VulnerabilityPublished 6 May 2026Updated 6 Nov 2026

CVE-2026-43264: Linux kernel · fbdev: of: display_timing: fix refcount leak in of_get_display_timings()

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in eacf9840ae1285a1ef47eb0ce16d786e542bd4d7 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 15:49 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in eacf9840ae1285a1ef47eb0ce16d786e542bd4d7, d6f34bbff07476c6abb8672c89d217824871c5ed, c5734f9030a8b1e13868d1641b5163d8e659306e +5

Exploitation evidence

Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ cc3f414cf2e404130584b63d373161ba6fd24bc2, < eacf9840ae1285a1ef47eb0ce16d786e542bd4d7	Fixed in eacf9840ae1285a1ef47eb0ce16d786e542bd4d7
LinuxLinux	Affected ≥ cc3f414cf2e404130584b63d373161ba6fd24bc2, < d6f34bbff07476c6abb8672c89d217824871c5ed	Fixed in d6f34bbff07476c6abb8672c89d217824871c5ed
LinuxLinux	Affected ≥ cc3f414cf2e404130584b63d373161ba6fd24bc2, < c5734f9030a8b1e13868d1641b5163d8e659306e	Fixed in c5734f9030a8b1e13868d1641b5163d8e659306e
LinuxLinux	Affected ≥ cc3f414cf2e404130584b63d373161ba6fd24bc2, < b5bdcc5afbff845834d04d651773cb6b47db5dd3	Fixed in b5bdcc5afbff845834d04d651773cb6b47db5dd3
LinuxLinux	Affected ≥ cc3f414cf2e404130584b63d373161ba6fd24bc2, < 69290f2d3999c5fa1a7f5d5593cfc5461fa3ee64	Fixed in 69290f2d3999c5fa1a7f5d5593cfc5461fa3ee64
LinuxLinux	Affected ≥ cc3f414cf2e404130584b63d373161ba6fd24bc2, < 20881ad42e651c69d89eb38a2042838187900fd6	Fixed in 20881ad42e651c69d89eb38a2042838187900fd6

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: of: display_timing: fix refcount leak in of_get_display_timings() of_parse_phandle() returns a device_node with refcount incremented, which is stored in 'entry' and then copied to 'native_mode'. When the error paths at lines 184 or 192 jump to 'entryfail', native_mode's refcount is not decremented, causing a refcount leak. Fix this by changing the goto target from 'entryfail' to 'timingfail', which properly calls of_node_put(native_mode) before cleanup.

References

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