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VulnerabilityPublished Updated

CVE-2026-31594: Linux kernel · PCI: endpoint: pci-epf-vntb: Remove duplicate resource teardown

Affects Linux kernelSource GCVE Database

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Not known to be exploited · fixed in 5.15.153 : update Linux kernel when convenient.

Data as of 12 Nov 2026, 03:33 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
Patch
Available – fixed in 5.15.153

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Apr 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 11 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Linux LinuxAffected
  • =5.15.153
Fixed in–

AI-suggested

A fix is available in Linux kernel version 5.15.153 that removes the duplicate resource teardown. Users should update to this or a later patched kernel version to remediate the issue.

Description

A vulnerability in the Linux kernel's PCI endpoint driver pci-epf-vntb causes a kernel oops due to duplicate resource teardown. The function epf_ntb_epc_destroy() redundantly performs teardown operations that the caller is also expected to perform, leading to a kernel crash when link operations fail. This issue has been resolved by removing the duplicate teardown and adjusting reference counting.

References

Community reviews

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