cve/2021/CVE-2021-47123.md

CVE-2021-47123

Description

In the Linux kernel, the following vulnerability has been resolved:io_uring: fix ltout double free on completion raceAlways remove linked timeout on io_link_timeout_fn() from the masterrequest link list, otherwise we may get use-after-free when firstio_link_timeout_fn() puts linked timeout in the fail path, and thenwill be found and put on master's free.

POC

Reference

No PoCs from references.

Github

• https://github.com/NaInSec/CVE-LIST