Tracker / CVE-2024-38618
CVE-2024-38618
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Set lower bound of start tick time Currently ALSA timer doesn't have the lower limit of the start tick time, and it allows a very small size, e.g. 1 tick with 1ns resolution for hrtimer. Such a situation may lead to an unexpected RCU stall, where the callback repeatedly queuing the expire update, as reported by fuzzer. This patch introduces a sanity check of the timer start tick time, so that the system returns an error when a too small start size is set. As of this patch, the lower limit is hard-coded to 100us, which is small enough but can still work somehow.
Affected products and versions
| linux | linux_kernel · … → 4.19.316 |
|---|---|
| linux | linux_kernel · 4.20 → 5.4.278 |
| linux | linux_kernel · 5.11 → 5.15.161 |
| linux | linux_kernel · 5.16 → 6.1.93 |
| linux | linux_kernel · 5.5 → 5.10.219 |
| linux | linux_kernel · 6.2 → 6.6.33 |
| linux | linux_kernel · 6.7 → 6.9.3 |
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.