From: Miaoqian Lin linmq006@gmail.com

commit fa0ef93868a6062babe1144df2807a8b1d4924d2 upstream.

Add the missing platform_device_put() before return from dwc3_qcom_acpi_register_core in the error handling case.

Fixes: 2bc02355f8ba ("usb: dwc3: qcom: Add support for booting with ACPI") Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20211231113641.31474-1-linmq006@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org [Denis: minor fix to resolve merge conflict and add tag Fixes.] Signed-off-by: Denis Arefev arefev@swemel.ru --- Backport fix for CVE-2023-22995 Link: https://nvd.nist.gov/vuln/detail/cve-2023-22995 --- drivers/usb/dwc3/dwc3-qcom.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index db3559a10207..568973582b75 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -622,8 +622,10 @@ static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) qcom->dwc3->dev.coherent_dma_mask = dev->coherent_dma_mask;

child_res = kcalloc(2, sizeof(*child_res), GFP_KERNEL); - if (!child_res) + if (!child_res) { + platform_device_put(qcom->dwc3); return -ENOMEM; + }

res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { @@ -659,10 +661,15 @@ static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) }

ret = platform_device_add(qcom->dwc3); - if (ret) + if (ret) { dev_err(&pdev->dev, "failed to add device\n"); + goto out; + } + kfree(child_res); + return 0;

out: + platform_device_put(qcom->dwc3); kfree(child_res); return ret; }