Bluetooth: MGMT: Fix possible crash on mgmt_index_removed
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.2%
exploitation probability
0.2%top 86% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: MGMT: Fix possible crash on mgmt_index_removed
If mgmt_index_removed is called while there are commands queued on
cmd_sync it could lead to crashes like the bellow trace:
0x0000053D: __list_del_entry_valid_or_report+0x98/0xdc
0x0000053D: mgmt_pending_remove+0x18/0x58 [bluetooth]
0x0000053E: mgmt_remove_adv_monitor_complete+0x80/0x108 [bluetooth]
0x0000053E: hci_cmd_sync_work+0xbc/0x164 [bluetooth]
So while handling mgmt_index_removed this attempts to dequeue
commands passed as user_data to cmd_sync.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/0cc47233af35fb5f10b5e6a027cb4ccd480caf9ahttps://git.kernel.org/stable/c/19b40ca62607cef78369549d1af091f2fd558931https://git.kernel.org/stable/c/4883296505aa7e4863c6869b689afb6005633b23https://git.kernel.org/stable/c/8c3f7943a29145d8a2d8e24893762f7673323eaehttps://git.kernel.org/stable/c/f53e1c9c726d83092167f2226f32bd3b73f26c21https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html