PT-2026-37604 · Linux · Linux Kernel

Published 2026-05-06 · Updated 2026-05-08 · CVE-2026-43264

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 refcount leak exists in the of get display timings() function within the fbdev component. The of parse phandle() function returns a device node with an incremented reference count, which is stored in entry and subsequently copied to native mode. When error paths jump to entryfail, the reference count for native mode is not decremented, leading to the leak.

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

Related Identifiers

CVE-2026-43264

Affected Products

Linux Kernel

References · 18

• https://nvd.nist.gov/vuln/detail/CVE-2026-43264 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2026-43264 · Vendor Advisory
• https://git.kernel.org/stable/c/d6f34bbff07476c6abb8672c89d217824871c5ed · Patch
• https://git.kernel.org/stable/c/2b22e4fe1273c24f405ed7903349c4bbd82b6368 · Patch
• https://ubuntu.com/security/CVE-2026-43264 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43264 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43264 · Vendor Advisory
• https://git.kernel.org/stable/c/c5734f9030a8b1e13868d1641b5163d8e659306e · Patch
• https://git.kernel.org/stable/c/20881ad42e651c69d89eb38a2042838187900fd6 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-43264 · Vendor Advisory
• https://git.kernel.org/stable/c/3ed019654234edb8625c05d05e15d40f74e64f70 · Patch
• https://cve.org/CVERecord?id=CVE-2026-43264 · Security Note
• https://git.kernel.org/stable/c/eacf9840ae1285a1ef47eb0ce16d786e542bd4d7 · Patch
• https://git.kernel.org/stable/c/b5bdcc5afbff845834d04d651773cb6b47db5dd3 · Patch
• https://git.kernel.org/stable/c/69290f2d3999c5fa1a7f5d5593cfc5461fa3ee64 · Patch