CVE-2023-0590

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.

CVSS 3.1

4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2023-03-23

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
• https://lore.kernel.org/all/20221018203258.2793282-1-edumazet%40google.com/
• https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
• https://lore.kernel.org/all/20221018203258.2793282-1-edumazet%40google.com/
• https://cert-portal.siemens.com/productcert/html/ssa-769027.html

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