PT-2026-44343 · Linux · Linux Kernel

Published 2026-05-28 · Updated 2026-06-10 · CVE-2026-46220

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 The sdma v4 0 ring emit fence() function contains two BUG ON() assertions used to verify that fence writeback addresses are dword-aligned. Unprivileged users can trigger these assertions by submitting crafted 'DRM IOCTL AMDGPU CS' requests, which leads to a fatal kernel panic in a scheduler worker thread.

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

Exploit

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

CVE-2026-46220

ECHO-9EE0-8A6D-05C4

OPENSUSE-SU-2026:10954-1

Affected Products

Linux Kernel

References · 296

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46220.json · Exploit
• https://git.kernel.org/stable/c/0b91ea46bb68abf98a082bf239092253bbd6aaa2 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-46220 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10954-1 · Vendor Advisory
• https://git.kernel.org/stable/c/a4fd82fb0757c180bf622907397c528b89a827b2 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-46220 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-46220 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-46220 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-46220 · Security Note
• https://git.kernel.org/stable/c/d331fb241a4602253976ddd65144a8ba2b05665d · Patch
• https://ubuntu.com/security/CVE-2026-46220 · Vendor Advisory
• https://git.kernel.org/stable/c/78d2e624fa073c14970aa097adcf3ea31c157a66 · Patch
• https://git.kernel.org/stable/c/ecaa80318e900ca0c3f687742ede33b41cfd2f8e · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-46220 · Vendor Advisory
• https://git.kernel.org/stable/c/4f7ca00fa91daf0795ec6b3b130c5ebba1f155fe · Patch