{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53270","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.395Z","datePublished":"2026-06-25T08:39:55.830Z","dateUpdated":"2026-06-28T06:41:14.263Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-28T06:41:14.263Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nipvs: clear the svc scheduler ptr early on edit\n\nip_vs_edit_service() while unbinding the old scheduler clears\nthe svc->scheduler ptr after the scheduler module initiates\nRCU callbacks. This can cause packets to use the old\nscheduler at the time when svc->sched_data is already freed\nafter RCU grace period.\n\nFix it by clearing the ptr early in ip_vs_unbind_scheduler(),\nbefore the done_service method schedules any RCU callbacks.\n\nAlso, if the new scheduler fails to initialize when replacing\nthe old scheduler, try to restore the old scheduler while still\nreturning the error code."}],"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/ip_vs.h","net/netfilter/ipvs/ip_vs_ctl.c","net/netfilter/ipvs/ip_vs_sched.c"],"versions":[{"version":"05f00505a89acd21f5d0d20f5797dfbc4cf85243","lessThan":"d10730a1f2caf08088e0db1b19b242f3e6fa5f06","status":"affected","versionType":"git"},{"version":"05f00505a89acd21f5d0d20f5797dfbc4cf85243","lessThan":"e4feec3174036ba772006be74beee0efa09a9eb8","status":"affected","versionType":"git"},{"version":"05f00505a89acd21f5d0d20f5797dfbc4cf85243","lessThan":"7d4f5004511757e3984901ffb412fcf858d80ed5","status":"affected","versionType":"git"},{"version":"05f00505a89acd21f5d0d20f5797dfbc4cf85243","lessThan":"c6376b9b1b4d2bad638256b1b3588e073344ae69","status":"affected","versionType":"git"},{"version":"05f00505a89acd21f5d0d20f5797dfbc4cf85243","lessThan":"14e4689c113b4c06af1069364ade24fdd7055f33","status":"affected","versionType":"git"},{"version":"05f00505a89acd21f5d0d20f5797dfbc4cf85243","lessThan":"25918720ba97f974a4f8d433b5a0132c5b43f6f3","status":"affected","versionType":"git"},{"version":"05f00505a89acd21f5d0d20f5797dfbc4cf85243","lessThan":"19a9493faa4bf3c7bd0a386f30b60b1bb4a3da03","status":"affected","versionType":"git"},{"version":"05f00505a89acd21f5d0d20f5797dfbc4cf85243","lessThan":"193989cc6d80dd8e0460fb3992e69fa03bf0ff9b","status":"affected","versionType":"git"},{"version":"c803fddd2a95a70873c68dbff42d4c59fd2e674e","status":"affected","versionType":"git"},{"version":"4ec8fb23158797affae7993c15beba080488482f","status":"affected","versionType":"git"},{"version":"3.18.23","lessThan":"3.19","status":"affected","versionType":"semver"},{"version":"4.1.11","lessThan":"4.2","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/ip_vs.h","net/netfilter/ipvs/ip_vs_ctl.c","net/netfilter/ipvs/ip_vs_sched.c"],"versions":[{"version":"4.2","status":"affected"},{"version":"0","lessThan":"4.2","status":"unaffected","versionType":"semver"},{"version":"5.10.259","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.210","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.176","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.143","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.94","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.36","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.13","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","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":"4.2","versionEndExcluding":"5.10.259"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.15.210"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.6.143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.12.94"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.18.36"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"7.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"7.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18.23"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.1.11"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/d10730a1f2caf08088e0db1b19b242f3e6fa5f06"},{"url":"https://git.kernel.org/stable/c/e4feec3174036ba772006be74beee0efa09a9eb8"},{"url":"https://git.kernel.org/stable/c/7d4f5004511757e3984901ffb412fcf858d80ed5"},{"url":"https://git.kernel.org/stable/c/c6376b9b1b4d2bad638256b1b3588e073344ae69"},{"url":"https://git.kernel.org/stable/c/14e4689c113b4c06af1069364ade24fdd7055f33"},{"url":"https://git.kernel.org/stable/c/25918720ba97f974a4f8d433b5a0132c5b43f6f3"},{"url":"https://git.kernel.org/stable/c/19a9493faa4bf3c7bd0a386f30b60b1bb4a3da03"},{"url":"https://git.kernel.org/stable/c/193989cc6d80dd8e0460fb3992e69fa03bf0ff9b"}],"title":"ipvs: clear the svc scheduler ptr early on edit","x_generator":{"engine":"bippy-1.2.0"}}}}