CVE-2025-37906

Published: May 22, 2025Last modified: May 22, 2025

Description

In the Linux kernel, the following vulnerability has been resolved: ublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd ublk_cancel_cmd() calls io_uring_cmd_done() to complete uring_cmd, but we may have scheduled task work via io_uring_cmd_complete_in_task() for dispatching request, then kernel crash can be triggered. Fix it by not trying to canceling the command if ublk block request is started.

Status

References

• https://git.kernel.org/stable/c/f40139fde5278d81af3227444fd6e76a76b9506d
• https://git.kernel.org/stable/c/fb2eb9ddf556f93fef45201e1f9d2b8674bcc975