens.glathe(a)oldschoolsolutions.biz>
Tested-by: Clayton Craft <clayton(a)craftyguy.net>
Link: https://patch.msgid.link/20250321094916.19098-1-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson(a)oss.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath11k/ce.c b/drivers/net/wireless/ath/ath11k/ce.c
index e66e86bdec20..9d8efec46508 100644
--- a/drivers/net/wireless/ath/ath11k/ce.c
+++ b/drivers/net/wireless/ath/ath11k/ce.c
@@ -393,11 +393,10 @@ static int ath11k_ce_completed_recv_next(struct ath11k_ce_pipe *pipe,
goto err;
}
+ /* Make sure descriptor is read after the head pointer. */
+ dma_rmb();
+
*nbytes = ath11k_hal_ce_dst_status_get_length(desc);
- if (*nbytes == 0) {
- ret = -EIO;
- goto err;
- }
*skb = pipe->dest_ring->skb[sw_index];
pipe->dest_ring->skb[sw_index] = NULL;
@@ -430,8 +429,8 @@ static void ath11k_ce_recv_process_cb(struct ath11k_ce_pipe *pipe)
dma_unmap_single(ab->dev, ATH11K_SKB_RXCB(skb)->paddr,
max_nbytes, DMA_FROM_DEVICE);
- if (unlikely(max_nbytes < nbytes)) {
- ath11k_warn(ab, "rxed more than expected (nbytes %d, max %d)",
+ if (unlikely(max_nbytes < nbytes || nbytes == 0)) {
+ ath11k_warn(ab, "unexpected rx length (nbytes %d, max %d)",
nbytes, max_nbytes);
dev_kfree_skb_any(skb);
continue;
diff --git a/drivers/net/wireless/ath/ath11k/hal.c b/drivers/net/wireless/ath/ath11k/hal.c
index 61f4b6dd5380..8cb1505a5a0c 100644
--- a/drivers/net/wireless/ath/ath11k/hal.c
+++ b/drivers/net/wireless/ath/ath11k/hal.c
@@ -599,7 +599,7 @@ u32 ath11k_hal_ce_dst_status_get_length(void *buf)
struct hal_ce_srng_dst_status_desc *desc = buf;
u32 len;
- len = FIELD_GET(HAL_CE_DST_STATUS_DESC_FLAGS_LEN, desc->flags);
+ len = FIELD_GET(HAL_CE_DST_STATUS_DESC_FLAGS_LEN, READ_ONCE(desc->flags));
desc->flags &= ~HAL_CE_DST_STATUS_DESC_FLAGS_LEN;
return len;
@@ -829,7 +829,7 @@ void ath11k_hal_srng_access_begin(struct ath11k_base *ab, struct hal_srng *srng)
srng->u.src_ring.cached_tp =
*(volatile u32 *)srng->u.src_ring.tp_addr;
} else {
- srng->u.dst_ring.cached_hp = *srng->u.dst_ring.hp_addr;
+ srng->u.dst_ring.cached_hp = READ_ONCE(*srng->u.dst_ring.hp_addr);
/* Try to prefetch the next descriptor in the ring */
if (srng->flags & HAL_SRNG_FLAGS_CACHED)
The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y
git checkout FETCH_HEAD
git cherry-pick -x ab52e3e44fe9b666281752e2481d11e25b0e3fdd
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062045-defrost-explode-6eec@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From ab52e3e44fe9b666281752e2481d11e25b0e3fdd Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro(a)kernel.org>
Date: Fri, 21 Mar 2025 15:53:02 +0100
Subject: [PATCH] wifi: ath11k: fix rx completion meta data corruption
Add the missing memory barrier to make sure that the REO dest ring
descriptor is read after the head pointer to avoid using stale data on
weakly ordered architectures like aarch64.
This may fix the ring-buffer corruption worked around by commit
f9fff67d2d7c ("wifi: ath11k: Fix SKB corruption in REO destination
ring") by silently discarding data, and may possibly also address user
reported errors like:
ath11k_pci 0006:01:00.0: msdu_done bit in attention is not set
Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Cc: stable(a)vger.kernel.org # 5.6
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218005
Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org>
Tested-by: Clayton Craft <clayton(a)craftyguy.net>
Link: https://patch.msgid.link/20250321145302.4775-1-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson(a)oss.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 218ab41c0f3c..ea2959305dec 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -2637,7 +2637,7 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
struct ath11k *ar;
struct hal_reo_dest_ring *desc;
enum hal_reo_dest_ring_push_reason push_reason;
- u32 cookie;
+ u32 cookie, info0, rx_msdu_info0, rx_mpdu_info0;
int i;
for (i = 0; i < MAX_RADIOS; i++)
@@ -2650,11 +2650,14 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
try_again:
ath11k_hal_srng_access_begin(ab, srng);
+ /* Make sure descriptor is read after the head pointer. */
+ dma_rmb();
+
while (likely(desc =
(struct hal_reo_dest_ring *)ath11k_hal_srng_dst_get_next_entry(ab,
srng))) {
cookie = FIELD_GET(BUFFER_ADDR_INFO1_SW_COOKIE,
- desc->buf_addr_info.info1);
+ READ_ONCE(desc->buf_addr_info.info1));
buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID,
cookie);
mac_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_PDEV_ID, cookie);
@@ -2683,8 +2686,9 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
num_buffs_reaped[mac_id]++;
+ info0 = READ_ONCE(desc->info0);
push_reason = FIELD_GET(HAL_REO_DEST_RING_INFO0_PUSH_REASON,
- desc->info0);
+ info0);
if (unlikely(push_reason !=
HAL_REO_DEST_RING_PUSH_REASON_ROUTING_INSTRUCTION)) {
dev_kfree_skb_any(msdu);
@@ -2692,18 +2696,21 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
continue;
}
- rxcb->is_first_msdu = !!(desc->rx_msdu_info.info0 &
+ rx_msdu_info0 = READ_ONCE(desc->rx_msdu_info.info0);
+ rx_mpdu_info0 = READ_ONCE(desc->rx_mpdu_info.info0);
+
+ rxcb->is_first_msdu = !!(rx_msdu_info0 &
RX_MSDU_DESC_INFO0_FIRST_MSDU_IN_MPDU);
- rxcb->is_last_msdu = !!(desc->rx_msdu_info.info0 &
+ rxcb->is_last_msdu = !!(rx_msdu_info0 &
RX_MSDU_DESC_INFO0_LAST_MSDU_IN_MPDU);
- rxcb->is_continuation = !!(desc->rx_msdu_info.info0 &
+ rxcb->is_continuation = !!(rx_msdu_info0 &
RX_MSDU_DESC_INFO0_MSDU_CONTINUATION);
rxcb->peer_id = FIELD_GET(RX_MPDU_DESC_META_DATA_PEER_ID,
- desc->rx_mpdu_info.meta_data);
+ READ_ONCE(desc->rx_mpdu_info.meta_data));
rxcb->seq_no = FIELD_GET(RX_MPDU_DESC_INFO0_SEQ_NUM,
- desc->rx_mpdu_info.info0);
+ rx_mpdu_info0);
rxcb->tid = FIELD_GET(HAL_REO_DEST_RING_INFO0_RX_QUEUE_NUM,
- desc->info0);
+ info0);
rxcb->mac_id = mac_id;
__skb_queue_tail(&msdu_list[mac_id], msdu);
The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x ab52e3e44fe9b666281752e2481d11e25b0e3fdd
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062044-setback-catchable-ac30@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From ab52e3e44fe9b666281752e2481d11e25b0e3fdd Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro(a)kernel.org>
Date: Fri, 21 Mar 2025 15:53:02 +0100
Subject: [PATCH] wifi: ath11k: fix rx completion meta data corruption
Add the missing memory barrier to make sure that the REO dest ring
descriptor is read after the head pointer to avoid using stale data on
weakly ordered architectures like aarch64.
This may fix the ring-buffer corruption worked around by commit
f9fff67d2d7c ("wifi: ath11k: Fix SKB corruption in REO destination
ring") by silently discarding data, and may possibly also address user
reported errors like:
ath11k_pci 0006:01:00.0: msdu_done bit in attention is not set
Tested-on: WCN6855 hw2.1 WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.41
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Cc: stable(a)vger.kernel.org # 5.6
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218005
Signed-off-by: Johan Hovold <johan+linaro(a)kernel.org>
Tested-by: Clayton Craft <clayton(a)craftyguy.net>
Link: https://patch.msgid.link/20250321145302.4775-1-johan+linaro@kernel.org
Signed-off-by: Jeff Johnson <jeff.johnson(a)oss.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 218ab41c0f3c..ea2959305dec 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -2637,7 +2637,7 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
struct ath11k *ar;
struct hal_reo_dest_ring *desc;
enum hal_reo_dest_ring_push_reason push_reason;
- u32 cookie;
+ u32 cookie, info0, rx_msdu_info0, rx_mpdu_info0;
int i;
for (i = 0; i < MAX_RADIOS; i++)
@@ -2650,11 +2650,14 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
try_again:
ath11k_hal_srng_access_begin(ab, srng);
+ /* Make sure descriptor is read after the head pointer. */
+ dma_rmb();
+
while (likely(desc =
(struct hal_reo_dest_ring *)ath11k_hal_srng_dst_get_next_entry(ab,
srng))) {
cookie = FIELD_GET(BUFFER_ADDR_INFO1_SW_COOKIE,
- desc->buf_addr_info.info1);
+ READ_ONCE(desc->buf_addr_info.info1));
buf_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_BUF_ID,
cookie);
mac_id = FIELD_GET(DP_RXDMA_BUF_COOKIE_PDEV_ID, cookie);
@@ -2683,8 +2686,9 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
num_buffs_reaped[mac_id]++;
+ info0 = READ_ONCE(desc->info0);
push_reason = FIELD_GET(HAL_REO_DEST_RING_INFO0_PUSH_REASON,
- desc->info0);
+ info0);
if (unlikely(push_reason !=
HAL_REO_DEST_RING_PUSH_REASON_ROUTING_INSTRUCTION)) {
dev_kfree_skb_any(msdu);
@@ -2692,18 +2696,21 @@ int ath11k_dp_process_rx(struct ath11k_base *ab, int ring_id,
continue;
}
- rxcb->is_first_msdu = !!(desc->rx_msdu_info.info0 &
+ rx_msdu_info0 = READ_ONCE(desc->rx_msdu_info.info0);
+ rx_mpdu_info0 = READ_ONCE(desc->rx_mpdu_info.info0);
+
+ rxcb->is_first_msdu = !!(rx_msdu_info0 &
RX_MSDU_DESC_INFO0_FIRST_MSDU_IN_MPDU);
- rxcb->is_last_msdu = !!(desc->rx_msdu_info.info0 &
+ rxcb->is_last_msdu = !!(rx_msdu_info0 &
RX_MSDU_DESC_INFO0_LAST_MSDU_IN_MPDU);
- rxcb->is_continuation = !!(desc->rx_msdu_info.info0 &
+ rxcb->is_continuation = !!(rx_msdu_info0 &
RX_MSDU_DESC_INFO0_MSDU_CONTINUATION);
rxcb->peer_id = FIELD_GET(RX_MPDU_DESC_META_DATA_PEER_ID,
- desc->rx_mpdu_info.meta_data);
+ READ_ONCE(desc->rx_mpdu_info.meta_data));
rxcb->seq_no = FIELD_GET(RX_MPDU_DESC_INFO0_SEQ_NUM,
- desc->rx_mpdu_info.info0);
+ rx_mpdu_info0);
rxcb->tid = FIELD_GET(HAL_REO_DEST_RING_INFO0_RX_QUEUE_NUM,
- desc->info0);
+ info0);
rxcb->mac_id = mac_id;
__skb_queue_tail(&msdu_list[mac_id], msdu);
During appletb_kbd_probe, probe attempts to get the backlight device
by name. When this happens backlight_device_get_by_name looks for a
device in the backlight class which has name "appletb_backlight" and
upon finding a match it increments the reference count for the device
and returns it to the caller. However this reference is never released
leading to a reference leak.
Fix this by decrementing the backlight device reference count on removal
via put_device and on probe failure.
Fixes: 93a0fc489481 ("HID: hid-appletb-kbd: add support for automatic brightness control while using the touchbar")
Cc: stable(a)vger.kernel.org
Signed-off-by: Qasim Ijaz <qasdev00(a)gmail.com>
---
drivers/hid/hid-appletb-kbd.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/hid/hid-appletb-kbd.c b/drivers/hid/hid-appletb-kbd.c
index ef51b2c06872..e06567886e50 100644
--- a/drivers/hid/hid-appletb-kbd.c
+++ b/drivers/hid/hid-appletb-kbd.c
@@ -438,6 +438,8 @@ static int appletb_kbd_probe(struct hid_device *hdev, const struct hid_device_id
return 0;
close_hw:
+ if (kbd->backlight_dev)
+ put_device(&kbd->backlight_dev->dev);
hid_hw_close(hdev);
stop_hw:
hid_hw_stop(hdev);
@@ -453,6 +455,9 @@ static void appletb_kbd_remove(struct hid_device *hdev)
input_unregister_handler(&kbd->inp_handler);
timer_delete_sync(&kbd->inactivity_timer);
+ if (kbd->backlight_dev)
+ put_device(&kbd->backlight_dev->dev);
+
hid_hw_close(hdev);
hid_hw_stop(hdev);
}
--
2.39.5
The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x 2c4e8b228733bfbcaf49408fdf94d220f6eb78fc
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062004-setting-ruined-8212@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 2c4e8b228733bfbcaf49408fdf94d220f6eb78fc Mon Sep 17 00:00:00 2001
From: Giovanni Cabiddu <giovanni.cabiddu(a)intel.com>
Date: Wed, 26 Mar 2025 15:59:49 +0000
Subject: [PATCH] crypto: qat - add shutdown handler to qat_dh895xcc
During a warm reset via kexec, the system bypasses the driver removal
sequence, meaning that the remove() callback is not invoked.
If a QAT device is not shutdown properly, the device driver will fail to
load in a newly rebooted kernel.
This might result in output like the following after the kexec reboot:
QAT: AE0 is inactive!!
QAT: failed to get device out of reset
dh895xcc 0000:3f:00.0: qat_hal_clr_reset error
dh895xcc 0000:3f:00.0: Failed to init the AEs
dh895xcc 0000:3f:00.0: Failed to initialise Acceleration Engine
dh895xcc 0000:3f:00.0: Resetting device qat_dev0
dh895xcc 0000:3f:00.0: probe with driver dh895xcc failed with error -14
Implement the shutdown() handler that hooks into the reboot notifier
list. This brings down the QAT device and ensures it is shut down
properly.
Cc: <stable(a)vger.kernel.org>
Fixes: 7afa232e76ce ("crypto: qat - Intel(R) QAT DH895xcc accelerator")
Reviewed-by: Ahsan Atta <ahsan.atta(a)intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu(a)intel.com>
Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au>
diff --git a/drivers/crypto/intel/qat/qat_dh895xcc/adf_drv.c b/drivers/crypto/intel/qat/qat_dh895xcc/adf_drv.c
index 730147404ceb..b59e0cc49e52 100644
--- a/drivers/crypto/intel/qat/qat_dh895xcc/adf_drv.c
+++ b/drivers/crypto/intel/qat/qat_dh895xcc/adf_drv.c
@@ -209,6 +209,13 @@ static void adf_remove(struct pci_dev *pdev)
kfree(accel_dev);
}
+static void adf_shutdown(struct pci_dev *pdev)
+{
+ struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev);
+
+ adf_dev_down(accel_dev);
+}
+
static const struct pci_device_id adf_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_QAT_DH895XCC) },
{ }
@@ -220,6 +227,7 @@ static struct pci_driver adf_driver = {
.name = ADF_DH895XCC_DEVICE_NAME,
.probe = adf_probe,
.remove = adf_remove,
+ .shutdown = adf_shutdown,
.sriov_configure = adf_sriov_configure,
.err_handler = &adf_err_handler,
};
The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x a9a6e9279b2998e2610c70b0dfc80a234f97c76c
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062054-antiques-mangy-118b@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From a9a6e9279b2998e2610c70b0dfc80a234f97c76c Mon Sep 17 00:00:00 2001
From: Giovanni Cabiddu <giovanni.cabiddu(a)intel.com>
Date: Wed, 26 Mar 2025 15:59:51 +0000
Subject: [PATCH] crypto: qat - add shutdown handler to qat_c62x
During a warm reset via kexec, the system bypasses the driver removal
sequence, meaning that the remove() callback is not invoked.
If a QAT device is not shutdown properly, the device driver will fail to
load in a newly rebooted kernel.
This might result in output like the following after the kexec reboot:
QAT: AE0 is inactive!!
QAT: failed to get device out of reset
c6xx 0000:3f:00.0: qat_hal_clr_reset error
c6xx 0000:3f:00.0: Failed to init the AEs
c6xx 0000:3f:00.0: Failed to initialise Acceleration Engine
c6xx 0000:3f:00.0: Resetting device qat_dev0
c6xx 0000:3f:00.0: probe with driver c6xx failed with error -14
Implement the shutdown() handler that hooks into the reboot notifier
list. This brings down the QAT device and ensures it is shut down
properly.
Cc: <stable(a)vger.kernel.org>
Fixes: a6dabee6c8ba ("crypto: qat - add support for c62x accel type")
Reviewed-by: Ahsan Atta <ahsan.atta(a)intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu(a)intel.com>
Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au>
diff --git a/drivers/crypto/intel/qat/qat_c62x/adf_drv.c b/drivers/crypto/intel/qat/qat_c62x/adf_drv.c
index 0bac717e88d9..23ccb72b6ea2 100644
--- a/drivers/crypto/intel/qat/qat_c62x/adf_drv.c
+++ b/drivers/crypto/intel/qat/qat_c62x/adf_drv.c
@@ -209,6 +209,13 @@ static void adf_remove(struct pci_dev *pdev)
kfree(accel_dev);
}
+static void adf_shutdown(struct pci_dev *pdev)
+{
+ struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev);
+
+ adf_dev_down(accel_dev);
+}
+
static const struct pci_device_id adf_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_QAT_C62X) },
{ }
@@ -220,6 +227,7 @@ static struct pci_driver adf_driver = {
.name = ADF_C62X_DEVICE_NAME,
.probe = adf_probe,
.remove = adf_remove,
+ .shutdown = adf_shutdown,
.sriov_configure = adf_sriov_configure,
.err_handler = &adf_err_handler,
};
The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x 845bc952024dbf482c7434daeac66f764642d52d
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062041-tarnish-puma-e164@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 845bc952024dbf482c7434daeac66f764642d52d Mon Sep 17 00:00:00 2001
From: Giovanni Cabiddu <giovanni.cabiddu(a)intel.com>
Date: Wed, 26 Mar 2025 15:59:46 +0000
Subject: [PATCH] crypto: qat - add shutdown handler to qat_4xxx
During a warm reset via kexec, the system bypasses the driver removal
sequence, meaning that the remove() callback is not invoked.
If a QAT device is not shutdown properly, the device driver will fail to
load in a newly rebooted kernel.
This might result in output like the following after the kexec reboot:
4xxx 0000:01:00.0: Failed to power up the device
4xxx 0000:01:00.0: Failed to initialize device
4xxx 0000:01:00.0: Resetting device qat_dev0
4xxx 0000:01:00.0: probe with driver 4xxx failed with error -14
Implement the shutdown() handler that hooks into the reboot notifier
list. This brings down the QAT device and ensures it is shut down
properly.
Cc: <stable(a)vger.kernel.org>
Fixes: 8c8268166e83 ("crypto: qat - add qat_4xxx driver")
Link: https://lore.kernel.org/all/Z-DGQrhRj9niR9iZ@gondor.apana.org.au/
Reported-by: Randy Wright <rwright(a)hpe.com>
Closes: https://issues.redhat.com/browse/RHEL-84366
Reviewed-by: Ahsan Atta <ahsan.atta(a)intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu(a)intel.com>
Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au>
diff --git a/drivers/crypto/intel/qat/qat_4xxx/adf_drv.c b/drivers/crypto/intel/qat/qat_4xxx/adf_drv.c
index 5537a9991e4e..1ac415ef3c31 100644
--- a/drivers/crypto/intel/qat/qat_4xxx/adf_drv.c
+++ b/drivers/crypto/intel/qat/qat_4xxx/adf_drv.c
@@ -188,11 +188,19 @@ static void adf_remove(struct pci_dev *pdev)
adf_cleanup_accel(accel_dev);
}
+static void adf_shutdown(struct pci_dev *pdev)
+{
+ struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev);
+
+ adf_dev_down(accel_dev);
+}
+
static struct pci_driver adf_driver = {
.id_table = adf_pci_tbl,
.name = ADF_4XXX_DEVICE_NAME,
.probe = adf_probe,
.remove = adf_remove,
+ .shutdown = adf_shutdown,
.sriov_configure = adf_sriov_configure,
.err_handler = &adf_err_handler,
};
The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable(a)vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x 71e0cc1eab584d6f95526a5e8c69ec666ca33e1b
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062029-banister-throng-eb24@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 71e0cc1eab584d6f95526a5e8c69ec666ca33e1b Mon Sep 17 00:00:00 2001
From: Giovanni Cabiddu <giovanni.cabiddu(a)intel.com>
Date: Wed, 26 Mar 2025 15:59:53 +0000
Subject: [PATCH] crypto: qat - add shutdown handler to qat_c3xxx
During a warm reset via kexec, the system bypasses the driver removal
sequence, meaning that the remove() callback is not invoked.
If a QAT device is not shutdown properly, the device driver will fail to
load in a newly rebooted kernel.
This might result in output like the following after the kexec reboot:
QAT: AE0 is inactive!!
QAT: failed to get device out of reset
c3xxx 0000:3f:00.0: qat_hal_clr_reset error
c3xxx 0000:3f:00.0: Failed to init the AEs
c3xxx 0000:3f:00.0: Failed to initialise Acceleration Engine
c3xxx 0000:3f:00.0: Resetting device qat_dev0
c3xxx 0000:3f:00.0: probe with driver c3xxx failed with error -14
Implement the shutdown() handler that hooks into the reboot notifier
list. This brings down the QAT device and ensures it is shut down
properly.
Cc: <stable(a)vger.kernel.org>
Fixes: 890c55f4dc0e ("crypto: qat - add support for c3xxx accel type")
Reviewed-by: Ahsan Atta <ahsan.atta(a)intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu(a)intel.com>
Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au>
diff --git a/drivers/crypto/intel/qat/qat_c3xxx/adf_drv.c b/drivers/crypto/intel/qat/qat_c3xxx/adf_drv.c
index 260f34d0d541..bceb5dd8b148 100644
--- a/drivers/crypto/intel/qat/qat_c3xxx/adf_drv.c
+++ b/drivers/crypto/intel/qat/qat_c3xxx/adf_drv.c
@@ -209,6 +209,13 @@ static void adf_remove(struct pci_dev *pdev)
kfree(accel_dev);
}
+static void adf_shutdown(struct pci_dev *pdev)
+{
+ struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev);
+
+ adf_dev_down(accel_dev);
+}
+
static const struct pci_device_id adf_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_QAT_C3XXX) },
{ }
@@ -220,6 +227,7 @@ static struct pci_driver adf_driver = {
.name = ADF_C3XXX_DEVICE_NAME,
.probe = adf_probe,
.remove = adf_remove,
+ .shutdown = adf_shutdown,
.sriov_configure = adf_sriov_configure,
.err_handler = &adf_err_handler,
};