{"api_version":"1","generated_at":"2026-04-20T17:45:18+00:00","cve":"CVE-2026-23245","urls":{"html":"https://cve.report/CVE-2026-23245","api":"https://cve.report/api/cve/CVE-2026-23245.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23245","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23245"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-03-18 11:16:16","updated_at":"2026-04-18 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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":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-04-18T08:57:25.339Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-23245","datePublished":"2026-03-18T10:05:07.406Z","dateReserved":"2026-01-13T15:37:45.989Z","dateUpdated":"2026-04-18T08:57:25.339Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-03-18 11:16:16","lastModifiedDate":"2026-04-18 09:16:14","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"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","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"23245","Ordinal":"1","Title":"net/sched: act_gate: snapshot parameters with RCU on replace","CVE":"CVE-2026-23245","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23245","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"net/sched: act_gate: snapshot parameters with RCU on replace"}]}}}