In the Linux kernel, the following vulnerability has been resolved:

net/sched: act_gate: snapshot parameters with RCU on replace

The gate action can be replaced while the hrtimer callback or dump path is
walking the schedule list.

Convert the parameters to an RCU-protected snapshot and swap updates under
tcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omits
the entry list, preserve the existing schedule so the effective state is
unchanged.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Thu, 19 Mar 2026 00:15:00 +0000


Wed, 18 Mar 2026 10:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: net/sched: act_gate: snapshot parameters with RCU on replace The gate action can be replaced while the hrtimer callback or dump path is walking the schedule list. Convert the parameters to an RCU-protected snapshot and swap updates under tcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omits the entry list, preserve the existing schedule so the effective state is unchanged.
Title net/sched: act_gate: snapshot parameters with RCU on replace
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-03-18T10:05:07.406Z

Reserved: 2026-01-13T15:37:45.989Z

Link: CVE-2026-23245

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-18T11:16:16.437

Modified: 2026-03-18T14:52:44.227

Link: CVE-2026-23245

cve-icon Redhat

Severity :

Publid Date: 2026-03-18T00:00:00Z

Links: CVE-2026-23245 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-03-19T08:56:46Z

Weaknesses

No weakness.