CVE-2023-53508

Summary

In the Linux kernel, the following vulnerability has been resolved:

ublk: fail to start device if queue setup is interrupted

In ublk_ctrl_start_dev(), if wait_for_completion_interruptible() is interrupted by signal, queues aren't setup successfully yet, so we have to fail UBLK_CMD_START_DEV, otherwise kernel oops can be triggered.

Reported by German when working on qemu-storage-deamon which requires single thread ublk daemon.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux71f28f3136aff5890cd56de78abc673f8393cad9 < 0d5916c439574b18a0734872daa0022b3d6105adaffected
LinuxLinux71f28f3136aff5890cd56de78abc673f8393cad9 < 6ab3e7d424cd413d7a5e976c8a30b4ffa84a65ddaffected
LinuxLinux71f28f3136aff5890cd56de78abc673f8393cad9 < 53e7d08f6d6e214c40db1f51291bb2975c789dc2affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.1.43 <= 6.1.*unaffected
LinuxLinux6.4.8 <= 6.4.*unaffected
LinuxLinux6.5 <= *unaffected

Weaknesses

References