CVE-2022-49288
High
Description
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).
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedFeb 26, 2025
First seenFeb 26, 2025
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel4.14.279, 4.19.243, 5.4.193, 5.10.109, 5.15.32, 5.16.18, 5.17.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 4.14.279, 4.15 ≤ v < 4.19.243, 4.20 ≤ v < 5.4.193, 5.5 ≤ v < 5.10.109, 5.11 ≤ v < 5.15.32, 5.16 ≤ v < 5.16.18, 5.17 ≤ v < 5.17.1 | 4.14.279, 4.19.243, 5.4.193, 5.10.109, 5.15.32, 5.16.18, 5.17.1 |
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