{"id":"CVE-2026-23245","revision":null,"records":[{"revision":"3fe5c4fa7e49446ca07c900a18c0d252","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-23245","aliases":[],"title":"net/sched: act_gate: snapshot parameters with RCU on replace","description":"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.","state":0,"publishedAt":"2026-03-18T10:05:07.406+00:00","modifiedAt":"2026-10-15T01:13:20.381+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"include/net/tc_act/tc_gate.h\",\n \"net/sched/act_gate.c\"\n ],\n \"versions\": [\n {\n \"version\": \"a51c328df3106663879645680609eb49b3ff6444\",\n \"lessThan\": \"fc98fd8d214693be91253d9a88cdf8e5e143d124\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a51c328df3106663879645680609eb49b3ff6444\",\n \"lessThan\": \"8b1251bbf0f10ac745ed74bad4d3b433caa1eeae\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a51c328df3106663879645680609eb49b3ff6444\",\n \"lessThan\": \"dfc314d7c767e350f78a46a8f8b134f80e8ad432\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a51c328df3106663879645680609eb49b3ff6444\",\n \"lessThan\": \"035d0d09d5ab3ed3e93d18cde2b562a6719eea23\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a51c328df3106663879645680609eb49b3ff6444\",\n \"lessThan\": \"04d75529dc0f9be78786162ebab7424af4644df2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a51c328df3106663879645680609eb49b3ff6444\",\n \"lessThan\": \"58b162e318d0243ad2d7d92456c0873f2494c351\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"a51c328df3106663879645680609eb49b3ff6444\",\n \"lessThan\": \"62413a9c3cb183afb9bb6e94dd68caf4e4145f4c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"include/net/tc_act/tc_gate.h\",\n \"net/sched/act_gate.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.8\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.8\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.253\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.167\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.130\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.78\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.18\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.19.8\",\n \"lessThanOrEqual\": \"6.19.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.0\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/fc98fd8d214693be91253d9a88cdf8e5e143d124","https://git.kernel.org/stable/c/8b1251bbf0f10ac745ed74bad4d3b433caa1eeae","https://git.kernel.org/stable/c/dfc314d7c767e350f78a46a8f8b134f80e8ad432","https://git.kernel.org/stable/c/035d0d09d5ab3ed3e93d18cde2b562a6719eea23","https://git.kernel.org/stable/c/04d75529dc0f9be78786162ebab7424af4644df2","https://git.kernel.org/stable/c/58b162e318d0243ad2d7d92456c0873f2494c351","https://git.kernel.org/stable/c/62413a9c3cb183afb9bb6e94dd68caf4e4145f4c"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23245","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23245","identifiers":["CVE-2026-23245"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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