media: camss: Clean up received buffers on failed start of streaming
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: media: camss: Clean up received buffers on failed start of streaming It is required to return the received buffers, if streaming can not be started. For instance media_pipeline_start() may fail with EPIPE, if a link validation between entities is not passed, and in such a case a user gets a kernel warning: WARNING: CPU: 1 PID: 520 at drivers/media/common/videobuf2/videobuf2-core.c:1592 vb2_start_streaming+0xec/0x160 <snip> Call trace: vb2_start_streaming+0xec/0x160 vb2_core_streamon+0x9c/0x1a0 vb2_ioctl_streamon+0x68/0xbc v4l_streamon+0x30/0x3c __video_do_ioctl+0x184/0x3e0 video_usercopy+0x37c/0x7b0 video_ioctl2+0x24/0x40 v4l2_ioctl+0x4c/0x70 The fix is to correct the error path in video_start_streaming() of camss.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2022-50757
- 2026-10-03 Alias added: GHSA-g5hv-6pvx-45rj
References
Other 8
- https://git.kernel.org/stable/c/75954cde8a5ca84003b24b6bf83197240935bd74
- https://git.kernel.org/stable/c/04c734c716a97f1493b1edac41316aaed1d2a9d9
- https://git.kernel.org/stable/c/fe443b3fe36cd23d4f5dc6d825d34322e7c89f0c
- https://git.kernel.org/stable/c/3d5cab726e3b370fea1b6e67183f0e13c409ce5c
- https://git.kernel.org/stable/c/d1c44928bb3ca0ec88e7ad5937a2a26a259aede6
- https://git.kernel.org/stable/c/f05326a440dc31b91b688b2f3f15b7347894a50b
- https://git.kernel.org/stable/c/24df4fa3e795fb4b15fd4d3c036596e0978d265a
- https://git.kernel.org/stable/c/c8f3582345e6a69da65ab588f7c4c2d1685b0e80
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Sources
- CVE-2022-50757 · CVE Program
- CVE-2022-50757 · NVD
- FIRST EPSS
- GHSA-g5hv-6pvx-45rj · GitHub Advisory Database · CC BY 4.0
- CVE-2022-50757 · Red Hat security data · CC BY 4.0
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