AZL-58789
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-58789.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-58789
- Upstream
- Published
- 2024-04-03T15:15:52Z
- Modified
- 2026-09-01T05:28:09Z
- 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
- CVE-2024-26686 affecting package kernel for versions less than 6.6.82.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
fs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats
lock_task_sighand() can trigger a hard lockup. If NR_CPUS threads call do_task_stat() at the same time and the process has NR_THREADS, it will spin with irqs disabled O(NR_CPUS * NR_THREADS) time.
Change do_task_stat() to use sig->stats_lock to gather the statistics outside of ->siglock protected section, in the likely case this code will run lockless.
- References