CVE-2024-35820

Published: May 18, 2024Last modified: June 5, 2025

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix io_queue_proc modifying req->flags With multiple poll entries __io_queue_proc() might be running in parallel with poll handlers and possibly task_work, we should not be carelessly modifying req->flags there. io_poll_double_prepare() handles a similar case with locking but it's much easier to move it into __io_arm_poll_handler().

Status

References

• https://git.kernel.org/stable/c/0ecb8919469e6d5c74eea24086b34ce1bda5aef7
• https://git.kernel.org/stable/c/1a8ec63b2b6c91caec87d4e132b1f71b5df342be
• https://git.kernel.org/stable/c/51a490a7f63cae0754120e7c04f4f47920bd48db