CVE-2026-53214

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53214", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.392Z", "datePublished": "2026-06-25T08:39:18.209Z", "dateUpdated": "2026-06-25T08:39:18.209Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-25T08:39:18.209Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix a potential NPD in cleanup_prefix_route()\n\naddrconf_get_prefix_route() can return the fib6_null_entry sentinel\nentry which has a NULL fib6_table pointer. Therefore, before setting the\nroute's expiration time, check that we are not working with this entry,\nas otherwise a NPD will be triggered [1].\n\nNote that the other callers of addrconf_get_prefix_route() are not\nsusceptible to this bug:\n\n1. addrconf_prefix_rcv(): Requests a route with the 'RTF_ADDRCONF |\n RTF_PREFIX_RT' flags which are not set on fib6_null_entry.\n\n2. modify_prefix_route(): Fixed by commit a747e02430df (\"ipv6: avoid\n possible NULL deref in modify_prefix_route()\").\n\n3. __ipv6_ifa_notify(): Calls ip6_del_rt() which specifically checks for\n fib6_null_entry and returns an error.\n\n[1]\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]\n[...]\nCall Trace:\n<TASK>\n__kasan_check_byte (mm/kasan/common.c:573)\nlock_acquire.part.0 (kernel/locking/lockdep.c:5842 (discriminator 1))\n_raw_spin_lock_bh (kernel/locking/spinlock.c:182 (discriminator 1))\ncleanup_prefix_route (net/ipv6/addrconf.c:1280)\nipv6_del_addr (net/ipv6/addrconf.c:1342)\ninet6_addr_del.isra.0 (net/ipv6/addrconf.c:3119)\ninet6_rtm_deladdr (net/ipv6/addrconf.c:4812)\nrtnetlink_rcv_msg (net/core/rtnetlink.c:6997)\nnetlink_rcv_skb (net/netlink/af_netlink.c:2555)\nnetlink_unicast (net/netlink/af_netlink.c:1344)\nnetlink_sendmsg (net/netlink/af_netlink.c:1899)\n__sock_sendmsg (net/socket.c:802 (discriminator 4))\n____sys_sendmsg (net/socket.c:2698)\n___sys_sendmsg (net/socket.c:2752)\n__sys_sendmsg (net/socket.c:2784)\ndo_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/addrconf.c"], "versions": [{"version": "bd12abe294c7738421bdfbc486f1909d02db30e9", "lessThan": 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/ipv6/addrconf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "5f82b02b4059ddc06e4fcfd057bfb59fd6885cd2", "status": "affected", "version": "bd12abe294c7738421bdfbc486f1909d02db30e9", "versionType": "git"}, {"lessThan": "192df376a05c2db15564640f9da7e20907c1fa24", "status": "affected", "version": "5eb902b8e7193cdcb33242af0a56502e6b5206e9", "versionType": "git"}, {"lessThan": "07d9a0870a178843cea44cfd58c27445dc94cf5f", "status": "affected", "version": "5eb902b8e7193cdcb33242af0a56502e6b5206e9", "versionType": "git"}, {"lessThan": "653a2849305708f75260b5296f17b2a759ff9cc7", "status": "affected", "version": "5eb902b8e7193cdcb33242af0a56502e6b5206e9", "versionType": "git"}, {"lessThan": "b70c687b7cf267fb08586667a3946c8851cad672", "status": "affected", "version": "5eb902b8e7193cdcb33242af0a56502e6b5206e9", "versionType": "git"}, {"lessThan": "6.6.143", "status": "affected", "version": "6.6.120", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/ipv6/addrconf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"lessThan": "6.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.143", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.94", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.36", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.13", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A0063297-E955-41B3-8AAF-C0E7DE179D21", "versionEndExcluding": "6.6.143", "versionStartIncluding": "6.6.120", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0FA23C34-76C0-4758-A17E-44FD25C1DEA5", "versionEndExcluding": "6.12.94", "versionStartIncluding": "6.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "389025D2-958D-41BD-BD96-70ED1033A9F3", "versionEndExcluding": "6.18.36", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6A64BF9F-3BCA-42FD-98CB-8F03474D2B1E", "versionEndExcluding": "7.0.13", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*", "matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*", "matchCriteriaId": "E5910A9D-F60A-409A-B486-FE66BFEBA9B9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*", "matchCriteriaId": "81DFF19E-9CF8-49C6-8C36-1E4038622933", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*", "matchCriteriaId": "B0E8FC71-3952-444C-83E9-718DBBBEC615", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:*", "matchCriteriaId": "1039E95A-8CC3-4C88-8FF9-5C08EEB861C9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix a potential NPD in cleanup_prefix_route()\n\naddrconf_get_prefix_route() can return the fib6_null_entry sentinel\nentry which has a NULL fib6_table pointer. Therefore, before setting the\nroute's expiration time, check that we are not working with this entry,\nas otherwise a NPD will be triggered [1].\n\nNote that the other callers of addrconf_get_prefix_route() are not\nsusceptible to this bug:\n\n1. addrconf_prefix_rcv(): Requests a route with the 'RTF_ADDRCONF |\n RTF_PREFIX_RT' flags which are not set on fib6_null_entry.\n\n2. modify_prefix_route(): Fixed by commit a747e02430df (\"ipv6: avoid\n possible NULL deref in modify_prefix_route()\").\n\n3. __ipv6_ifa_notify(): Calls ip6_del_rt() which specifically checks for\n fib6_null_entry and returns an error.\n\n[1]\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]\n[...]\nCall Trace:\n<TASK>\n__kasan_check_byte (mm/kasan/common.c:573)\nlock_acquire.part.0 (kernel/locking/lockdep.c:5842 (discriminator 1))\n_raw_spin_lock_bh (kernel/locking/spinlock.c:182 (discriminator 1))\ncleanup_prefix_route (net/ipv6/addrconf.c:1280)\nipv6_del_addr (net/ipv6/addrconf.c:1342)\ninet6_addr_del.isra.0 (net/ipv6/addrconf.c:3119)\ninet6_rtm_deladdr (net/ipv6/addrconf.c:4812)\nrtnetlink_rcv_msg (net/core/rtnetlink.c:6997)\nnetlink_rcv_skb (net/netlink/af_netlink.c:2555)\nnetlink_unicast (net/netlink/af_netlink.c:1344)\nnetlink_sendmsg (net/netlink/af_netlink.c:1899)\n__sock_sendmsg (net/socket.c:802 (discriminator 4))\n____sys_sendmsg (net/socket.c:2698)\n___sys_sendmsg (net/socket.c:2752)\n__sys_sendmsg (net/socket.c:2784)\ndo_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)"}], "id": "CVE-2026-53214", "lastModified": "2026-07-02T20:52:51.903", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-06-25T09:16:39.053", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/07d9a0870a178843cea44cfd58c27445dc94cf5f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/192df376a05c2db15564640f9da7e20907c1fa24"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5f82b02b4059ddc06e4fcfd057bfb59fd6885cd2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/653a2849305708f75260b5296f17b2a759ff9cc7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b70c687b7cf267fb08586667a3946c8851cad672"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: ipv6: Fix a potential NPD in cleanup_prefix_route()", "id": "2492827", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492827"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nipv6: Fix a potential NPD in cleanup_prefix_route()\naddrconf_get_prefix_route() can return the fib6_null_entry sentinel\nentry which has a NULL fib6_table pointer. Therefore, before setting the\nroute's expiration time, check that we are not working with this entry,\nas otherwise a NPD will be triggered [1].\nNote that the other callers of addrconf_get_prefix_route() are not\nsusceptible to this bug:\n1. addrconf_prefix_rcv(): Requests a route with the 'RTF_ADDRCONF |\nRTF_PREFIX_RT' flags which are not set on fib6_null_entry.\n2. modify_prefix_route(): Fixed by commit a747e02430df (\"ipv6: avoid\npossible NULL deref in modify_prefix_route()\").\n3. __ipv6_ifa_notify(): Calls ip6_del_rt() which specifically checks for\nfib6_null_entry and returns an error.\n[1]\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]\n[...]\nCall Trace:\n<TASK>\n__kasan_check_byte (mm/kasan/common.c:573)\nlock_acquire.part.0 (kernel/locking/lockdep.c:5842 (discriminator 1))\n_raw_spin_lock_bh (kernel/locking/spinlock.c:182 (discriminator 1))\ncleanup_prefix_route (net/ipv6/addrconf.c:1280)\nipv6_del_addr (net/ipv6/addrconf.c:1342)\ninet6_addr_del.isra.0 (net/ipv6/addrconf.c:3119)\ninet6_rtm_deladdr (net/ipv6/addrconf.c:4812)\nrtnetlink_rcv_msg (net/core/rtnetlink.c:6997)\nnetlink_rcv_skb (net/netlink/af_netlink.c:2555)\nnetlink_unicast (net/netlink/af_netlink.c:1344)\nnetlink_sendmsg (net/netlink/af_netlink.c:1899)\n__sock_sendmsg (net/socket.c:802 (discriminator 4))\n____sys_sendmsg (net/socket.c:2698)\n___sys_sendmsg (net/socket.c:2752)\n__sys_sendmsg (net/socket.c:2784)\ndo_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)"], "name": "CVE-2026-53214", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not 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-2026-53214\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53214\nhttps://lore.kernel.org/linux-cve-announce/2026062504-CVE-2026-53214-9ec6@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[bd12abe294c7738421bdfbc486f1909d02db30e9,5f82b02b4059ddc06e4fcfd057bfb59fd6885cd2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5eb902b8e7193cdcb33242af0a56502e6b5206e9,192df376a05c2db15564640f9da7e20907c1fa24)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5eb902b8e7193cdcb33242af0a56502e6b5206e9,07d9a0870a178843cea44cfd58c27445dc94cf5f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5eb902b8e7193cdcb33242af0a56502e6b5206e9,653a2849305708f75260b5296f17b2a759ff9cc7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5eb902b8e7193cdcb33242af0a56502e6b5206e9,b70c687b7cf267fb08586667a3946c8851cad672)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.120,6.6.143)"}}], "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": "6.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.143,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.94,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.36,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.13,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-06-25T11:30:06.464900+00:00", "updated": "2026-08-13T13:30:17.333954+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}