VulnerabilityPublished 23 Oct 2026

CVE-2026-98919: Linux kernel · drm/xe: harden adjust_idledly() against divide-by-zero and overflow

Source GCVE Database

Authoritative record:CVE-2026-98919· High

Not known to be exploited · fixed in 531d4cd03118224022dc21ae25af052ce2a9e267 : patch Linux kernel soon.

Data as of 26 Oct 2026, 17:16 UTC

Severity

High

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 531d4cd03118224022dc21ae25af052ce2a9e267, 90f467577ebc28c5bc4ba2f0f1b83a4419fb0740, 2bcbfc5e7bfa9cc76818c54db698da5bdc13d9ff

Exploitation evidence

Disclosed: evidence found.
CVE published 23 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-wghv-7vwx-fc47

What to do

Upgrade Linux kernel to 531d4cd03118224022dc21ae25af052ce2a9e267, 90f467577ebc28c5bc4ba2f0f1b83a4419fb0740 or 2bcbfc5e7bfa9cc76818c54db698da5bdc13d9ff.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ d2de4410a88ffc6053300d03041cc73b8c85dbaf, < 531d4cd03118224022dc21ae25af052ce2a9e267	Fixed in 531d4cd03118224022dc21ae25af052ce2a9e267
LinuxLinux	Affected ≥ d2de4410a88ffc6053300d03041cc73b8c85dbaf, < 90f467577ebc28c5bc4ba2f0f1b83a4419fb0740	Fixed in 90f467577ebc28c5bc4ba2f0f1b83a4419fb0740
LinuxLinux	Affected ≥ d2de4410a88ffc6053300d03041cc73b8c85dbaf, < 2bcbfc5e7bfa9cc76818c54db698da5bdc13d9ff	Fixed in 2bcbfc5e7bfa9cc76818c54db698da5bdc13d9ff
LinuxLinux	Affected =6.15	Fixed in–

AI-suggested

A fix has been implemented in the Linux kernel to address these issues. The patch includes early returns to prevent divide-by-zero, use of 64-bit arithmetic to avoid overflow, and proper clamping and masking of hardware register writes. Users should update to the fixed Linux kernel version containing this patch.

Description

A vulnerability in the Linux kernel's drm/xe component related to the adjust_idledly() function has been resolved. The function had multiple issues including a divide-by-zero error when an unrecognized crystal clock caused a zero timestamp base, and integer overflow problems in tick-to-nanosecond conversions. These issues could cause kernel panics or repeated warnings during initialization. The fix involves early returns to avoid divide-by-zero, using 64-bit arithmetic to prevent overflow, and careful clamping of delay values to avoid invalid programming of hardware registers.

References

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