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VulnerabilityPublished Updated

CVE-2025-37837: Linux kernel · iommu/tegra241-cmdqv: Fix warnings due to dmam_free_coherent()

Source GCVE Database

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Authoritative record:CVE-2025-37837· Low

Not known to be exploited · CVSS 5.5 Low.

Data as of 13 Nov 2026, 18:58 UTC

CVSS 3.1 base score
5.5Low
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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 13 Nov 2026.

What to do

AI-suggested

A fix is available that removes the faulty fallback code and relies on devres for proper memory cleanup. Users should update to the Linux kernel version that includes this fix. No additional mitigation is required beyond applying the official patch.

Description

CVE-2025-37837 addresses warnings and potential memory management issues in the Linux kernel's iommu/tegra241-cmdqv driver related to improper use of dmam_free_coherent(). The flaw causes warnings during SMMU driver rollback due to misordered devres callbacks and redundant memory freeing. The fix removes unnecessary fallback code and relies on devres to manage memory cleanup properly.

References

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