PT-2026-27744 · Linux · Linux Kernel

Published 2026-01-01 · Updated 2026-04-23 · CVE-2026-23379

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 versions prior to 6.19.0-virtme #45

Description The Linux kernel contained a flaw in the ETS scheduler offload path where averaging over the sums of quanta could lead to an integer overflow and subsequent division by zero. This could trigger a kernel panic, potentially disrupting system operation. The issue stemmed from using unsigned integers of the same size as the individual DRR quanta for calculations involving 'q sum' and 'q psum'.

Recommendations Update to a newer version of the Linux kernel that addresses this issue.

Exploit

Fix

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

CVE-2026-23379

ECHO-B00A-5BA0-0CFF

OPENSUSE-SU-2026:20572-1

SUSE-SU-2026:1573-1

SUSE-SU-2026:1661-1

SUSE-SU-2026:21114-1

SUSE-SU-2026:21123-1

SUSE-SU-2026:21237-1

SUSE-SU-2026:21255-1

SUSE-SU-2026:21352-1

SUSE-SU-2026:21361-1

Affected Products

Linux Kernel

References · 216

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23379.json · Exploit
• https://git.kernel.org/stable/c/e35626f610f3d2b7953ccddf6a77453da22b3a9e · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-23379 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23379 · Vendor Advisory
• https://git.kernel.org/stable/c/3912871344d6a0f1f572a7af2716968182d1e536 · Patch
• https://git.kernel.org/stable/c/a6677e23b313cd9fd03690c589c6452cb6fffb97 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:1573-1 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-23379 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23379 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:21237-1 · Vendor Advisory
• https://git.kernel.org/stable/c/78b8d2f55a564236435649fbd8bd6a103f30acf5 · Patch
• https://git.kernel.org/stable/c/7dbffffd5761687e168fb2f4aaa7a2c47e067efc · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:21114-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:20572-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:21123-1 · Vendor Advisory