CVE-2024-26686

Source
https://nvd.nist.gov/vuln/detail/CVE-2024-26686
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26686.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-26686
Downstream
Related
Published
2024-04-03T15:15:52Z
Modified
2025-08-09T20:01:25Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

fs/proc: dotaskstat: use sig->stats_lock to gather the threads/children stats

locktasksighand() can trigger a hard lockup. If NRCPUS threads call dotaskstat() at the same time and the process has NRTHREADS, it will spin with irqs disabled O(NRCPUS * NRTHREADS) time.

Change dotaskstat() to use sig->stats_lock to gather the statistics outside of ->siglock protected section, in the likely case this code will run lockless.

References

Affected packages