跳转到帖子

Red Hat: CVE-2024-26886: kernel: Bluetooth: af_bluetooth: Fix deadlock (Multiple Advisories)

recommended_posts

发布于
  • Members

Red Hat: CVE-2024-26886: kernel: Bluetooth: af_bluetooth: Fix deadlock (Multiple Advisories)

Severity
5
CVSS
(AV:N/AC:H/Au:S/C:N/I:N/A:C)
Published
04/17/2024
Created
09/20/2024
Added
09/19/2024
Modified
12/05/2024

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>

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2024-26886
  • RHSA-2024:6567
  • RHSA-2024:6744
  • RHSA-2024:6745
  • 查看数 701
  • 已创建
  • 最后回复

参与讨论

你可立刻发布并稍后注册。 如果你有帐户,立刻登录发布帖子。
注意:你的帖子需要版主批准后才能看到。

游客
回帖…