Kernel: local_bh imbalance in seg6_input_core() drop path (incomplete fix for cve-2026-46099) (Red Hat Red Hat Enterprise Linux 10)
En bref
- Source
- CVE.org
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
Description
A flaw was found in Red Hat Enterprise Linux 9 kernel builds. An incomplete backport of the CVE-2026-46099 fix in RHEL 9.6 through 9.10 left a local_bh imbalance in seg6_input_core(), where the drop path returns with bottom halves still disabled. This can lead to softirq starvation and denial of service on systems with SRv6 tunnels configured. Upstream and RHEL 10 are not affected.
Faiblesses (CWE)
- CWE-667 — Improper Locking
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat |
Références européennes
- ENISA EUVD · EUVD-2026-113734
- GCVE · GCVE-0-2026-118593
Produits affectés
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |