VulnerabilityPublished 8 May 2026Updated 6 Nov 2026

CVE-2026-43395: Linux kernel · drm/xe/sync: Cleanup partially initialized sync on parse failure

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in f0af63ffa06306f12592cd3919fad6957b425e1b : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:04 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 f0af63ffa06306f12592cd3919fad6957b425e1b, af65cd1853599394b94201c08bed7a46717db478, 91c228f96fcfacc2341a58815b1da8c69da94ebb +1

Exploitation evidence

Disclosed: evidence found.
CVE published 8 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 Linux kernel to f0af63ffa06306f12592cd3919fad6957b425e1b, af65cd1853599394b94201c08bed7a46717db478, 91c228f96fcfacc2341a58815b1da8c69da94ebb or 1bfd7575092420ba5a0b944953c95b74a5646ff8.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ dd08ebf6c3525a7ea2186e636df064ea47281987, < f0af63ffa06306f12592cd3919fad6957b425e1b	Fixed in f0af63ffa06306f12592cd3919fad6957b425e1b
LinuxLinux	Affected ≥ dd08ebf6c3525a7ea2186e636df064ea47281987, < af65cd1853599394b94201c08bed7a46717db478	Fixed in af65cd1853599394b94201c08bed7a46717db478
LinuxLinux	Affected ≥ dd08ebf6c3525a7ea2186e636df064ea47281987, < 91c228f96fcfacc2341a58815b1da8c69da94ebb	Fixed in 91c228f96fcfacc2341a58815b1da8c69da94ebb
LinuxLinux	Affected ≥ dd08ebf6c3525a7ea2186e636df064ea47281987, < 1bfd7575092420ba5a0b944953c95b74a5646ff8	Fixed in 1bfd7575092420ba5a0b944953c95b74a5646ff8
LinuxLinux	Affected =6.8	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: drm/xe/sync: Cleanup partially initialized sync on parse failure xe_sync_entry_parse() can allocate references (syncobj, fence, chain fence, or user fence) before hitting a later failure path. Several of those paths returned directly, leaving partially initialized state and leaking refs. Route these error paths through a common free_sync label and call xe_sync_entry_cleanup(sync) before returning the error. (cherry picked from commit f939bdd9207a5d1fc55cced5459858480686ce22)

References

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