VulnerabilityPublished 18 Mar 2026Updated 5 Nov 2026

CVE-2026-23252: Linux kernel · xfs: get rid of the xchk_xfile_*_descr calls

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in 60382993a2e18041f88c7969f567f168cd3b4de3 : 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 60382993a2e18041f88c7969f567f168cd3b4de3, 695455fbc49053cbf555f2f302a5dcd600f412ff, 18e9cf2259b4157fd282b323514375f2f6a59edb +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 60382993a2e18041f88c7969f567f168cd3b4de3, 695455fbc49053cbf555f2f302a5dcd600f412ff, 18e9cf2259b4157fd282b323514375f2f6a59edb or 2d8afee89262762fe0e5547772708c75f320c957.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ ab97f4b1c030750f2475bf4da8a9554d02206640, < 60382993a2e18041f88c7969f567f168cd3b4de3	Fixed in 60382993a2e18041f88c7969f567f168cd3b4de3
LinuxLinux	Affected ≥ ab97f4b1c030750f2475bf4da8a9554d02206640, < 695455fbc49053cbf555f2f302a5dcd600f412ff	Fixed in 695455fbc49053cbf555f2f302a5dcd600f412ff
LinuxLinux	Affected ≥ ab97f4b1c030750f2475bf4da8a9554d02206640, < 18e9cf2259b4157fd282b323514375f2f6a59edb	Fixed in 18e9cf2259b4157fd282b323514375f2f6a59edb
LinuxLinux	Affected ≥ ab97f4b1c030750f2475bf4da8a9554d02206640, < 2d8afee89262762fe0e5547772708c75f320c957	Fixed in 2d8afee89262762fe0e5547772708c75f320c957
LinuxLinux	Affected =6.10	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: xfs: get rid of the xchk_xfile_*_descr calls The xchk_xfile_*_descr macros call kasprintf, which can fail to allocate memory if the formatted string is larger than 16 bytes (or whatever the nofail guarantees are nowadays). Some of them could easily exceed that, and Jiaming Zhang found a few places where that can happen with syzbot. The descriptions are debugging aids and aren't required to be unique, so let's just pass in static strings and eliminate this path to failure. Note this patch touches a number of commits, most of which were merged between 6.6 and 6.14.

References

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