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CVE-2026-23245

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected a51c328df3106663879645680609eb49b3ff6444 before fc98fd8d214693be91253d9a88cdf8e5e143d124; affected a51c328df3106663879645680609eb49b3ff6444 before 8b1251bbf0f10ac745ed74bad4d3b433caa1eeae; affected a51c328df3106663879645680609eb49b3ff6444 before dfc314d7c767e350f78a46a8f8b134f80e8ad432; affected a51c328df3106663879645680609eb49b3ff6444 before 035d0d09d5ab3ed3e93d18cde2b562a6719eea23; affected a51c328df3106663879645680609eb49b3ff6444 before 04d75529dc0f9be78786162ebab7424af4644df2; affected a51c328df3106663879645680609eb49b3ff6444 before 58b162e318d0243ad2d7d92456c0873f2494c351; affected a51c328df3106663879645680609eb49b3ff6444 before 62413a9c3cb183afb9bb6e94dd68caf4e4145f4c
Linux / Linuxaffected 5.8; unaffected 0 before 5.8; unaffected 5.10.253 through 5.10.*; unaffected 6.1.167 through 6.1.*; unaffected 6.6.130 through 6.6.*; unaffected 6.12.78 through 6.12.*; unaffected 6.18.18 through 6.18.*; unaffected 6.19.8 through 6.19.*; unaffected 7.0 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

siemens-SADP

No English description supplied.