CVE-2024-26886
Published: Apr 17, 2024
Modified: Jun 1, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: af_bluetooth: Fix deadlock Attemting to do sock_lock on .recvmsg may cause a deadlock as shown bellow, so instead of using sock_sock this uses sk_receive_queue.lock on bt_sock_ioctl to avoid the UAF: INFO: task kworker/u9:1:121 blocked for more than 30 seconds. Not tainted 6.7.6-lemon #183 Workqueue: hci0 hci_rx_work Call Trace: <TASK> __schedule+0x37d/0xa00 schedule+0x32/0xe0 __lock_sock+0x68/0xa0 ? __pfx_autoremove_wake_function+0x10/0x10 lock_sock_nested+0x43/0x50 l2cap_sock_recv_cb+0x21/0xa0 l2cap_recv_frame+0x55b/0x30a0 ? psi_task_switch+0xeb/0x270 ? finish_task_switch.isra.0+0x93/0x2a0 hci_rx_work+0x33a/0x3f0 process_one_work+0x13a/0x2f0 worker_thread+0x2f0/0x410 ? __pfx_worker_thread+0x10/0x10 kthread+0xe0/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2c/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1b/0x30 </TASK>
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 2b16d960c79abc397f102c3d23d30005b68cb036 - < 60673f442984fe689d4127a5dd4be414247b3d67affected 1d576c3a5af850bf11fbd103f9ba11aa6d6061fb - < 64be3c6154886200708da0dfe259705fb992416caffected 2e07e8348ea454615e268222ae3fc240421be768 - < 817e8138ce86001b2fa5c63d6ede756e205a01f7affected 2e07e8348ea454615e268222ae3fc240421be768 - < 2c9e2df022ef8b9d7fac58a04a2ef4ed25288955affected 2e07e8348ea454615e268222ae3fc240421be768 - < f7b94bdc1ec107c92262716b073b3e816d4784fb+6 more versions |
Linux | Linux | affected 6.7unaffected 0 - < 6.7unaffected 5.15.209 - <= 5.15.*unaffected 6.6.23 - <= 6.6.*unaffected 6.7.11 - <= 6.7.*+2 more versions |
References
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