CVE-2022-50339 Bluetooth: avoid hci_dev_test_and_set_flag() in mgmt_init_hdev()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: avoid hcidevtestandsetflag in mgmtinithdev syzbot is again reporting attempt to cancel uninitialized work at mgmtindexremoved 1, for setting of HCIMGMT flag from mgmtinithdev from hcimgmtcmd from hcisocksendmsg can rac...

CVE-2022-50339

CVE-2022-50339 : In the Linux kernel Bluetooth stack, a race exists between mgmt_init_hdev() and mgmt_index_removed() where the HCI_MGMT flag testing/setting can race against testing due to missing serialization (hci_dev_lock()). The fix splits hci_dev_test_and_set_flag() into hci_dev_test_flag()...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a race condition between the HCIMGMT flag setting and the initialization of a work queue, which could lead t...