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VulnerabilityPublished Updated

CVE-2025-38656: Linux kernel · wifi: iwlwifi: Fix error code in iwl_op_mode_dvm_start()

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High · fixed in f95598a133a905fd937354ad902773d05593b8b9 : patch Linux kernel soon.

Data as of 26 Oct 2026, 13:47 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in f95598a133a905fd937354ad902773d05593b8b9, cf80c02a9fdb6c5bc8508beb6a0f6a1294fc32f6, 991e2066f6009d3cb898413058c62dbcc92bd6d2 +8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=5.4.297 <5.5
  • >=5.10.241 <5.11
  • >=5.15.190 <5.16
  • >=6.1.148 <6.2
Fixed in
  • f95598a133a905fd937354ad902773d05593b8b9
  • cf80c02a9fdb6c5bc8508beb6a0f6a1294fc32f6
  • 991e2066f6009d3cb898413058c62dbcc92bd6d2
  • 6.2
  • 5c432da1ee191e9f7830dd516456706063d7bec3
  • 5.16
  • 5.11
  • 5.5
  • 1d068272c21d886d06526454b68368100ba0a720
LinuxLinuxAffected
  • >=6.12.42 <6.12.114
Fixed in
  • 6.12.114
LinuxLinuxAffected
  • >=6.6.102 <6.6.160
Fixed in
  • 6.6.160

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: Fix error code in iwl_op_mode_dvm_start() Preserve the error code if iwl_setup_deferred_work() fails. The current code returns ERR_PTR(0) (which is NULL) on this path. I believe the missing error code potentially leads to a use after free involving debugfs.

References

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