Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold sco_recv_frame() reads conn->sk under sco_conn_lock() but immediately releases the lock without holding a reference to the socket. A concurrent close() can free the socket between the lock release and the subsequent sk->sk_state access, resulting in a use-after-free. Other functions in the same file (sco_sock_timeout(), sco_conn_del()) correctly use sco_sock_hold() to safely hold a reference under the lock. Fix by using sco_sock_hold() to take a reference before releasing the lock, and adding sock_put() on all exit paths.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 37e18bc8c9a70d77bd099e2273f328b3bc7f6d0daffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < d57384e27d1ebf0047e3f00a6e1181b8be9857a2affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < b0a7da0e3f7442545f071499beb36374714bb9deaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 45aaca995e4a7a05b272a58e7ab2fff4f611b8f1affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 108b81514d8f2535eb16651495cefb2250528db3affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 7197462e90b8ce15caa1ae15d4bc2bb8cd21b11eaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < e76e8f0581ef555eacc11dbb095e602fb30a5361affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 598dbba9919c5e36c54fe1709b557d64120cb94baffected
Linux Linux
Default version status: affected
2.6.12affected0 to < 2.6.12unaffected5.10.265 to ≤ 5.10.*unaffected5.15.203 to ≤ 5.15.*unaffected6.1.168 to ≤ 6.1.*unaffected6.6.131 to ≤ 6.6.*unaffected6.12.80 to ≤ 6.12.*unaffected6.18.21 to ≤ 6.18.*unaffected6.19.11 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/37e18bc8c9a70d77bd099e2273f328b3bc7f6d0d ↗
- https://git.kernel.org/stable/c/d57384e27d1ebf0047e3f00a6e1181b8be9857a2 ↗
- https://git.kernel.org/stable/c/b0a7da0e3f7442545f071499beb36374714bb9de ↗
- https://git.kernel.org/stable/c/45aaca995e4a7a05b272a58e7ab2fff4f611b8f1 ↗
- https://git.kernel.org/stable/c/108b81514d8f2535eb16651495cefb2250528db3 ↗
- https://git.kernel.org/stable/c/7197462e90b8ce15caa1ae15d4bc2bb8cd21b11e ↗
- https://git.kernel.org/stable/c/e76e8f0581ef555eacc11dbb095e602fb30a5361 ↗
- https://git.kernel.org/stable/c/598dbba9919c5e36c54fe1709b557d64120cb94b ↗