CVE-2026-118593 (GCVE-0-2026-118593)

Vulnerability from cvelistv5 – Published: 2026-10-30 06:41 – Updated: 2026-10-30 06:41
VLAI
Title
Kernel: local_bh imbalance in seg6_input_core() drop path (incomplete fix for cve-2026-46099)
Summary
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.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1077 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-118593 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2563095 issue-trackingx_refsource_REDHAT
Impacted products
Date Public
2026-10-23 19:44
Show details on NVD website
To clipboard 

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