VulnerabilityPublished 28 Oct 2026

CVE-2026-99209: Linux kernel · drm/xe: skip eviction of a BO with no resource

Source GCVE Database

Authoritative record:CVE-2026-99209

Not known to be exploited · fixed in b6499d19ade1f1e4a1e6b739abc8c815297c98b8 : update Linux kernel when convenient.

Data as of 28 Oct 2026, 13:30 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Patch: Available – fixed in b6499d19ade1f1e4a1e6b739abc8c815297c98b8, 6046bb9cb2859e3d9bf939e4d6527f3827e1096f, 448e76cbdc6652ccd3ba337b7a6e1f028859f2ed

Exploitation evidence

Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, 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.

ghsa-c2vc-wwpc-95xx

What to do

Upgrade Linux kernel to b6499d19ade1f1e4a1e6b739abc8c815297c98b8, 6046bb9cb2859e3d9bf939e4d6527f3827e1096f or 448e76cbdc6652ccd3ba337b7a6e1f028859f2ed.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ dd08ebf6c3525a7ea2186e636df064ea47281987, < b6499d19ade1f1e4a1e6b739abc8c815297c98b8	Fixed in b6499d19ade1f1e4a1e6b739abc8c815297c98b8
LinuxLinux	Affected ≥ dd08ebf6c3525a7ea2186e636df064ea47281987, < 6046bb9cb2859e3d9bf939e4d6527f3827e1096f	Fixed in 6046bb9cb2859e3d9bf939e4d6527f3827e1096f
LinuxLinux	Affected ≥ dd08ebf6c3525a7ea2186e636df064ea47281987, < 448e76cbdc6652ccd3ba337b7a6e1f028859f2ed	Fixed in 448e76cbdc6652ccd3ba337b7a6e1f028859f2ed
LinuxLinux	Affected =6.8	Fixed in–

AI-suggested

A fix has been applied in the Linux kernel to handle BOs with no resources correctly by skipping eviction and returning an empty placement. Users should update to a kernel version that includes this fix. No additional mitigation is required beyond applying the official patch.

Description

A vulnerability in the Linux kernel's drm/xe component could cause a NULL pointer dereference when evicting a buffer object (BO) that has no associated resource. This occurs when an imported dma-buf BO's resource is freed during teardown but its attachment remains live, leading to a fault in the eviction process. The issue has been fixed by skipping eviction for BOs without resources.

References

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