{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23245","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.989Z","datePublished":"2026-03-18T10:05:07.406Z","dateUpdated":"2026-05-11T22:03:07.821Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:03:07.821Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_gate: snapshot parameters with RCU on replace\n\nThe gate action can be replaced while the hrtimer callback or dump path is\nwalking the schedule list.\n\nConvert the parameters to an RCU-protected snapshot and swap updates under\ntcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omits\nthe entry list, preserve the existing schedule so the effective state is\nunchanged."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/tc_act/tc_gate.h","net/sched/act_gate.c"],"versions":[{"version":"a51c328df3106663879645680609eb49b3ff6444","lessThan":"fc98fd8d214693be91253d9a88cdf8e5e143d124","status":"affected","versionType":"git"},{"version":"a51c328df3106663879645680609eb49b3ff6444","lessThan":"8b1251bbf0f10ac745ed74bad4d3b433caa1eeae","status":"affected","versionType":"git"},{"version":"a51c328df3106663879645680609eb49b3ff6444","lessThan":"dfc314d7c767e350f78a46a8f8b134f80e8ad432","status":"affected","versionType":"git"},{"version":"a51c328df3106663879645680609eb49b3ff6444","lessThan":"035d0d09d5ab3ed3e93d18cde2b562a6719eea23","status":"affected","versionType":"git"},{"version":"a51c328df3106663879645680609eb49b3ff6444","lessThan":"04d75529dc0f9be78786162ebab7424af4644df2","status":"affected","versionType":"git"},{"version":"a51c328df3106663879645680609eb49b3ff6444","lessThan":"58b162e318d0243ad2d7d92456c0873f2494c351","status":"affected","versionType":"git"},{"version":"a51c328df3106663879645680609eb49b3ff6444","lessThan":"62413a9c3cb183afb9bb6e94dd68caf4e4145f4c","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/tc_act/tc_gate.h","net/sched/act_gate.c"],"versions":[{"version":"5.8","status":"affected"},{"version":"0","lessThan":"5.8","status":"unaffected","versionType":"semver"},{"version":"5.10.253","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"6.1.167","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.130","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.78","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.18","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.8","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.10.253"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.1.167"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.6.130"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.12.78"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.18.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.19.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/fc98fd8d214693be91253d9a88cdf8e5e143d124"},{"url":"https://git.kernel.org/stable/c/8b1251bbf0f10ac745ed74bad4d3b433caa1eeae"},{"url":"https://git.kernel.org/stable/c/dfc314d7c767e350f78a46a8f8b134f80e8ad432"},{"url":"https://git.kernel.org/stable/c/035d0d09d5ab3ed3e93d18cde2b562a6719eea23"},{"url":"https://git.kernel.org/stable/c/04d75529dc0f9be78786162ebab7424af4644df2"},{"url":"https://git.kernel.org/stable/c/58b162e318d0243ad2d7d92456c0873f2494c351"},{"url":"https://git.kernel.org/stable/c/62413a9c3cb183afb9bb6e94dd68caf4e4145f4c"}],"title":"net/sched: act_gate: snapshot parameters with RCU on replace","x_generator":{"engine":"bippy-1.2.0"}}}}