Riskcovery

CVE-2024-49573

sched/fair: Fix NEXT_BUDDY

State
Published
Severity
7.0 High
Published
Jan 11, 2025
Updated
Aug 5, 2026
Reserved
Jan 11, 2025

Read the record on cve.org

Description

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

sched/fair: Fix NEXT_BUDDY

Adam reports that enabling NEXT_BUDDY insta triggers a WARN in pick_next_entity().

Moving clear_buddies() up before the delayed dequeue bits ensures no ->next buddy becomes delayed. Further ensure no new ->next buddy ever starts as delayed.

Scores

CVSSScoreVectorSource
3.17.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 152e11f6df293e816a6a37c69757033cdc72667d to before 5dbe6816c49197677a5ecce749bd99929da147daAffected
  • 152e11f6df293e816a6a37c69757033cdc72667d to before 493afbd187c4c9cc1642792c0d9ba400c3d6d90dAffected
LinuxLinux
  • 6.12Affected
  • before 6.12Not affected
  • 6.12.7 through 6.12.*Not affected
  • 6.13 and laterNot affected

References

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