high7.8
CVE-2022-49288
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix races among concurrent prealloc proc writes We have no protection against co…
Impact
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix races among concurrent prealloc proc writes We have no protection against concurrent PCM buffer preallocation changes via proc files, and it may potentially lead to UAF or some weird problem. This patch applies the PCM open_mutex to the proc write operation for avoiding the racy proc writes and the PCM stream open (and further operations).
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | before 4.14.279 from 4.15 before 4.19.243 from 4.20 before 5.4.193 from 5.5 before 5.10.109 from 5.11 before 5.15.32 from 5.16 before 5.16.18 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/37b12c16beb6f6c1c3c678c1aacbc46525c250f7
- https://git.kernel.org/stable/c/51fce708ab8986a9879ee5da946a2cc120f1036d
- https://git.kernel.org/stable/c/5ed8f8e3c4e59d0396b9ccf2e639711e24295bb6
- https://git.kernel.org/stable/c/69534c48ba8ce552ce383b3dfdb271ffe51820c3
- https://git.kernel.org/stable/c/a21d2f323b5a978dedf9ff1d50f101f85e39b3f2
- https://git.kernel.org/stable/c/b560d670c87d7d40b3cf6949246fa4c7aa65a00a
- https://git.kernel.org/stable/c/e14dca613e0a6ddc2bf6e360f16936a9f865205b
- https://git.kernel.org/stable/c/e7786c445bb67a9a6e64f66ebd6b7215b153ff7d