CVE-2023-0590: Linux Kernel

Medium severity, CVSS 4.7. EPSS: 0.2% chance of exploitation in the next 30 days.

A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race problem. This flaw leads to a denial of service issue. If patch ebda44da44f6 ("net: sched: fix race condition in qdisc_graft()") not applied yet, then kernel could be affected.

Affected products

• Linux Linux Kernel: before 6.1 (fixed in 6.1); version 6.1 only

Published 2023-03-23. Last modified 2026-06-17.