CVE-2025-38460
atm: clip: Fix potential null-ptr-deref in to_atmarpd().
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 25, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a4c5785feb979cd996a99cfaad8bf353b2e79301 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 70eac9ba7ce25d99c1d99bbf4ddb058940f631f9 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3251ce3979f41bd228f77a7615f9dd616d06a110 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 06935c50cfa3ac57cce80bba67b6d38ec1406e92 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 36caab990b69ef4eec1d81c52a19f080b7daa059 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f58e4270c73e7f086322978d585ea67c8076ce49 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 706cc36477139c1616a9b2b96610a8bb520b7119
Linux / Linux
2.6.12
References
git.kernel.org: https://git.kernel.org/stable/c/a4c5785feb979cd996a99cfaad8bf353b2e79301 git.kernel.org: https://git.kernel.org/stable/c/70eac9ba7ce25d99c1d99bbf4ddb058940f631f9 git.kernel.org: https://git.kernel.org/stable/c/3251ce3979f41bd228f77a7615f9dd616d06a110 git.kernel.org: https://git.kernel.org/stable/c/ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57 git.kernel.org: https://git.kernel.org/stable/c/06935c50cfa3ac57cce80bba67b6d38ec1406e92 git.kernel.org: https://git.kernel.org/stable/c/36caab990b69ef4eec1d81c52a19f080b7daa059 git.kernel.org: https://git.kernel.org/stable/c/f58e4270c73e7f086322978d585ea67c8076ce49 git.kernel.org: https://git.kernel.org/stable/c/706cc36477139c1616a9b2b96610a8bb520b7119 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html