VulnerabilityPublished 18 Mar 2026Updated 5 Nov 2026

CVE-2026-23250: Linux kernel · xfs: check return value of xchk_scrub_create_subord

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in d6f3f7d4dd8a179394cef03c00993d57f5f68601 : update Linux kernel when convenient.

Data as of 5 Nov 2026, 22:04 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, 2026-11-05.

Patch

Available – fixed in d6f3f7d4dd8a179394cef03c00993d57f5f68601, ca27313fb3f23e4ac18532ede4ec1c7cc5814c4a, b2df809edd8cb7d1c3e19d9f6aabc2bd55d2bfb6 +1

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Mar 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 5 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 d6f3f7d4dd8a179394cef03c00993d57f5f68601, ca27313fb3f23e4ac18532ede4ec1c7cc5814c4a, b2df809edd8cb7d1c3e19d9f6aabc2bd55d2bfb6 or 2b658d1249666cc55af9484dcf5f45ca438d4ecc.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 1a5f6e08d4e379a23da5be974aee50b26a20c5b0, < d6f3f7d4dd8a179394cef03c00993d57f5f68601	Fixed in d6f3f7d4dd8a179394cef03c00993d57f5f68601
LinuxLinux	Affected ≥ 1a5f6e08d4e379a23da5be974aee50b26a20c5b0, < ca27313fb3f23e4ac18532ede4ec1c7cc5814c4a	Fixed in ca27313fb3f23e4ac18532ede4ec1c7cc5814c4a
LinuxLinux	Affected ≥ 1a5f6e08d4e379a23da5be974aee50b26a20c5b0, < b2df809edd8cb7d1c3e19d9f6aabc2bd55d2bfb6	Fixed in b2df809edd8cb7d1c3e19d9f6aabc2bd55d2bfb6
LinuxLinux	Affected ≥ 1a5f6e08d4e379a23da5be974aee50b26a20c5b0, < 2b658d1249666cc55af9484dcf5f45ca438d4ecc	Fixed in 2b658d1249666cc55af9484dcf5f45ca438d4ecc
LinuxLinux	Affected =6.10	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: xfs: check return value of xchk_scrub_create_subord Fix this function to return NULL instead of a mangled ENOMEM, then fix the callers to actually check for a null pointer and return ENOMEM. Most of the corrections here are for code merged between 6.2 and 6.10.

References

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