CVE-2024-36286
kernel: netfilter: nfnetlink_queue: acquire rcu_read_lock() in instance_destroy_rcu()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 21, 2024
Updated · October 30, 2026
Description
A flaw was found in the Linux kernel's netfilter component, specifically within the nfnetlink_queue module. A local attacker with low privileges could trigger a race condition by calling nf_reinject() without the required rcu_read_lock() in the instance_destroy_rcu() function. This could lead to suspicious RCU (Read-Copy-Update) usage, potentially resulting in memory corruption and a denial of service (DoS).
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 · 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-667 · Improper Locking