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>
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-227.239 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < 5.15.0-117.127 | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < 6.8.0-35.35 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1170.183 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < 5.15.0-1066.72 | UNKNOWN |
ubuntu | 24.04 | noarch | linux-aws | < 6.8.0-1009.9 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < any | UNKNOWN |
git.kernel.org/linus/f7b94bdc1ec107c92262716b073b3e816d4784fb (6.9-rc1)
git.kernel.org/stable/c/2c9e2df022ef8b9d7fac58a04a2ef4ed25288955
git.kernel.org/stable/c/64be3c6154886200708da0dfe259705fb992416c
git.kernel.org/stable/c/817e8138ce86001b2fa5c63d6ede756e205a01f7
git.kernel.org/stable/c/cb8adca52f306563d958a863bb0cbae9c184d1ae
git.kernel.org/stable/c/f7b94bdc1ec107c92262716b073b3e816d4784fb
launchpad.net/bugs/cve/CVE-2024-26886
nvd.nist.gov/vuln/detail/CVE-2024-26886
security-tracker.debian.org/tracker/CVE-2024-26886
ubuntu.com/security/notices/USN-6816-1
ubuntu.com/security/notices/USN-6817-1
ubuntu.com/security/notices/USN-6817-2
ubuntu.com/security/notices/USN-6817-3
ubuntu.com/security/notices/USN-6878-1
ubuntu.com/security/notices/USN-6923-1
ubuntu.com/security/notices/USN-6926-1
www.cve.org/CVERecord?id=CVE-2024-26886