CVE-2024-36012
Medium
Elevated severity or exploit probability.
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2024-05-23 — Published (NVD)
- 2026-08-04 — Last modified (NVD)
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: msft: fix slab-use-after-free in msft_do_close() Tying the msft->data lifetime to hdev by freeing it in hci_release_dev() to fix the following case: [use] msft_do_close() msft = hdev->msft_data; if (!msft) ...(1) <- passed. return; mutex_lock(&msft->filter_lock); ...(4) <- used after freed. [free] msft_unregister() msft = hdev->msft_data; hdev->msft_data = NULL; ...(2) kfree(msft); ...(3) <- msft is freed. ================================================================== BUG: KASAN: slab-use-after-free in __mutex_lock_common kernel/locking/mutex.c:587 [inline] BUG: KASAN: slab-use-after-free in __mutex_lock+0x8f/0xc30 kernel/locking/mutex.c:752 Read of size 8 at addr ffff888106cbbca8 by task kworker/u5:2/309
Affected
References
- https://git.kernel.org/stable/c/10f9f426ac6e752c8d87bf4346930ba347aaabac
- https://git.kernel.org/stable/c/4f1de02de07748da80a8178879bc7a1df37fdf56
- https://git.kernel.org/stable/c/a85a60e62355e3bf4802dead7938966824b23940
- https://git.kernel.org/stable/c/e3880b531b68f98d3941d83f2f6dd11cf4fd6b76
- https://git.kernel.org/stable/c/10f9f426ac6e752c8d87bf4346930ba347aaabac
- https://git.kernel.org/stable/c/4f1de02de07748da80a8178879bc7a1df37fdf56
- https://git.kernel.org/stable/c/a85a60e62355e3bf4802dead7938966824b23940
- https://git.kernel.org/stable/c/e3880b531b68f98d3941d83f2f6dd11cf4fd6b76