Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: USB: gadget: fix NULL pointer dereference in gadget_dev_ioctl() gadget_dev_ioctl() reads dev->gadget before acquiring dev->lock, but dev->state is checked after acquiring the lock. Therefore a concurrent bind can change the device state between these operations, which can leave ioctl with a stale NULL gadget pointer and causing a NULL pointer dereference at gadget->ops->ioctl. Read dev->gadget while holding dev->lock so that the gadget pointer and device state are sampled consistently.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 8be30959be31b4205e3bdd2e2a6221f3a2ee7ea1; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e8219accce2f6d3502ed71f5b5e854ecf27249a6; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 87cbf9410b12f5c2d659bb01e8ecf6517cb9f28c; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 162178ca83c3de986900385a0477eb539f8e1a7e; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before ebd916fdfefaacbc0e577f7037ec96b31a105e5f; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before c29a83c1ff3f06d5751f6d365b606c9f81ccc4cb; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 64ec019bf9a8b12f53b9f2777d65aadb730b5a84; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before dd0eed9e165b1a6292f49e622e3dd0b7d99b106d |
| Linux / Linux | affected 2.6.12; unaffected 0 before 2.6.12; unaffected 5.10.270 through 5.10.*; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.51 through 6.18.*; unaffected 7.2.5 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/8be30959be31b4205e3bdd2e2a6221f3a2ee7ea1
- https://git.kernel.org/stable/c/e8219accce2f6d3502ed71f5b5e854ecf27249a6
- https://git.kernel.org/stable/c/87cbf9410b12f5c2d659bb01e8ecf6517cb9f28c
- https://git.kernel.org/stable/c/162178ca83c3de986900385a0477eb539f8e1a7e
- https://git.kernel.org/stable/c/ebd916fdfefaacbc0e577f7037ec96b31a105e5f
- https://git.kernel.org/stable/c/c29a83c1ff3f06d5751f6d365b606c9f81ccc4cb
- https://git.kernel.org/stable/c/64ec019bf9a8b12f53b9f2777d65aadb730b5a84
- https://git.kernel.org/stable/c/dd0eed9e165b1a6292f49e622e3dd0b7d99b106d