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CVE PROGRAM SOURCE RECORD6.5 Medium

CVE-2024-26886

Bluetooth: af_bluetooth: Fix deadlock

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

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>

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 2b16d960c79abc397f102c3d23d30005b68cb036 to < 60673f442984fe689d4127a5dd4be414247b3d67affected
  • 37f71e2c9f515834841826f4eb68ec33cfb2a1ff to < 0309acebc4b3884bfda332558bb8a1df052f4f39affected
  • 1d576c3a5af850bf11fbd103f9ba11aa6d6061fb to < 64be3c6154886200708da0dfe259705fb992416caffected
  • 2e07e8348ea454615e268222ae3fc240421be768 to < 817e8138ce86001b2fa5c63d6ede756e205a01f7affected
  • 2e07e8348ea454615e268222ae3fc240421be768 to < 2c9e2df022ef8b9d7fac58a04a2ef4ed25288955affected
  • 2e07e8348ea454615e268222ae3fc240421be768 to < f7b94bdc1ec107c92262716b073b3e816d4784fbaffected
  • db1b14eec8c61a20374de9f9c2ddc6c9406a8c42affected
  • 5.15.146 to < 5.15.209affected
  • 6.1.70 to < 6.1.191affected
  • 6.6.9 to < 6.6.23affected
  • 5.10.206 to < 5.11affected

Linux Linux

Default version status: affected

  • 6.7affected
  • 0 to < 6.7unaffected
  • 5.15.209 to ≤ 5.15.*unaffected
  • 6.1.191 to ≤ 6.1.*unaffected
  • 6.6.23 to ≤ 6.6.*unaffected
  • 6.7.11 to ≤ 6.7.*unaffected
  • 6.8.2 to ≤ 6.8.*unaffected
  • 6.9 to ≤ *unaffected

References