GHSA-vw2r-ffc4-8xm3HighCVSS 7.8
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_gate:...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (11)
- https://nvd.nist.gov/vuln/detail/CVE-2026-23245
- https://git.kernel.org/stable/c/04d75529dc0f9be78786162ebab7424af4644df2
- https://git.kernel.org/stable/c/58b162e318d0243ad2d7d92456c0873f2494c351
- https://git.kernel.org/stable/c/62413a9c3cb183afb9bb6e94dd68caf4e4145f4c
- https://git.kernel.org/stable/c/035d0d09d5ab3ed3e93d18cde2b562a6719eea23
- https://git.kernel.org/stable/c/8b1251bbf0f10ac745ed74bad4d3b433caa1eeae
- https://git.kernel.org/stable/c/dfc314d7c767e350f78a46a8f8b134f80e8ad432
- https://git.kernel.org/stable/c/fc98fd8d214693be91253d9a88cdf8e5e143d124
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://github.com/advisories/GHSA-vw2r-ffc4-8xm3