| From bippy-7c5fe7eed585 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-50056: usb: gadget: uvc: Fix ERR_PTR dereference in uvc_v4l2.c |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| usb: gadget: uvc: Fix ERR_PTR dereference in uvc_v4l2.c |
| |
| Fix potential dereferencing of ERR_PTR() in find_format_by_pix() |
| and uvc_v4l2_enum_format(). |
| |
| Fix the following smatch errors: |
| |
| drivers/usb/gadget/function/uvc_v4l2.c:124 find_format_by_pix() |
| error: 'fmtdesc' dereferencing possible ERR_PTR() |
| |
| drivers/usb/gadget/function/uvc_v4l2.c:392 uvc_v4l2_enum_format() |
| error: 'fmtdesc' dereferencing possible ERR_PTR() |
| |
| Also, fix similar issue in uvc_v4l2_try_format() for potential |
| dereferencing of ERR_PTR(). |
| |
| The Linux kernel CVE team has assigned CVE-2024-50056 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.1.133 with commit 03fa71e97e9bb116993ec1d51b8a6fe776db0984 |
| Fixed in 6.6.86 with commit 72a68d2bede3284b95ee93a5ab3a81758bba95b0 |
| Fixed in 6.11.4 with commit cedeb36c3ff4acd0f3d09918dfd8ed1df05efdd6 |
| Fixed in 6.12 with commit a7bb96b18864225a694e3887ac2733159489e4b0 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-50056 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/usb/gadget/function/uvc_v4l2.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/03fa71e97e9bb116993ec1d51b8a6fe776db0984 |
| https://git.kernel.org/stable/c/72a68d2bede3284b95ee93a5ab3a81758bba95b0 |
| https://git.kernel.org/stable/c/cedeb36c3ff4acd0f3d09918dfd8ed1df05efdd6 |
| https://git.kernel.org/stable/c/a7bb96b18864225a694e3887ac2733159489e4b0 |
