Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before a4c5785feb979cd996a99cfaad8bf353b2e79301; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 70eac9ba7ce25d99c1d99bbf4ddb058940f631f9; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 3251ce3979f41bd228f77a7615f9dd616d06a110; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 06935c50cfa3ac57cce80bba67b6d38ec1406e92; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 36caab990b69ef4eec1d81c52a19f080b7daa059; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before f58e4270c73e7f086322978d585ea67c8076ce49; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 706cc36477139c1616a9b2b96610a8bb520b7119 |
| Linux / Linux | affected 2.6.12; unaffected 0 before 2.6.12; unaffected 5.4.296 through 5.4.*; unaffected 5.10.240 through 5.10.*; unaffected 5.15.189 through 5.15.*; unaffected 6.1.146 through 6.1.*; unaffected 6.6.99 through 6.6.*; unaffected 6.12.39 through 6.12.*; unaffected 6.15.7 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a4c5785feb979cd996a99cfaad8bf353b2e79301
- https://git.kernel.org/stable/c/70eac9ba7ce25d99c1d99bbf4ddb058940f631f9
- https://git.kernel.org/stable/c/3251ce3979f41bd228f77a7615f9dd616d06a110
- https://git.kernel.org/stable/c/ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57
- https://git.kernel.org/stable/c/06935c50cfa3ac57cce80bba67b6d38ec1406e92
- https://git.kernel.org/stable/c/36caab990b69ef4eec1d81c52a19f080b7daa059
- https://git.kernel.org/stable/c/f58e4270c73e7f086322978d585ea67c8076ce49
- https://git.kernel.org/stable/c/706cc36477139c1616a9b2b96610a8bb520b7119
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.