CVE-2025-38460 (GCVE-0-2025-38460)

Vulnerability from cvelistv5 – Published: 2025-07-25 15:27 – Updated: 2026-05-11 21:28
VLAI?
Title
atm: clip: Fix potential null-ptr-deref in to_atmarpd().
Summary
In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix potential null-ptr-deref in to_atmarpd(). atmarpd is protected by RTNL since commit f3a0592b37b8 ("[ATM]: clip causes unregister hang"). However, it is not enough because to_atmarpd() is called without RTNL, especially clip_neigh_solicit() / neigh_ops->solicit() is unsleepable. Also, there is no RTNL dependency around atmarpd. Let's use a private mutex and RCU to protect access to atmarpd in to_atmarpd().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a4c5785feb979cd996a99cfaad8bf353b2e79301 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 70eac9ba7ce25d99c1d99bbf4ddb058940f631f9 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3251ce3979f41bd228f77a7615f9dd616d06a110 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 06935c50cfa3ac57cce80bba67b6d38ec1406e92 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 36caab990b69ef4eec1d81c52a19f080b7daa059 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f58e4270c73e7f086322978d585ea67c8076ce49 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 706cc36477139c1616a9b2b96610a8bb520b7119 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.4.296 , ≤ 5.4.* (semver)
Unaffected: 5.10.240 , ≤ 5.10.* (semver)
Unaffected: 5.15.189 , ≤ 5.15.* (semver)
Unaffected: 6.1.146 , ≤ 6.1.* (semver)
Unaffected: 6.6.99 , ≤ 6.6.* (semver)
Unaffected: 6.12.39 , ≤ 6.12.* (semver)
Unaffected: 6.15.7 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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Sin embargo, esto no es suficiente, ya que to_atmarpd() se llama sin RTNL, especialmente clip_neigh_solicit() / neigh_ops-\u0026gt;solicit() no se puede suspender. Adem\u00e1s, atmarpd no depende de RTNL. 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Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


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