CVE-2024-40905
kernel: ipv6: fix possible race in __fib6_drop_pcpu_from()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 12, 2024
Updated · October 29, 2026
Description
A vulnerability was found in the Linux kernel's IPv6 routing component in the __fib6_drop_pcpu_from() function, resulting in a race condition, this vulnerability occurs when the multiple CPUs access and modify a pointer simultaneously, leading to a potential null pointer dereference.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference