Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: avoid deadlocks in iso_sock_timeout iso_sock_timeout() takes lock_sock, so sync disabling the timer while holding that lock may deadlock. iso_sock_timeout() may also run concurrently with iso_conn_del(), which leads to UAF [Task 1] [Task hdev->workqueue] iso_sock_timeout iso_conn_del iso_conn_hold_unless_zero iso_chan_del `------------> iso_conn_put caller frees hcon iso_conn_put iso_conn_free conn->hcon->iso_data = NULL; /* UAF */ Fix the deadlock by removing the disable from the lock_sock sections. Move the timer from iso_conn to iso_pinfo to decouple it from iso_conn which may need to be freed in lock_sock section. Convert some of the clear_timer to disable_timer.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a58d0f5dac322e16cc75334d000666512341bde5 before 16d89a63e08280abeef7218970a3bbd7ca62b021; affected dc26097bdb864a0d5955b9a25e43376ffc1af99b before 82e982f54f962f72646868ddbb2c3bd9ea178568; affected dc26097bdb864a0d5955b9a25e43376ffc1af99b before 3c3d5f85db80145636bb991a6005e2760012b985; affected dc26097bdb864a0d5955b9a25e43376ffc1af99b before 200fa1629c57a3ca2b03d3ca63fd3a9bfd910c43; affected f53e7489273dc2bb307bf50f319b3762d45534f0; affected 6.12.2 before 6.12.103; affected 6.11.11 before 6.12 |
| Linux / Linux | affected 6.13; unaffected 0 before 6.13; unaffected 6.12.103 through 6.12.*; unaffected 6.18.44 through 6.18.*; unaffected 7.1.8 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/16d89a63e08280abeef7218970a3bbd7ca62b021
- https://git.kernel.org/stable/c/82e982f54f962f72646868ddbb2c3bd9ea178568
- https://git.kernel.org/stable/c/3c3d5f85db80145636bb991a6005e2760012b985
- https://git.kernel.org/stable/c/200fa1629c57a3ca2b03d3ca63fd3a9bfd910c43
ADP enrichment
No English description supplied.
No references supplied.