A vulnerability was found due to missing lock for IOPOLL flaw in io_cqring_event_overflow() in io_uring.c in Linux Kernel. This flaw allows a local attacker with user privilege to trigger a Denial of Service threat.
https://www.debian.org/security/2023/dsa-5492
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e12d7a46f65ae4b7d58a5e0c1cbfa825cf8
Source: Mitre, NVD
Published: 2023-07-23
Updated: 2023-09-10
Base Score: 4.6
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C
Severity: Medium
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H