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[Linux-stable-mirror] Patch "gpio: iop: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled gpio: iop: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: gpio-iop-add-missing-module_description-author-license.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 97b03136e1b637d7a9d2274c099e44ecf23f1103 Mon Sep 17 00:00:00 2001 From: Jesse Chan <jc(a)linux.com> Date: Mon, 20 Nov 2017 12:54:52 -0800 Subject: gpio: iop: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE From: Jesse Chan <jc(a)linux.com> commit 97b03136e1b637d7a9d2274c099e44ecf23f1103 upstream. This change resolves a new compile-time warning when built as a loadable module: WARNING: modpost: missing MODULE_LICENSE() in drivers/gpio/gpio-iop.o see include/linux/module.h for more information This adds the license as "GPL", which matches the header of the file. MODULE_DESCRIPTION and MODULE_AUTHOR are also added. Signed-off-by: Jesse Chan <jc(a)linux.com> Signed-off-by: Linus Walleij <linus.walleij(a)linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/gpio/gpio-iop.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/gpio/gpio-iop.c +++ b/drivers/gpio/gpio-iop.c @@ -58,3 +58,7 @@ static int __init iop3xx_gpio_init(void) return platform_driver_register(&iop3xx_gpio_driver); } arch_initcall(iop3xx_gpio_init); + +MODULE_DESCRIPTION("GPIO handling for Intel IOP3xx processors"); +MODULE_AUTHOR("Lennert Buytenhek <buytenh(a)wantstofly.org>"); +MODULE_LICENSE("GPL"); Patches currently in stable-queue which might be from jc(a)linux.com are queue-4.9/gpio-iop-add-missing-module_description-author-license.patch queue-4.9/power-reset-zx-reboot-add-missing-module_description-author-license.patch queue-4.9/gpio-ath79-add-missing-module_description-license.patch queue-4.9/mtd-nand-denali_pci-add-missing-module_description-author-license.patch

7 years, 5 months

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[Linux-stable-mirror] Patch "gpio: ath79: add missing MODULE_DESCRIPTION/LICENSE" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled gpio: ath79: add missing MODULE_DESCRIPTION/LICENSE to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: gpio-ath79-add-missing-module_description-license.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 539340f37e6d6ed4cd93e8e18c9b2e4eafd4b842 Mon Sep 17 00:00:00 2001 From: Jesse Chan <jc(a)linux.com> Date: Mon, 20 Nov 2017 12:54:26 -0800 Subject: gpio: ath79: add missing MODULE_DESCRIPTION/LICENSE From: Jesse Chan <jc(a)linux.com> commit 539340f37e6d6ed4cd93e8e18c9b2e4eafd4b842 upstream. This change resolves a new compile-time warning when built as a loadable module: WARNING: modpost: missing MODULE_LICENSE() in drivers/gpio/gpio-ath79.o see include/linux/module.h for more information This adds the license as "GPL v2", which matches the header of the file. MODULE_DESCRIPTION is also added. Signed-off-by: Jesse Chan <jc(a)linux.com> Acked-by: Alban Bedel <albeu(a)free.fr> Signed-off-by: Linus Walleij <linus.walleij(a)linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/gpio/gpio-ath79.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/gpio/gpio-ath79.c +++ b/drivers/gpio/gpio-ath79.c @@ -323,3 +323,6 @@ static struct platform_driver ath79_gpio }; module_platform_driver(ath79_gpio_driver); + +MODULE_DESCRIPTION("Atheros AR71XX/AR724X/AR913X GPIO API support"); +MODULE_LICENSE("GPL v2"); Patches currently in stable-queue which might be from jc(a)linux.com are queue-4.9/gpio-iop-add-missing-module_description-author-license.patch queue-4.9/power-reset-zx-reboot-add-missing-module_description-author-license.patch queue-4.9/gpio-ath79-add-missing-module_description-license.patch queue-4.9/mtd-nand-denali_pci-add-missing-module_description-author-license.patch

7 years, 5 months

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[Linux-stable-mirror] Patch "gpio: Fix kernel stack leak to userspace" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled gpio: Fix kernel stack leak to userspace to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: gpio-fix-kernel-stack-leak-to-userspace.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 24bd3efc9d1efb5f756a7c6f807a36ddb6adc671 Mon Sep 17 00:00:00 2001 From: Linus Walleij <linus.walleij(a)linaro.org> Date: Mon, 22 Jan 2018 13:19:28 +0100 Subject: gpio: Fix kernel stack leak to userspace From: Linus Walleij <linus.walleij(a)linaro.org> commit 24bd3efc9d1efb5f756a7c6f807a36ddb6adc671 upstream. The GPIO event descriptor was leaking kernel stack to userspace because we don't zero the variable before use. Ooops. Fix this. Reported-by: Arnd Bergmann <arnd(a)arndb.de> Reviewed-by: Bartosz Golaszewski <brgl(a)bgdev.pl> Reviewed-by: Arnd Bergmann <arnd(a)arndb.de> Signed-off-by: Linus Walleij <linus.walleij(a)linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/gpio/gpiolib.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -705,6 +705,9 @@ static irqreturn_t lineevent_irq_thread( struct gpioevent_data ge; int ret, level; + /* Do not leak kernel stack to userspace */ + memset(&ge, 0, sizeof(ge)); + ge.timestamp = ktime_get_real_ns(); level = gpiod_get_value_cansleep(le->desc); Patches currently in stable-queue which might be from linus.walleij(a)linaro.org are queue-4.9/gpio-iop-add-missing-module_description-author-license.patch queue-4.9/tools-gpio-fix-build-error-with-musl-libc.patch queue-4.9/gpio-fix-kernel-stack-leak-to-userspace.patch queue-4.9/gpio-ath79-add-missing-module_description-license.patch queue-4.9/gpio-stmpe-i2c-transfer-are-forbiden-in-atomic-context.patch

7 years, 5 months

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[Linux-stable-mirror] Patch "crypto: af_alg - whitelist mask and type" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled crypto: af_alg - whitelist mask and type to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: crypto-af_alg-whitelist-mask-and-type.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From bb30b8848c85e18ca7e371d0a869e94b3e383bdf Mon Sep 17 00:00:00 2001 From: Stephan Mueller <smueller(a)chronox.de> Date: Tue, 2 Jan 2018 08:55:25 +0100 Subject: crypto: af_alg - whitelist mask and type From: Stephan Mueller <smueller(a)chronox.de> commit bb30b8848c85e18ca7e371d0a869e94b3e383bdf upstream. The user space interface allows specifying the type and mask field used to allocate the cipher. Only a subset of the possible flags are intended for user space. Therefore, white-list the allowed flags. In case the user space caller uses at least one non-allowed flag, EINVAL is returned. Reported-by: syzbot <syzkaller(a)googlegroups.com> Signed-off-by: Stephan Mueller <smueller(a)chronox.de> Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- crypto/af_alg.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -149,7 +149,7 @@ EXPORT_SYMBOL_GPL(af_alg_release_parent) static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) { - const u32 forbidden = CRYPTO_ALG_INTERNAL; + const u32 allowed = CRYPTO_ALG_KERN_DRIVER_ONLY; struct sock *sk = sock->sk; struct alg_sock *ask = alg_sk(sk); struct sockaddr_alg *sa = (void *)uaddr; @@ -157,6 +157,10 @@ static int alg_bind(struct socket *sock, void *private; int err; + /* If caller uses non-allowed flag, return error. */ + if ((sa->salg_feat & ~allowed) || (sa->salg_mask & ~allowed)) + return -EINVAL; + if (sock->state == SS_CONNECTED) return -EINVAL; @@ -175,9 +179,7 @@ static int alg_bind(struct socket *sock, if (IS_ERR(type)) return PTR_ERR(type); - private = type->bind(sa->salg_name, - sa->salg_feat & ~forbidden, - sa->salg_mask & ~forbidden); + private = type->bind(sa->salg_name, sa->salg_feat, sa->salg_mask); if (IS_ERR(private)) { module_put(type->owner); return PTR_ERR(private); Patches currently in stable-queue which might be from smueller(a)chronox.de are queue-4.9/crypto-af_alg-whitelist-mask-and-type.patch queue-4.9/crypto-aesni-handle-zero-length-dst-buffer.patch

7 years, 5 months

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[Linux-stable-mirror] Patch "crypto: sha3-generic - fixes for alignment and big endian operation" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled crypto: sha3-generic - fixes for alignment and big endian operation to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: crypto-sha3-generic-fixes-for-alignment-and-big-endian-operation.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From c013cee99d5a18aec8c71fee8f5f41369cd12595 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel <ard.biesheuvel(a)linaro.org> Date: Fri, 19 Jan 2018 12:04:33 +0000 Subject: crypto: sha3-generic - fixes for alignment and big endian operation From: Ard Biesheuvel <ard.biesheuvel(a)linaro.org> commit c013cee99d5a18aec8c71fee8f5f41369cd12595 upstream. Ensure that the input is byte swabbed before injecting it into the SHA3 transform. Use the get_unaligned() accessor for this so that we don't perform unaligned access inadvertently on architectures that do not support that. Fixes: 53964b9ee63b7075 ("crypto: sha3 - Add SHA-3 hash algorithm") Signed-off-by: Ard Biesheuvel <ard.biesheuvel(a)linaro.org> Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- crypto/sha3_generic.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/crypto/sha3_generic.c +++ b/crypto/sha3_generic.c @@ -18,6 +18,7 @@ #include <linux/types.h> #include <crypto/sha3.h> #include <asm/byteorder.h> +#include <asm/unaligned.h> #define KECCAK_ROUNDS 24 @@ -149,7 +150,7 @@ static int sha3_update(struct shash_desc unsigned int i; for (i = 0; i < sctx->rsizw; i++) - sctx->st[i] ^= ((u64 *) src)[i]; + sctx->st[i] ^= get_unaligned_le64(src + 8 * i); keccakf(sctx->st); done += sctx->rsiz; @@ -174,7 +175,7 @@ static int sha3_final(struct shash_desc sctx->buf[sctx->rsiz - 1] |= 0x80; for (i = 0; i < sctx->rsizw; i++) - sctx->st[i] ^= ((u64 *) sctx->buf)[i]; + sctx->st[i] ^= get_unaligned_le64(sctx->buf + 8 * i); keccakf(sctx->st); Patches currently in stable-queue which might be from ard.biesheuvel(a)linaro.org are queue-4.9/crypto-sha3-generic-fixes-for-alignment-and-big-endian-operation.patch

7 years, 5 months

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[Linux-stable-mirror] Patch "crypto: ecdh - fix typo in KPP dependency of CRYPTO_ECDH" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled crypto: ecdh - fix typo in KPP dependency of CRYPTO_ECDH to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: crypto-ecdh-fix-typo-in-kpp-dependency-of-crypto_ecdh.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From b5b9007730ce1d90deaf25d7f678511550744bdc Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens <hauke(a)hauke-m.de> Date: Sun, 26 Nov 2017 00:16:46 +0100 Subject: crypto: ecdh - fix typo in KPP dependency of CRYPTO_ECDH From: Hauke Mehrtens <hauke(a)hauke-m.de> commit b5b9007730ce1d90deaf25d7f678511550744bdc upstream. This fixes a typo in the CRYPTO_KPP dependency of CRYPTO_ECDH. Fixes: 3c4b23901a0c ("crypto: ecdh - Add ECDH software support") Signed-off-by: Hauke Mehrtens <hauke(a)hauke-m.de> Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- crypto/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -120,7 +120,7 @@ config CRYPTO_DH config CRYPTO_ECDH tristate "ECDH algorithm" - select CRYTPO_KPP + select CRYPTO_KPP help Generic implementation of the ECDH algorithm Patches currently in stable-queue which might be from hauke(a)hauke-m.de are queue-4.9/crypto-ecdh-fix-typo-in-kpp-dependency-of-crypto_ecdh.patch

7 years, 5 months

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[Linux-stable-mirror] Patch "crypto: aesni - handle zero length dst buffer" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled crypto: aesni - handle zero length dst buffer to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: crypto-aesni-handle-zero-length-dst-buffer.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 9c674e1e2f9e24fa4392167efe343749008338e0 Mon Sep 17 00:00:00 2001 From: Stephan Mueller <smueller(a)chronox.de> Date: Thu, 18 Jan 2018 20:41:09 +0100 Subject: crypto: aesni - handle zero length dst buffer From: Stephan Mueller <smueller(a)chronox.de> commit 9c674e1e2f9e24fa4392167efe343749008338e0 upstream. GCM can be invoked with a zero destination buffer. This is possible if the AAD and the ciphertext have zero lengths and only the tag exists in the source buffer (i.e. a source buffer cannot be zero). In this case, the GCM cipher only performs the authentication and no decryption operation. When the destination buffer has zero length, it is possible that no page is mapped to the SG pointing to the destination. In this case, sg_page(req->dst) is an invalid access. Therefore, page accesses should only be allowed if the req->dst->length is non-zero which is the indicator that a page must exist. This fixes a crash that can be triggered by user space via AF_ALG. Signed-off-by: Stephan Mueller <smueller(a)chronox.de> Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/x86/crypto/aesni-intel_glue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/crypto/aesni-intel_glue.c +++ b/arch/x86/crypto/aesni-intel_glue.c @@ -906,7 +906,7 @@ static int helper_rfc4106_encrypt(struct if (sg_is_last(req->src) && req->src->offset + req->src->length <= PAGE_SIZE && - sg_is_last(req->dst) && ++ sg_is_last(req->dst) && req->dst->length && req->dst->offset + req->dst->length <= PAGE_SIZE) { one_entry_in_sg = 1; scatterwalk_start(&src_sg_walk, req->src); Patches currently in stable-queue which might be from smueller(a)chronox.de are queue-4.9/crypto-af_alg-whitelist-mask-and-type.patch queue-4.9/crypto-aesni-handle-zero-length-dst-buffer.patch

7 years, 5 months

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[Linux-stable-mirror] Patch "scsi: storvsc: missing error code in storvsc_probe()" has been added to the 4.15-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled scsi: storvsc: missing error code in storvsc_probe() to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: scsi-storvsc-missing-error-code-in-storvsc_probe.patch and it can be found in the queue-4.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From ca8dc694045e9aa248e9916e0f614deb0494cb3d Mon Sep 17 00:00:00 2001 From: Dan Carpenter <dan.carpenter(a)oracle.com> Date: Tue, 16 Jan 2018 13:40:22 +0300 Subject: scsi: storvsc: missing error code in storvsc_probe() From: Dan Carpenter <dan.carpenter(a)oracle.com> commit ca8dc694045e9aa248e9916e0f614deb0494cb3d upstream. We should set the error code if fc_remote_port_add() fails. Fixes: daf0cd445a21 ("scsi: storvsc: Add support for FC rport.") Signed-off-by: Dan Carpenter <dan.carpenter(a)oracle.com> Reviewed-by: Cathy Avery <cavery(a)redhat.com> Acked-by: K. Y. Srinivasan <kys(a)microsoft.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/scsi/storvsc_drv.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1834,8 +1834,10 @@ static int storvsc_probe(struct hv_devic fc_host_node_name(host) = stor_device->node_name; fc_host_port_name(host) = stor_device->port_name; stor_device->rport = fc_remote_port_add(host, 0, &ids); - if (!stor_device->rport) + if (!stor_device->rport) { + ret = -ENOMEM; goto err_out4; + } } #endif return 0; Patches currently in stable-queue which might be from dan.carpenter(a)oracle.com are queue-4.15/scsi-storvsc-missing-error-code-in-storvsc_probe.patch

7 years, 5 months

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[Linux-stable-mirror] Patch "scsi: aacraid: Fix udev inquiry race condition" has been added to the 4.15-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled scsi: aacraid: Fix udev inquiry race condition to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: scsi-aacraid-fix-udev-inquiry-race-condition.patch and it can be found in the queue-4.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From f4e8708d3104437fd7716e957f38c265b0c509ef Mon Sep 17 00:00:00 2001 From: Raghava Aditya Renukunta <RaghavaAditya.Renukunta(a)microsemi.com> Date: Tue, 26 Dec 2017 20:34:22 -0800 Subject: scsi: aacraid: Fix udev inquiry race condition From: Raghava Aditya Renukunta <RaghavaAditya.Renukunta(a)microsemi.com> commit f4e8708d3104437fd7716e957f38c265b0c509ef upstream. When udev requests for a devices inquiry string, it might create multiple threads causing a race condition on the shared inquiry resource string. Created a buffer with the string for each thread. Fixes: 3bc8070fb75b3315 ([SCSI] aacraid: SMC vendor identification) Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta(a)microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/scsi/aacraid/aachba.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -913,8 +913,16 @@ static void setinqstr(struct aac_dev *de memset(str, ' ', sizeof(*str)); if (sup_adap_info->adapter_type_text[0]) { - char *cp = sup_adap_info->adapter_type_text; int c; + char *cp; + char *cname = kmemdup(sup_adap_info->adapter_type_text, + sizeof(sup_adap_info->adapter_type_text), + GFP_ATOMIC); + + if (!cname) + return; + + cp = cname; if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C')) inqstrcpy("SMC", str->vid); else { @@ -923,7 +931,7 @@ static void setinqstr(struct aac_dev *de ++cp; c = *cp; *cp = '\0'; - inqstrcpy(sup_adap_info->adapter_type_text, str->vid); + inqstrcpy(cname, str->vid); *cp = c; while (*cp && *cp != ' ') ++cp; @@ -937,8 +945,8 @@ static void setinqstr(struct aac_dev *de cp[sizeof(str->pid)] = '\0'; } inqstrcpy (cp, str->pid); - if (c) - cp[sizeof(str->pid)] = c; + + kfree(cname); } else { struct aac_driver_ident *mp = aac_get_driver_ident(dev->cardtype); Patches currently in stable-queue which might be from RaghavaAditya.Renukunta(a)microsemi.com are queue-4.15/scsi-aacraid-fix-udev-inquiry-race-condition.patch queue-4.15/scsi-aacraid-fix-hang-in-kdump.patch

7 years, 5 months

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[Linux-stable-mirror] Patch "scsi: aacraid: Fix hang in kdump" has been added to the 4.15-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled scsi: aacraid: Fix hang in kdump to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: scsi-aacraid-fix-hang-in-kdump.patch and it can be found in the queue-4.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From c5313ae8e4e037bfaf5e56cb8d6efdb8e92ce437 Mon Sep 17 00:00:00 2001 From: Raghava Aditya Renukunta <RaghavaAditya.Renukunta(a)microsemi.com> Date: Tue, 26 Dec 2017 20:34:24 -0800 Subject: scsi: aacraid: Fix hang in kdump From: Raghava Aditya Renukunta <RaghavaAditya.Renukunta(a)microsemi.com> commit c5313ae8e4e037bfaf5e56cb8d6efdb8e92ce437 upstream. Driver attempts to perform a device scan and device add after coming out of reset. At times when the kdump kernel loads and it tries to perform eh recovery, the device scan hangs since its commands are blocked because of the eh recovery. This should have shown up in normal eh recovery path (Should have been obvious) Remove the code that performs scanning.I can live without the rescanning support in the stable kernels but a hanging kdump/eh recovery needs to be fixed. Fixes: a2d0321dd532901e (scsi: aacraid: Reload offlined drives after controller reset) Reported-by: Douglas Miller <dougmill(a)linux.vnet.ibm.com> Tested-by: Guilherme G. Piccoli <gpiccoli(a)linux.vnet.ibm.com> Fixes: a2d0321dd532901e (scsi: aacraid: Reload offlined drives after controller reset) Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta(a)microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/scsi/aacraid/aachba.c | 1 - drivers/scsi/aacraid/commsup.c | 9 +-------- 2 files changed, 1 insertion(+), 9 deletions(-) --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -918,7 +918,6 @@ static void setinqstr(struct aac_dev *de char *cname = kmemdup(sup_adap_info->adapter_type_text, sizeof(sup_adap_info->adapter_type_text), GFP_ATOMIC); - if (!cname) return; --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1643,14 +1643,7 @@ static int _aac_reset_adapter(struct aac out: aac->in_reset = 0; scsi_unblock_requests(host); - /* - * Issue bus rescan to catch any configuration that might have - * occurred - */ - if (!retval) { - dev_info(&aac->pdev->dev, "Issuing bus rescan\n"); - scsi_scan_host(host); - } + if (jafo) { spin_lock_irq(host->host_lock); } Patches currently in stable-queue which might be from RaghavaAditya.Renukunta(a)microsemi.com are queue-4.15/scsi-aacraid-fix-udev-inquiry-race-condition.patch queue-4.15/scsi-aacraid-fix-hang-in-kdump.patch

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