CVE-2024-38618

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Source
https://cve.org/CVERecord?id=CVE-2024-38618
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-38618.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-38618
Downstream
Related
Published
2024-06-19T13:56:17.422Z
Modified
2026-03-23T05:12:27.013824251Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
ALSA: timer: Set lower bound of start tick time
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38618.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
bbaf5e97337287479eb78dbc3822d9560bbfd2e2
Fixed
68396c825c43664b20a3a1ba546844deb2b4e48f
Fixed
74bfb8d90f2601718ae203faf45a196844c01fa1
Fixed
bdd0aa055b8ec7e24bbc19513f3231958741d0ab
Fixed
83f0ba8592b9e258fd80ac6486510ab1dcd7ad6e
Fixed
ceab795a67dd28dd942d0d8bba648c6c0f7a044b
Fixed
2c95241ac5fc90c929d6c0c023e84bf0d30e84c3
Fixed
abb1ad69d98cf1ff25bb14fff0e7c3f66239e1cd
Fixed
4a63bd179fa8d3fcc44a0d9d71d941ddd62f0c4e

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-38618.json"