PT-2026-30165 · Linux · Linux Kernel

Published 2026-04-03 · Updated 2026-04-20 · CVE-2026-23471

Positive Technologies (AI Summary)

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.0-rc1-valkyria+

Description A use-after-free issue exists in the Linux kernel related to framebuffers and property blobs when calling drm dev unplug. The issue occurs when dereferencing freed pointers related to framebuffers and property blobs after the compositor exits. This can lead to OOPSes and general protection faults, potentially causing system instability.

Recommendations Update to a version of the Linux kernel that is not affected by this issue.

Related Identifiers

CVE-2026-23471

Affected Products

Linux Kernel

References · 19

• https://osv.dev/vulnerability/BELL-CVE-2026-23471 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-23471 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-23471 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23471 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2026-23471 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-23471 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23471 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23471 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-23471 · Security Note
• https://git.kernel.org/linus/6bee098b91417654703e17eb5c1822c6dfd0c01d · Note
• https://git.kernel.org/stable/c/7e3ec3bf4015156dcc5bafed13f26a587cc37f5c · Note
• https://git.kernel.org/stable/c/6bee098b91417654703e17eb5c1822c6dfd0c01d · Note
• https://git.kernel.org/stable/c/e493c135980f90c20308d1a98f2e0d1223951e94 · Note
• https://git.kernel.org/stable/c/eec4d5758f33925e0bdb4a32b45d86a68afa4516 · Note
• https://twitter.com/VulmonFeeds/status/2040194443551109345 · Twitter Post