CVE-2024-46800
kernel: sch/netem: fix use after free in netem_dequeue
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 18, 2024
Updated · October 29, 2026
Description
A use-after-free vulnerability was found in the Linux kernel. If netem_dequeue() enqueues a packet to inner qdisc and that qdisc returns __NET_XMIT_STOLEN, the packet is dropped but qdisc_tree_reduce_backlog() is not called to update the parent's q.qlen.
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 don't 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 · 6.6CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CWE-416 · Use After Free