PT-2026-27654 · Linux · Linux Kernel

Published 2026-01-01 · Updated 2026-04-20 · CVE-2026-23289

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 flaw exists in the Linux kernel related to IB/mthca, specifically concerning a missing call to mthca unmap user db() within the mthca create srq() function. This can lead to a user-triggerable memory leak when a system call fails.

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

Exploit

Related Identifiers

CVE-2026-23289

ECHO-F237-5771-3C00

Affected Products

Linux Kernel

References · 23

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23289.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-23289 · Security Note
• https://git.kernel.org/stable/c/972b72d7e2d8fe1400f1c7a8304c282c539b7e02 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23289 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-23289 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-23289 · Vendor Advisory
• https://git.kernel.org/stable/c/f67f1ad4029e9fa183141546de31987b254c9292 · Patch
• https://git.kernel.org/stable/c/d0148965dbca8cc8efa7e3d6e99940487bf661c0 · Patch
• https://git.kernel.org/stable/c/117942ca43e2e3c3d121faae530989931b7f67e1 · Patch
• https://cve.org/CVERecord?id=CVE-2026-23289 · Security Note
• https://git.kernel.org/stable/c/deee46b37ebd8cc5ff810127883fca90f2412a7b · Patch
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2026-23289 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23289 · Vendor Advisory
• https://git.kernel.org/stable/c/72fcfd4df46f2ee684c4776664d0cfc6c1746c9a · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-23289 · Vendor Advisory