VulnerabilityPublished 27 May 2026Updated 6 Nov 2026

CVE-2026-46005: Linux kernel · xfs: fix a resource leak in xfs_alloc_buftarg()

Affects Linux kernelSource CVE Database V5

Compare

Not known to be exploited · fixed in ed2d6442e61169e565727ba15c4f6a0cb5ce16df : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:34 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 ed2d6442e61169e565727ba15c4f6a0cb5ce16df, 5804cb507233ed767a83ac70527b2f6c4566ec75, 82fb9da6477d08bdab954dc7bc081a41f2f9cae6 +3

Exploitation evidence

Disclosed: evidence found.
CVE published 27 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 to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 6f643c57d57c56d4677bc05f1fca2ef3f249797c, < ed2d6442e61169e565727ba15c4f6a0cb5ce16df	Fixed in ed2d6442e61169e565727ba15c4f6a0cb5ce16df
LinuxLinux	Affected ≥ 6f643c57d57c56d4677bc05f1fca2ef3f249797c, < 5804cb507233ed767a83ac70527b2f6c4566ec75	Fixed in 5804cb507233ed767a83ac70527b2f6c4566ec75
LinuxLinux	Affected ≥ 6f643c57d57c56d4677bc05f1fca2ef3f249797c, < 82fb9da6477d08bdab954dc7bc081a41f2f9cae6	Fixed in 82fb9da6477d08bdab954dc7bc081a41f2f9cae6
LinuxLinux	Affected ≥ 6f643c57d57c56d4677bc05f1fca2ef3f249797c, < 29a7b2614357393b176ef06ba5bc3ff5afc8df69	Fixed in 29a7b2614357393b176ef06ba5bc3ff5afc8df69
LinuxLinux	Affected ≥ 6f643c57d57c56d4677bc05f1fca2ef3f249797c, < 28a6c132b8c6e5eeefa889c4fb43d65b12989d48	Fixed in 28a6c132b8c6e5eeefa889c4fb43d65b12989d48
LinuxLinux	Affected ≥ 6f643c57d57c56d4677bc05f1fca2ef3f249797c, < 5c293a1e1ef0f838772d20ae8afae4cbd87cd3f9	Fixed in 5c293a1e1ef0f838772d20ae8afae4cbd87cd3f9

Description

In the Linux kernel, the following vulnerability has been resolved: xfs: fix a resource leak in xfs_alloc_buftarg() In the error path, call fs_put_dax() to drop the DAX device reference.

References

Community reviews

Loading reviews…