Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure syzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1], for rcu_sync_enter() is called without rcu_sync_init() due to hci_uart_tty_open() ignoring percpu_init_rwsem() failure. While we are at it, fix that hci_uart_register_device() ignores percpu_init_rwsem() failure and hci_uart_unregister_device() does not call percpu_free_rwsem().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 before d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d; affected 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 before b8917dce2134739b39bc0a5648b18427f2cad569; affected 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 before 75b2c71ea581c7bb1303860d89366a42ad0506d2; affected 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 before 98ce10f3f345e61fc6c83bff9cd11cda252b05ac; affected 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 before 3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1; affected f6ec33f6bd3723a8146768106434ef6ab3d9d990; affected 4a53c4e84ace1bc75157a7281af3fe8f5b19d08c; affected 4.14.63 before 4.15 |
| Linux / Linux | affected 4.15; unaffected 0 before 4.15; unaffected 5.10.150 through 5.10.*; unaffected 5.15.75 through 5.15.*; unaffected 5.19.17 through 5.19.*; unaffected 6.0.3 through 6.0.*; unaffected 6.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d
- https://git.kernel.org/stable/c/b8917dce2134739b39bc0a5648b18427f2cad569
- https://git.kernel.org/stable/c/75b2c71ea581c7bb1303860d89366a42ad0506d2
- https://git.kernel.org/stable/c/98ce10f3f345e61fc6c83bff9cd11cda252b05ac
- https://git.kernel.org/stable/c/3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1
ADP enrichment
No English description supplied.
No references supplied.