CVE-2026-23245
7.8 HIGHIn the Linux kernel, the following vulnerability has been resolved: net/sched: act_gate: snapshot parameters with RCU on replace The ga...
Published: 2026-03-18 · Last updated: 2026-05-21
Severity and scoring
- CVSS
- 7.8 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-23245
- [Patch]https://git.kernel.org/stable/c/035d0d09d5ab3ed3e93d18cde2b562a6719eea23
- [Patch]https://git.kernel.org/stable/c/04d75529dc0f9be78786162ebab7424af4644df2
- [Patch]https://git.kernel.org/stable/c/58b162e318d0243ad2d7d92456c0873f2494c351
- [Patch]https://git.kernel.org/stable/c/62413a9c3cb183afb9bb6e94dd68caf4e4145f4c
- [Patch]https://git.kernel.org/stable/c/8b1251bbf0f10ac745ed74bad4d3b433caa1eeae
- [Patch]https://git.kernel.org/stable/c/dfc314d7c767e350f78a46a8f8b134f80e8ad432
- [Patch]https://git.kernel.org/stable/c/fc98fd8d214693be91253d9a88cdf8e5e143d124
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