PT-2025-2835 · Linux · Linux Kernel

Adam Li · Published 2024-12-09 · Updated 2025-10-15 · CVE-2024-49573

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base 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, related to the sched/fair component, specifically the NEXT BUDDY feature. Enabling NEXT BUDDY triggers a warning in the pick next entity() function. The fix involves moving the clear buddies() function to prevent delayed dequeue bits from causing issues with the ->next buddy. This ensures that no new ->next buddy starts as delayed.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-19

Related Identifiers

BDU:2026-03826

CVE-2024-49573

Affected Products

Linux Kernel

References · 21

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49573.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2024-49573 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2025-20480.html · Vendor Advisory
• https://git.kernel.org/stable/c/5dbe6816c49197677a5ecce749bd99929da147da · Patch
• https://ubuntu.com/security/CVE-2024-49573 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-49573 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-49573 · Security Note
• https://linux.oracle.com/errata/ELSA-2025-20530.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-49573 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-49573 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2024-49573 · Vendor Advisory
• https://git.kernel.org/stable/c/493afbd187c4c9cc1642792c0d9ba400c3d6d90d · Patch
• https://bdu.fstec.ru/vul/2026-03826 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-49573 · Vendor Advisory
• https://twitter.com/CVEnew/status/1878063310429708294 · Twitter Post