CVE-2022-50757
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/04c734c716a97f1493b1edac41316aaed1d2a9d9
- https://git.kernel.org/stable/c/24df4fa3e795fb4b15fd4d3c036596e0978d265a
- https://git.kernel.org/stable/c/3d5cab726e3b370fea1b6e67183f0e13c409ce5c
- https://git.kernel.org/stable/c/75954cde8a5ca84003b24b6bf83197240935bd74
- https://git.kernel.org/stable/c/c8f3582345e6a69da65ab588f7c4c2d1685b0e80
- https://git.kernel.org/stable/c/d1c44928bb3ca0ec88e7ad5937a2a26a259aede6
- https://git.kernel.org/stable/c/f05326a440dc31b91b688b2f3f15b7347894a50b
- https://git.kernel.org/stable/c/fe443b3fe36cd23d4f5dc6d825d34322e7c89f0c
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.