CVE-2026-53270

{"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": "2026-10-19T19:57:32.999Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:34:46.621Z"}, "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"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable transition is reached through local IPVS service-edit control paths such as `setsockopt(IP_VS_SO_SET_EDIT)` or IPVS generic netlink; packets exercise the stale scheduler afterward, but the attacker must initiate the local service edit.\nAC:L - The attacker can control both sides of the condition by changing the scheduler and generating new TCP/UDP/SCTP traffic to the service, so this is not dependent on an uncontrollable race.\nPR:L - The legacy setsockopt path checks `CAP_NET_ADMIN` in the socket network namespace, which is reachable by an unprivileged local user via user and network namespaces in plausible deployments.\nUI:N - No victim interaction is needed once the attacker has local access and namespace privileges; the attacker can create/edit the IPVS service and send triggering traffic.\nS:U - The impact is kernel memory corruption within the same host security authority, not a VM, IOMMU, or separate security-scope escape.\nC:H - This is an RCU use-after-free of scheduler-private `svc->sched_data`, and freed scheduler state can be reused and dereferenced by packet scheduling, making high confidentiality impact defensible.\nI:H - Several affected schedulers write through the stale `sched_data` pointer, so the UAF can plausibly become arbitrary kernel memory corruption or control-flow compromise.\nA:H - At minimum the stale scheduler pointer can dereference freed scheduler state during packet processing and crash or panic the kernel."}]}], "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": 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"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"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-53270", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:28:13.169684Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T19:57:32.999Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-53270", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:28:13.169684Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:28:13.967Z"}}], "cna": {"title": "ipvs: clear the svc scheduler ptr early on edit", "metrics": [{"cvssV3_1": {"version": "3.1", "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"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable transition is reached through local IPVS service-edit control paths such as `setsockopt(IP_VS_SO_SET_EDIT)` or IPVS generic netlink; packets exercise the stale scheduler afterward, but the attacker must initiate the local service edit.\nAC:L - The attacker can control both sides of the condition by changing the scheduler and generating new TCP/UDP/SCTP traffic to the service, so this is not dependent on an uncontrollable race.\nPR:L - The legacy setsockopt path checks `CAP_NET_ADMIN` in the socket network namespace, which is reachable by an unprivileged local user via user and network namespaces in plausible deployments.\nUI:N - No victim interaction is needed once the attacker has local access and namespace privileges; the attacker can create/edit the IPVS service and send triggering traffic.\nS:U - The impact is kernel memory corruption within the same host security authority, not a VM, IOMMU, or separate security-scope escape.\nC:H - This is an RCU use-after-free of scheduler-private `svc->sched_data`, and freed scheduler state can be reused and dereferenced by packet scheduling, making high confidentiality impact defensible.\nI:H - Several affected schedulers write through the stale `sched_data` pointer, so the UAF can plausibly become arbitrary kernel memory corruption or control-flow compromise.\nA:H - At minimum the stale scheduler pointer can dereference freed scheduler state during packet processing and crash or panic the kernel."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "05f00505a89acd21f5d0d20f5797dfbc4cf85243", "lessThan": "d10730a1f2caf08088e0db1b19b242f3e6fa5f06", "versionType": "git"}, {"status": "affected", "version": "05f00505a89acd21f5d0d20f5797dfbc4cf85243", "lessThan": "e4feec3174036ba772006be74beee0efa09a9eb8", "versionType": "git"}, {"status": "affected", "version": "05f00505a89acd21f5d0d20f5797dfbc4cf85243", "lessThan": "7d4f5004511757e3984901ffb412fcf858d80ed5", "versionType": "git"}, {"status": "affected", "version": "05f00505a89acd21f5d0d20f5797dfbc4cf85243", "lessThan": "c6376b9b1b4d2bad638256b1b3588e073344ae69", "versionType": "git"}, {"status": "affected", "version": "05f00505a89acd21f5d0d20f5797dfbc4cf85243", "lessThan": "14e4689c113b4c06af1069364ade24fdd7055f33", "versionType": "git"}, {"status": "affected", "version": "05f00505a89acd21f5d0d20f5797dfbc4cf85243", "lessThan": "25918720ba97f974a4f8d433b5a0132c5b43f6f3", "versionType": "git"}, {"status": "affected", "version": "05f00505a89acd21f5d0d20f5797dfbc4cf85243", "lessThan": "19a9493faa4bf3c7bd0a386f30b60b1bb4a3da03", "versionType": "git"}, {"status": "affected", "version": "05f00505a89acd21f5d0d20f5797dfbc4cf85243", "lessThan": "193989cc6d80dd8e0460fb3992e69fa03bf0ff9b", "versionType": "git"}, {"status": "affected", "version": "c803fddd2a95a70873c68dbff42d4c59fd2e674e", "versionType": "git"}, {"status": "affected", "version": "4ec8fb23158797affae7993c15beba080488482f", "versionType": "git"}, {"status": "affected", "version": "3.18.23", "lessThan": "3.19", "versionType": "semver"}, {"status": "affected", "version": "4.1.11", "lessThan": "4.2", "versionType": "semver"}], "programFiles": ["include/net/ip_vs.h", "net/netfilter/ipvs/ip_vs_ctl.c", "net/netfilter/ipvs/ip_vs_sched.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.2"}, {"status": "unaffected", "version": "0", "lessThan": "4.2", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.259", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.210", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.176", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.143", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.94", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.36", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.13", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["include/net/ip_vs.h", "net/netfilter/ipvs/ip_vs_ctl.c", "net/netfilter/ipvs/ip_vs_sched.c"], "defaultStatus": "affected"}], "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"}], "x_generator": {"engine": "bippy-1.2.0"}, "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."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.259", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.210", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.176", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.143", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.94", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.36", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.0.13", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "3.18.23"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.1.11"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:34:46.621Z"}}}, "cveMetadata": {"cveId": "CVE-2026-53270", "state": "PUBLISHED", "dateUpdated": "2026-10-19T19:57:32.999Z", "dateReserved": "2026-06-09T07:44:35.395Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-06-25T08:39:55.830Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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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."}], "id": "CVE-2026-53270", "lastModified": "2026-10-19T20:19:13.970", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53270", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:28:13.169684Z", "version": "2.0.3"}}]}, "published": "2026-06-25T09:16:45.123", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/14e4689c113b4c06af1069364ade24fdd7055f33"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/193989cc6d80dd8e0460fb3992e69fa03bf0ff9b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/19a9493faa4bf3c7bd0a386f30b60b1bb4a3da03"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/25918720ba97f974a4f8d433b5a0132c5b43f6f3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7d4f5004511757e3984901ffb412fcf858d80ed5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c6376b9b1b4d2bad638256b1b3588e073344ae69"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d10730a1f2caf08088e0db1b19b242f3e6fa5f06"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e4feec3174036ba772006be74beee0efa09a9eb8"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: ipvs: clear the svc scheduler ptr early on edit", "id": "2492853", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492853"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel's IP Virtual Server (IPVS) component. During the `ip_vs_edit_service()` operation, the `svc->scheduler` pointer is cleared too late when unbinding an old scheduler. This improper handling allows packets to access previously freed scheduler data, leading to a use-after-free vulnerability. This can result in system instability or a denial of service."], "name": "CVE-2026-53270", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53270\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53270\nhttps://lore.kernel.org/linux-cve-announce/2026062518-CVE-2026-53270-0981@gregkh/T"], "threat_severity": "Moderate"}

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