Tracker / CVE-2022-49288
CVE-2022-49288
High 7.8
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 and versions
| linux | linux_kernel · … → 4.14.279 |
|---|---|
| linux | linux_kernel · 4.15 → 4.19.243 |
| linux | linux_kernel · 4.20 → 5.4.193 |
| linux | linux_kernel · 5.11 → 5.15.32 |
| linux | linux_kernel · 5.16 → 5.16.18 |
| linux | linux_kernel · 5.17 → 5.17.1 |
| linux | linux_kernel · 5.5 → 5.10.109 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.