| Name | CVE-2024-38618 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3840-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | buster | 4.19.249-2 | vulnerable |
| buster (security) | 4.19.316-1 | fixed | |
| bullseye (security), bullseye | 5.10.218-1 | vulnerable | |
| bookworm | 6.1.94-1 | fixed | |
| bookworm (security) | 6.1.90-1 | vulnerable | |
| trixie | 6.8.12-1 | vulnerable | |
| sid | 6.9.7-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | buster | 4.19.316-1 | DLA-3840-1 | ||
| linux | source | bookworm | 6.1.94-1 | |||
| linux | source | (unstable) | 6.9.7-1 |
https://git.kernel.org/linus/4a63bd179fa8d3fcc44a0d9d71d941ddd62f0c4e (6.10-rc1)