VULNERABILITY INTELLIGENCE
CVE-2021-47123
CVSS score7.8 HIGH
EPSS probability0.22%
CISA KEVNot currently listed
Published2024-03-15
Last modified2026-08-04
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix ltout double free on completion race Always remove linked timeout on io_link_timeout_fn() from the master request link list, otherwise we may get use-after-free when first io_link_timeout_fn() puts linked timeout in the fail path, and then will be found and put on master's free.
Weakness classification
- CWE-415: Double Free
- CWE-416: Use After Free