CVE-2024-50056 usb: gadget: uvc: Fix ERR_PTR dereference in uvc_v4l2.c

What is CVE-2024-50056?

CVE-2024-50056 is a medium-severity vulnerability in Linux kernel, published on 21 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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().

Weakness: CWE-476

Which versions are affected by CVE-2024-50056?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-50056?

Apply the vendor's patch.

Is CVE-2024-50056 being exploited?

There is no known exploitation of CVE-2024-50056 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-50056, DEBIAN-CVE-2024-50056, GHSA-x464-67pg-rxcc, ROOT-OS-DEBIAN-11-CVE-2024-50056, ROOT-OS-UBUNTU-2204-CVE-2024-50056, UBUNTU-CVE-2024-50056.