Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix user-after-free This uses l2cap_chan_hold_unless_zero() after calling __l2cap_get_chan_blah() to prevent the following trace: Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref *kref) Bluetooth: chan 0000000023c4974d Bluetooth: parent 00000000ae861c08 ================================================================== BUG: KASAN: use-after-free in __mutex_waiter_is_first kernel/locking/mutex.c:191 [inline] BUG: KASAN: use-after-free in __mutex_lock_common kernel/locking/mutex.c:671 [inline] BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400 kernel/locking/mutex.c:729 Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3df91ea20e744344100b10ae69a17211fcf5b207 before 11e40d6c0823f699d8ad501e48d1c3ae4be386cd; affected 3df91ea20e744344100b10ae69a17211fcf5b207 before 843fc4e386dd84b806a7f07fb062d8c3a44e5364; affected 3df91ea20e744344100b10ae69a17211fcf5b207 before d91fc2836562f299f34e361e089e9fe154da4f73; affected 3df91ea20e744344100b10ae69a17211fcf5b207 before 7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45; affected 3df91ea20e744344100b10ae69a17211fcf5b207 before 0c108cf3ad386e0084277093b55a351c49e0be27; affected 3df91ea20e744344100b10ae69a17211fcf5b207 before d1e894f950ad48897d1a7cb05909ea29d8c3810e; affected 3df91ea20e744344100b10ae69a17211fcf5b207 before 6ffde6e03085874ae22263ff4cef4869f797e84f; affected 3df91ea20e744344100b10ae69a17211fcf5b207 before 15fc21695eb606bdc5d483b92118ee42610a952d; affected 3df91ea20e744344100b10ae69a17211fcf5b207 before 35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f |
| Linux / Linux | affected 3.4; unaffected 0 before 3.4; unaffected 4.9.331 through 4.9.*; unaffected 4.14.296 through 4.14.*; unaffected 4.19.262 through 4.19.*; unaffected 5.4.220 through 5.4.*; 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/11e40d6c0823f699d8ad501e48d1c3ae4be386cd
- https://git.kernel.org/stable/c/843fc4e386dd84b806a7f07fb062d8c3a44e5364
- https://git.kernel.org/stable/c/d91fc2836562f299f34e361e089e9fe154da4f73
- https://git.kernel.org/stable/c/7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45
- https://git.kernel.org/stable/c/0c108cf3ad386e0084277093b55a351c49e0be27
- https://git.kernel.org/stable/c/d1e894f950ad48897d1a7cb05909ea29d8c3810e
- https://git.kernel.org/stable/c/6ffde6e03085874ae22263ff4cef4869f797e84f
- https://git.kernel.org/stable/c/15fc21695eb606bdc5d483b92118ee42610a952d
- https://git.kernel.org/stable/c/35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f
ADP enrichment
No English description supplied.
No references supplied.