CVE-2024-49573

sched/fair: Fix NEXT_BUDDY

MEDIUM
5.5
CVSS Score
Published: January 11, 2025 at 12:35 PM UTC
Updated: August 5, 2026 at 12:04 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.12 ≤ v < 6.12.76.12 ≤ v < 6.13152e11f6df293e816a6a37c69757033cdc72667d6.13 rc16.13 rc2
Vendor states this is fixed in 493afbd187c4c9cc1642792c0d9ba400c3d6d90d (fixed)
Vendor states this is fixed in 5dbe6816c49197677a5ecce749bd99929da147da (fixed)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.12.7 (unaffected)
Vendor states this is fixed in 6.13 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/493afbd187c4c9cc1642792c0d9ba400c3d6d90d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5dbe6816c49197677a5ecce749bd99929da147da

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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