PT-2026-34341 · Linux · Linux Kernel

Published 2026-04-22 · Updated 2026-05-15 · CVE-2026-31436

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the dmaengine idxd component within the llist abort desc() function. The code incorrectly completes the found variable instead of the traversal cursor d at the end of the function. This error can result in descriptor leaks, double completion, or NULL pointer dereferences.

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

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-31436

OESA-2026-2312

OESA-2026-2313

OESA-2026-2314

Affected Products

Linux Kernel

References · 41

• https://nvd.nist.gov/vuln/detail/CVE-2026-31575 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-43214 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-43018 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-31436 · Security Note
• https://git.kernel.org/stable/c/e21da2ad8844585040fe4b82be1ad2fe99d40074 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31436 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31436 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2313 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31625 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-43017 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31515 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31674 · Security Note
• https://osv.dev/vulnerability/OESA-2026-2314 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31624 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31436 · Security Note