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CVE-2026-45961VulnerabilityPublished Updated

gfs2_fill_super error path · gfs2: fix memory leaks

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-45961· Medium

Not known to be exploited · fixed in e54229ecf49add8451d5f765a32c86ab4446e06c : update Microsoft when convenient.

Data as of 30 Oct 2026, 11:52 UTC

Severity
Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
EPSS
0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in e54229ecf49add8451d5f765a32c86ab4446e06c, da6f5bbc2e7902f578b503f2a4c3d8d09ca4b102, d049ba2c1723110f82227eaf521427980811169b +7

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 30 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=6.1.16 <6.1.191
  • >=5.10.173 <5.11
  • >=5.15.99 <5.16
  • >=6.2.3 <6.3
Fixed in
  • e54229ecf49add8451d5f765a32c86ab4446e06c
  • da6f5bbc2e7902f578b503f2a4c3d8d09ca4b102
  • d049ba2c1723110f82227eaf521427980811169b
  • 4456be93464a599eac0eb2afa63b5d662e1599d8
  • 6.3
  • 6.1.191
  • 5.16
  • 5.11
  • 4db5e4c8f1103b21005ab9e7fe9a5d2554438b74
  • 1fcca0f021ac8e2d19efddb6a733e8b6d4a3fb72
LinuxLinuxAffected
  • =6.3
Fixed in–

Description

CVE-2026-45961 addresses a memory leak vulnerability in the gfs2_fill_super error path related to Microsoft and Azure Linux 3.0. The vulnerability involves improper memory management during error handling in the gfs2 filesystem code. No CVSS score or detailed impact information is provided.

References

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