CVE-2026-23245
net/sched: act_gate: snapshot parameters with RCU on replace
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Mar 18, 2026 |
| Last Updated | Apr 13, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new high vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
a51c328df3106663879645680609eb49b3ff6444 < 8b1251bbf0f10ac745ed74bad4d3b433caa1eeae a51c328df3106663879645680609eb49b3ff6444 < dfc314d7c767e350f78a46a8f8b134f80e8ad432 a51c328df3106663879645680609eb49b3ff6444 < 035d0d09d5ab3ed3e93d18cde2b562a6719eea23 a51c328df3106663879645680609eb49b3ff6444 < 04d75529dc0f9be78786162ebab7424af4644df2 a51c328df3106663879645680609eb49b3ff6444 < 58b162e318d0243ad2d7d92456c0873f2494c351 a51c328df3106663879645680609eb49b3ff6444 < 62413a9c3cb183afb9bb6e94dd68caf4e4145f4c
Linux / Linux
5.8
References
git.kernel.org: https://git.kernel.org/stable/c/8b1251bbf0f10ac745ed74bad4d3b433caa1eeae git.kernel.org: https://git.kernel.org/stable/c/dfc314d7c767e350f78a46a8f8b134f80e8ad432 git.kernel.org: https://git.kernel.org/stable/c/035d0d09d5ab3ed3e93d18cde2b562a6719eea23 git.kernel.org: https://git.kernel.org/stable/c/04d75529dc0f9be78786162ebab7424af4644df2 git.kernel.org: https://git.kernel.org/stable/c/58b162e318d0243ad2d7d92456c0873f2494c351 git.kernel.org: https://git.kernel.org/stable/c/62413a9c3cb183afb9bb6e94dd68caf4e4145f4c