PT-2026-27703 · Linux · Linux Kernel

Published 2026-01-01 · Updated 2026-03-28 · CVE-2026-23338

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’s drm/amdgpu/userq subsystem. Userspace applications can trigger kernel warnings, either intentionally by providing an insufficient number of fences or legitimately due to an increase in the required number of fences between calls to the userq wait ioctl. The issue stems from WARN ON statements within the kernel code. The fix involves removing these WARN ON statements to prevent the emission of unnecessary kernel warnings when userspace receives an error.

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

Exploit

Related Identifiers

CVE-2026-23338

Affected Products

Linux Kernel

References · 15

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23338.json · Exploit
• https://git.kernel.org/stable/c/1753f5f81ab60a553287f9ee659a6ac363adf8d7 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23338 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-23338 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-23338 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-23338 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-23338 · Security Note
• https://git.kernel.org/stable/c/7321302edca3a349ddaea689df95b986beee6c4a · Patch
• https://ubuntu.com/security/CVE-2026-23338 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23338 · Vendor Advisory
• https://git.kernel.org/stable/c/7b7d7693a55d606d700beb9549c9f7f0e5d9c24f · Patch
• https://twitter.com/CVEarity/status/2037926655973552385 · Twitter Post
• https://twitter.com/CVEnew/status/2036763510110146758 · Twitter Post
• https://git.kernel.org/linus/7b7d7693a55d606d700beb9549c9f7f0e5d9c24f · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note