CVE-2026-72450

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in addr_match if prefixlen > 128 (prevents overflow)."}], "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 bug is armed via NETLINK_XFRM (XFRM_MSG_NEWSA with XFRM_STATE_AF_UNSPEC) in xfrm_user_rcv_msg(), and per kernel CNA guidance xfrm/netlink configuration is Local even though xfrm_selector_match() is later hit from IPv4/IPv6 packet processing in __xfrm_policy_check() and xfrm_state_look_at().\nAC:L - The attacker fully controls the malformed SA selector (AF_UNSPEC with prefixlen up to 255) and can deterministically trigger matching by sending or receiving IPv4/IPv6 traffic through xfrm; no race, victim state, or memory layout outside attacker control is required.\nPR:L - xfrm_user_rcv_msg() requires netlink_net_capable(CAP_NET_ADMIN), evaluated against the socket net namespace user_ns via ns_capable(); an unprivileged local user obtains CAP_NET_ADMIN with unshare -Urn and can install the poisoned SA and matching policy in that namespace.\nUI:N - The attacker performs the entire sequence\u2014installing the XFRM SA/policy over netlink and generating matching traffic\u2014with no action required from any other user, administrator, or victim.\nS:U - The shift-out-of-bounds and out-of-bounds memcmp reads occur entirely within kernel xfrm selector matching on the same host; no VM escape, IOMMU bypass, or cross-security-authority boundary is crossed.\nC:H - addr4_match() performs an undefined left-shift when prefixlen>32 on IPv4 flows, and addr_match() can memcmp() up to (prefixlen>>5)<<2 bytes past 16-byte selector/flow addresses when prefixlen>128 on IPv6, leaking adjacent kernel memory per CNA OOB-read guidance.\nI:H - C11 undefined-behavior shifts in hot-path packet classification and unchecked prefix comparisons can corrupt mask/offset arithmetic and selector-match control flow, giving attacker-influenced kernel behavior exploitable for integrity compromise per CNA memory-unsafe-operation guidance.\nA:H - syzbot reproduced UBSAN shift-out-of-bounds in xfrm_selector_match(), and undefined shifts plus out-of-bounds reads in the xfrm input/policy-check path can provoke kernel oops/panic (especially with panic_on_warn/KASAN), satisfying CNA guidance that kernel crashes are High availability impact."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/net/xfrm.h", "net/xfrm/xfrm_policy.c"], "versions": [{"version": "8df5cd51fd70c33aa1776e5cbcd82b0a86649d73", "lessThan": "87a5bbccc7ff4edb3f42fea387124237d2ba91ee", "status": "affected", "versionType": "git"}, {"version": "2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71", "lessThan": "bd7f202cf77556cff59f68dc30e4cdf40cb6e33b", "status": "affected", "versionType": "git"}, {"version": "bce1afaa212ec380bf971614f70909a27882b862", "lessThan": "a3968ad4195d72c8fddcc6c0ef39da95ac98711a", "status": "affected", "versionType": "git"}, {"version": "7d9868180bd1e4cf37e7c5067362658971162366", "lessThan": "efa9e3b9f3dea2e1ea4c7edf4edc863faef85986", "status": "affected", "versionType": "git"}, {"version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "lessThan": "78783fefdc8f36879b1a17efa0d3195ea5f2dc5f", "status": "affected", "versionType": "git"}, {"version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "lessThan": "6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe", "status": "affected", "versionType": "git"}, {"version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "lessThan": "5a03a2ee17e8259dde631ed84fd8322db06cb2ae", "status": "affected", "versionType": "git"}, {"version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "lessThan": "40f0b1047918539f0b0f795ac65e35336b4c2c78", "status": "affected", "versionType": "git"}, {"version": "f31398570acf0f0804c644006f7bfa9067106b0a", "status": "affected", "versionType": "git"}, {"version": "401ad99a5ae7180dd9449eac104cb755f442e7f3", "status": "affected", "versionType": "git"}, {"version": "e68dd80ba498265d2266b12dc3459164f4ff0c4a", "status": "affected", "versionType": "git"}, {"version": "5.10.229", "lessThan": "5.10.261", "status": "affected", "versionType": "semver"}, {"version": "5.15.170", "lessThan": "5.15.212", "status": "affected", "versionType": "semver"}, {"version": "6.1.115", "lessThan": "6.1.178", "status": "affected", "versionType": "semver"}, {"version": "6.6.59", "lessThan": "6.6.145", "status": "affected", "versionType": "semver"}, {"version": "4.19.323", "lessThan": "4.20", "status": "affected", "versionType": "semver"}, {"version": "5.4.285", "lessThan": "5.5", "status": "affected", "versionType": "semver"}, {"version": "6.11.6", "lessThan": "6.12", "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/xfrm.h", "net/xfrm/xfrm_policy.c"], "versions": [{"version": "6.12", "status": "affected"}, {"version": "0", "lessThan": "6.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.261", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "5.10.229", "versionEndExcluding": "5.10.261"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.170", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.115", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.59", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "7.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.323"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.285"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11.6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/87a5bbccc7ff4edb3f42fea387124237d2ba91ee"}, {"url": "https://git.kernel.org/stable/c/bd7f202cf77556cff59f68dc30e4cdf40cb6e33b"}, {"url": "https://git.kernel.org/stable/c/a3968ad4195d72c8fddcc6c0ef39da95ac98711a"}, {"url": "https://git.kernel.org/stable/c/efa9e3b9f3dea2e1ea4c7edf4edc863faef85986"}, {"url": "https://git.kernel.org/stable/c/78783fefdc8f36879b1a17efa0d3195ea5f2dc5f"}, {"url": "https://git.kernel.org/stable/c/6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe"}, {"url": "https://git.kernel.org/stable/c/5a03a2ee17e8259dde631ed84fd8322db06cb2ae"}, {"url": "https://git.kernel.org/stable/c/40f0b1047918539f0b0f795ac65e35336b4c2c78"}], "title": "xfrm: validate selector family and prefixlen during match", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-72450", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T18:50:15.343640Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T18:55:24.828Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-72450", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T18:50:15.343640Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T18:50:15.903Z"}}], "cna": {"title": "xfrm: validate selector family and prefixlen during match", "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 bug is armed via NETLINK_XFRM (XFRM_MSG_NEWSA with XFRM_STATE_AF_UNSPEC) in xfrm_user_rcv_msg(), and per kernel CNA guidance xfrm/netlink configuration is Local even though xfrm_selector_match() is later hit from IPv4/IPv6 packet processing in __xfrm_policy_check() and xfrm_state_look_at().\nAC:L - The attacker fully controls the malformed SA selector (AF_UNSPEC with prefixlen up to 255) and can deterministically trigger matching by sending or receiving IPv4/IPv6 traffic through xfrm; no race, victim state, or memory layout outside attacker control is required.\nPR:L - xfrm_user_rcv_msg() requires netlink_net_capable(CAP_NET_ADMIN), evaluated against the socket net namespace user_ns via ns_capable(); an unprivileged local user obtains CAP_NET_ADMIN with unshare -Urn and can install the poisoned SA and matching policy in that namespace.\nUI:N - The attacker performs the entire sequence\u2014installing the XFRM SA/policy over netlink and generating matching traffic\u2014with no action required from any other user, administrator, or victim.\nS:U - The shift-out-of-bounds and out-of-bounds memcmp reads occur entirely within kernel xfrm selector matching on the same host; no VM escape, IOMMU bypass, or cross-security-authority boundary is crossed.\nC:H - addr4_match() performs an undefined left-shift when prefixlen>32 on IPv4 flows, and addr_match() can memcmp() up to (prefixlen>>5)<<2 bytes past 16-byte selector/flow addresses when prefixlen>128 on IPv6, leaking adjacent kernel memory per CNA OOB-read guidance.\nI:H - C11 undefined-behavior shifts in hot-path packet classification and unchecked prefix comparisons can corrupt mask/offset arithmetic and selector-match control flow, giving attacker-influenced kernel behavior exploitable for integrity compromise per CNA memory-unsafe-operation guidance.\nA:H - syzbot reproduced UBSAN shift-out-of-bounds in xfrm_selector_match(), and undefined shifts plus out-of-bounds reads in the xfrm input/policy-check path can provoke kernel oops/panic (especially with panic_on_warn/KASAN), satisfying CNA guidance that kernel crashes are High availability impact."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "8df5cd51fd70c33aa1776e5cbcd82b0a86649d73", "lessThan": "87a5bbccc7ff4edb3f42fea387124237d2ba91ee", "versionType": "git"}, {"status": "affected", "version": "2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71", "lessThan": "bd7f202cf77556cff59f68dc30e4cdf40cb6e33b", "versionType": "git"}, {"status": "affected", "version": "bce1afaa212ec380bf971614f70909a27882b862", "lessThan": "a3968ad4195d72c8fddcc6c0ef39da95ac98711a", "versionType": "git"}, {"status": "affected", "version": "7d9868180bd1e4cf37e7c5067362658971162366", "lessThan": "efa9e3b9f3dea2e1ea4c7edf4edc863faef85986", "versionType": "git"}, {"status": "affected", "version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "lessThan": "78783fefdc8f36879b1a17efa0d3195ea5f2dc5f", "versionType": "git"}, {"status": "affected", "version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "lessThan": "6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe", "versionType": "git"}, {"status": "affected", "version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "lessThan": "5a03a2ee17e8259dde631ed84fd8322db06cb2ae", "versionType": "git"}, {"status": "affected", "version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "lessThan": "40f0b1047918539f0b0f795ac65e35336b4c2c78", "versionType": "git"}, {"status": "affected", "version": "f31398570acf0f0804c644006f7bfa9067106b0a", "versionType": "git"}, {"status": "affected", "version": "401ad99a5ae7180dd9449eac104cb755f442e7f3", "versionType": "git"}, {"status": "affected", "version": "e68dd80ba498265d2266b12dc3459164f4ff0c4a", "versionType": "git"}, {"status": "affected", "version": "5.10.229", "lessThan": "5.10.261", "versionType": "semver"}, {"status": "affected", "version": "5.15.170", "lessThan": "5.15.212", "versionType": "semver"}, {"status": "affected", "version": "6.1.115", "lessThan": "6.1.178", "versionType": "semver"}, {"status": "affected", 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"6.1.*"}, {"status": "unaffected", "version": "6.6.145", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.97", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.40", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.5", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["include/net/xfrm.h", "net/xfrm/xfrm_policy.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/87a5bbccc7ff4edb3f42fea387124237d2ba91ee"}, {"url": "https://git.kernel.org/stable/c/bd7f202cf77556cff59f68dc30e4cdf40cb6e33b"}, {"url": "https://git.kernel.org/stable/c/a3968ad4195d72c8fddcc6c0ef39da95ac98711a"}, {"url": "https://git.kernel.org/stable/c/efa9e3b9f3dea2e1ea4c7edf4edc863faef85986"}, {"url": "https://git.kernel.org/stable/c/78783fefdc8f36879b1a17efa0d3195ea5f2dc5f"}, {"url": "https://git.kernel.org/stable/c/6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe"}, {"url": "https://git.kernel.org/stable/c/5a03a2ee17e8259dde631ed84fd8322db06cb2ae"}, {"url": "https://git.kernel.org/stable/c/40f0b1047918539f0b0f795ac65e35336b4c2c78"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: validate selector family and prefixlen during match\n\nsyzbot reported a shift-out-of-bounds in xfrm_selector_match()\ndue to AF_UNSPEC selector with large prefixlen (e.g. 128) matched\nagainst IPv4 flow (when XFRM_STATE_AF_UNSPEC is set).\n\nFix this by:\n\n- Rejecting mismatched families in xfrm_selector_match.\n- Returning false in addr4_match if prefixlen > 32.\n- Returning false in addr_match if prefixlen > 128 (prevents overflow)."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": 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"Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["include/net/xfrm.h", "net/xfrm/xfrm_policy.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "87a5bbccc7ff4edb3f42fea387124237d2ba91ee", "status": "affected", "version": "8df5cd51fd70c33aa1776e5cbcd82b0a86649d73", "versionType": "git"}, {"lessThan": "bd7f202cf77556cff59f68dc30e4cdf40cb6e33b", "status": "affected", "version": "2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71", "versionType": "git"}, {"lessThan": "a3968ad4195d72c8fddcc6c0ef39da95ac98711a", "status": "affected", "version": "bce1afaa212ec380bf971614f70909a27882b862", "versionType": "git"}, {"lessThan": "efa9e3b9f3dea2e1ea4c7edf4edc863faef85986", "status": "affected", "version": "7d9868180bd1e4cf37e7c5067362658971162366", "versionType": "git"}, {"lessThan": "78783fefdc8f36879b1a17efa0d3195ea5f2dc5f", "status": "affected", "version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "versionType": "git"}, {"lessThan": "6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe", "status": "affected", "version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "versionType": "git"}, {"lessThan": "5a03a2ee17e8259dde631ed84fd8322db06cb2ae", "status": "affected", "version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "versionType": "git"}, {"lessThan": "40f0b1047918539f0b0f795ac65e35336b4c2c78", "status": "affected", "version": "3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563", "versionType": "git"}, {"status": "affected", "version": "f31398570acf0f0804c644006f7bfa9067106b0a", "versionType": "git"}, {"status": "affected", "version": "401ad99a5ae7180dd9449eac104cb755f442e7f3", "versionType": "git"}, {"status": "affected", "version": "e68dd80ba498265d2266b12dc3459164f4ff0c4a", "versionType": "git"}, {"lessThan": "5.10.261", "status": "affected", "version": "5.10.229", "versionType": "semver"}, {"lessThan": "5.15.212", "status": "affected", "version": "5.15.170", "versionType": "semver"}, {"lessThan": "6.1.178", "status": "affected", "version": "6.1.115", "versionType": "semver"}, {"lessThan": "6.6.145", "status": "affected", "version": "6.6.59", "versionType": "semver"}, {"lessThan": "4.20", "status": "affected", "version": "4.19.323", "versionType": "semver"}, {"lessThan": "5.5", "status": "affected", "version": "5.4.285", "versionType": "semver"}, {"lessThan": "6.12", "status": "affected", "version": "6.11.6", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["include/net/xfrm.h", "net/xfrm/xfrm_policy.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.12"}, {"lessThan": "6.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.261", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.212", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: validate selector family and prefixlen during match\n\nsyzbot reported a shift-out-of-bounds in xfrm_selector_match()\ndue to AF_UNSPEC selector with large prefixlen (e.g. 128) matched\nagainst IPv4 flow (when XFRM_STATE_AF_UNSPEC is set).\n\nFix this by:\n\n- Rejecting mismatched families in xfrm_selector_match.\n- Returning false in addr4_match if prefixlen > 32.\n- Returning false in addr_match if prefixlen > 128 (prevents overflow)."}], "id": "CVE-2026-72450", "lastModified": "2026-10-16T19:17:31.217", "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-2026-72450", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T18:50:15.343640Z", "version": "2.0.3"}}]}, "published": "2026-08-15T06:22:18.950", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/40f0b1047918539f0b0f795ac65e35336b4c2c78"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5a03a2ee17e8259dde631ed84fd8322db06cb2ae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/78783fefdc8f36879b1a17efa0d3195ea5f2dc5f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/87a5bbccc7ff4edb3f42fea387124237d2ba91ee"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a3968ad4195d72c8fddcc6c0ef39da95ac98711a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bd7f202cf77556cff59f68dc30e4cdf40cb6e33b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/efa9e3b9f3dea2e1ea4c7edf4edc863faef85986"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: xfrm: validate selector family and prefixlen during match", "id": "2516656", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516656"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-1335", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nxfrm: validate selector family and prefixlen during match\nsyzbot reported a shift-out-of-bounds in xfrm_selector_match()\ndue to AF_UNSPEC selector with large prefixlen (e.g. 128) matched\nagainst IPv4 flow (when XFRM_STATE_AF_UNSPEC is set).\nFix this by:\n- Rejecting mismatched families in xfrm_selector_match.\n- Returning false in addr4_match if prefixlen > 32.\n- Returning false in addr_match if prefixlen > 128 (prevents overflow).", "A flaw was found in the Linux kernel's xfrm subsystem. This vulnerability, a shift-out-of-bounds error, occurs when an unspecified address family (AF_UNSPEC) selector with a large prefix length is incorrectly matched against an IPv4 flow. An attacker could potentially exploit this by sending specially crafted network packets, leading to memory corruption and causing the system to crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-72450", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72450\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72450\nhttps://lore.kernel.org/linux-cve-announce/2026081531-CVE-2026-72450-f576@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8df5cd51fd70c33aa1776e5cbcd82b0a86649d73,87a5bbccc7ff4edb3f42fea387124237d2ba91ee)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71,bd7f202cf77556cff59f68dc30e4cdf40cb6e33b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bce1afaa212ec380bf971614f70909a27882b862,a3968ad4195d72c8fddcc6c0ef39da95ac98711a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7d9868180bd1e4cf37e7c5067362658971162366,efa9e3b9f3dea2e1ea4c7edf4edc863faef85986)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563,78783fefdc8f36879b1a17efa0d3195ea5f2dc5f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563,6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563,5a03a2ee17e8259dde631ed84fd8322db06cb2ae)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563,40f0b1047918539f0b0f795ac65e35336b4c2c78)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "f31398570acf0f0804c644006f7bfa9067106b0a"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "401ad99a5ae7180dd9449eac104cb755f442e7f3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "e68dd80ba498265d2266b12dc3459164f4ff0c4a"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.10.229,5.10.261)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.15.170,5.15.212)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.1.115,6.1.178)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.59,6.6.145)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.19.323,4.20)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[5.4.285,5.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.11.6,6.12)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.261,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.212,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T18:00:11.225075+00:00", "updated": "2026-08-22T06:45:04.036129+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}