Skip to main content
cve.nowby Sazabi
← All vulnerabilities
CVE-2026-23245

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.253, 6.1.167, 6.6.130, 6.12.78, 6.18.18, and 1 more
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From a51c328df3106663879645680609eb49b3ff6444 · fixed in fc98fd8d214693be91253d9a88cdf8e5e143d124; From a51c328df3106663879645680609eb49b3ff6444 · fixed in 8b1251bbf0f10ac745ed74bad4d3b433caa1eeae; From a51c328df3106663879645680609eb49b3ff6444 · fixed in dfc314d7c767e350f78a46a8f8b134f80e8ad432; From a51c328df3106663879645680609eb49b3ff6444 · fixed in 035d0d09d5ab3ed3e93d18cde2b562a6719eea23; From a51c328df3106663879645680609eb49b3ff6444 · fixed in 04d75529dc0f9be78786162ebab7424af4644df2; From a51c328df3106663879645680609eb49b3ff6444 · fixed in 58b162e318d0243ad2d7d92456c0873f2494c351; From a51c328df3106663879645680609eb49b3ff6444 · fixed in 62413a9c3cb183afb9bb6e94dd68caf4e4145f4c

  • Linux Linux

    5.8

  • KernelLinux

    From 5.8.0 · fixed in 5.10.253; From 5.11.0 · fixed in 6.1.167; From 6.2.0 · fixed in 6.6.130; From 6.7.0 · fixed in 6.12.78; From 6.13.0 · fixed in 6.18.18; From 6.19.0 · fixed in 6.19.8

References 7

git.kernel.org