Description
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
Product status
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 11e40d6c0823f699d8ad501e48d1c3ae4be386cd
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 843fc4e386dd84b806a7f07fb062d8c3a44e5364
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before d91fc2836562f299f34e361e089e9fe154da4f73
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 0c108cf3ad386e0084277093b55a351c49e0be27
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before d1e894f950ad48897d1a7cb05909ea29d8c3810e
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 6ffde6e03085874ae22263ff4cef4869f797e84f
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 15fc21695eb606bdc5d483b92118ee42610a952d
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f
4.9.331 (semver)
4.14.296 (semver)
4.19.262 (semver)
5.4.220 (semver)
5.10.150 (semver)
5.15.75 (semver)
5.19.17 (semver)
6.0.3 (semver)
6.1 (original_commit_for_fix)
References
git.kernel.org/...c/11e40d6c0823f699d8ad501e48d1c3ae4be386cd
git.kernel.org/...c/843fc4e386dd84b806a7f07fb062d8c3a44e5364
git.kernel.org/...c/d91fc2836562f299f34e361e089e9fe154da4f73
git.kernel.org/...c/7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45
git.kernel.org/...c/0c108cf3ad386e0084277093b55a351c49e0be27
git.kernel.org/...c/d1e894f950ad48897d1a7cb05909ea29d8c3810e
git.kernel.org/...c/6ffde6e03085874ae22263ff4cef4869f797e84f
git.kernel.org/...c/15fc21695eb606bdc5d483b92118ee42610a952d
git.kernel.org/...c/35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f
