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VulnerabilityPublished Updated

CVE-2025-37888: Linux kernel · net/mlx5: Fix null-ptr-deref in mlx5_create_{inner_,}ttc_table()

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 5 Nov 2026, 22:03 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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 May 2025

  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 5 Nov 2026.

What to do

AI-suggested

A fix has been implemented in the Linux kernel to add NULL checks in the affected functions. Users should update to the fixed kernel version once available. Patch status is not explicitly confirmed in the input; therefore, check the official Linux kernel advisories for the exact fixed versions and apply updates accordingly.

Description

A null pointer dereference vulnerability in the Linux kernel's mlx5 driver was fixed by adding NULL checks in the mlx5_create_inner_ttc_table() and mlx5_create_ttc_table() functions. This prevents potential kernel crashes caused by dereferencing a NULL pointer returned from mlx5_get_flow_namespace().

References

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