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VulnerabilityPublished Updated

CVE-2025-22111: Linux kernel · net: Remove RTNL dance for SIOCBRADDIF and SIOCBRDELIF.

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 10 Nov 2026, 14:47 UTC

Severity
High

Rated High 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 16 Apr 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 10 Nov 2026.

What to do

AI-suggested

A fix has been implemented in the Linux kernel that removes the redundant dev_ioctl() call for SIOCBRADDIF and SIOCBRDELIF ioctls, thereby preventing the race condition and kernel splat. Users should update to the fixed kernel version once available. No other specific mitigations are indicated.

Description

CVE-2025-22111 addresses a race condition in the Linux kernel's network bridge ioctl handling. The vulnerability arises from unnecessary locking (RTNL dance) during SIOCBRADDIF and SIOCBRDELIF ioctl calls, which can cause blocking and potential kernel crashes under RTNL pressure. The fix removes the redundant dev_ioctl() call for these ioctls to prevent deadlocks and splats during concurrent bridge device removal and interface detachment.

References

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