PT-2024-21464 · Linux+10 · Linux Kernel+10
Oleg Nesterov
·
Published
2024-01-23
·
Updated
2026-05-26
·
CVE-2024-26686
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A vulnerability in the Linux kernel has been resolved. The issue is related to the
do task stat() function, which can trigger a hard lockup if NR CPUS threads call it at the same time and the process has NR THREADS. This can cause the system to spin with irqs disabled for O(NR CPUS * NR THREADS) time. The fix involves changing do task stat() to use sig->stats lock to gather statistics outside of the ->siglock protected section, allowing the code to run lockless in most cases.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Improper Locking
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Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Ubuntu