{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-53304", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-16T08:09:37.994Z", "datePublished": "2025-09-16T16:11:44.147Z", "dateUpdated": "2025-09-16T16:11:44.147Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-09-16T16:11:44.147Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_set_rbtree: fix overlap expiration walk\n\nThe lazy gc on insert that should remove timed-out entries fails to release\nthe other half of the interval, if any.\n\nCan be reproduced with tests/shell/testcases/sets/0044interval_overlap_0\nin nftables.git and kmemleak enabled kernel.\n\nSecond bug is the use of rbe_prev vs. prev pointer.\nIf rbe_prev() returns NULL after at least one iteration, rbe_prev points\nto element that is not an end interval, hence it should not be removed.\n\nLastly, check the genmask of the end interval if this is active in the\ncurrent generation."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nft_set_rbtree.c"], "versions": [{"version": "7ab87a326f20c52ff4d9972052d085be951c704b", "lessThan": "8284a79136c384059e85e278da2210b809730287", "status": "affected", "versionType": "git"}, {"version": "181859bdfb9734aca449512fccaee4cacce64aed", "lessThan": "acaee227cf79c45a5d2d49c3e9a66333a462802c", "status": "affected", "versionType": "git"}, {"version": "4aacf3d78424293e318c616016865380b37b9cc5", "lessThan": "893cb3c3513cf661a0ff45fe0cfa83fe27131f76", "status": "affected", "versionType": "git"}, {"version": "2bf1435fa19d2c58054391b3bba40d5510a5758c", "lessThan": "50cbb9d195c197af671869c8cadce3bd483735a0", "status": "affected", "versionType": "git"}, {"version": "318cb24a4c3fce8140afaf84e4d45fcb76fb280b", "lessThan": "89a4d1a89751a0fbd520e64091873e19cc0979e8", "status": "affected", "versionType": "git"}, {"version": "c9e6978e2725a7d4b6cd23b2facd3f11422c0643", "lessThan": "cd66733932399475fe933cb3ec03e687ed401462", "status": "affected", "versionType": "git"}, {"version": "c9e6978e2725a7d4b6cd23b2facd3f11422c0643", "lessThan": "f718863aca469a109895cb855e6b81fff4827d71", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nft_set_rbtree.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.190", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.124", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.43", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4.8", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5", "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": "5.10.166", "versionEndExcluding": "5.10.190"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.91", "versionEndExcluding": "5.15.124"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.9", "versionEndExcluding": "6.1.43"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.4.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8284a79136c384059e85e278da2210b809730287"}, {"url": "https://git.kernel.org/stable/c/acaee227cf79c45a5d2d49c3e9a66333a462802c"}, {"url": "https://git.kernel.org/stable/c/893cb3c3513cf661a0ff45fe0cfa83fe27131f76"}, {"url": "https://git.kernel.org/stable/c/50cbb9d195c197af671869c8cadce3bd483735a0"}, {"url": "https://git.kernel.org/stable/c/89a4d1a89751a0fbd520e64091873e19cc0979e8"}, {"url": "https://git.kernel.org/stable/c/cd66733932399475fe933cb3ec03e687ed401462"}, {"url": "https://git.kernel.org/stable/c/f718863aca469a109895cb855e6b81fff4827d71"}], "title": "netfilter: nft_set_rbtree: fix overlap expiration walk", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_set_rbtree: fix overlap expiration walk\n\nThe lazy gc on insert that should remove timed-out entries fails to release\nthe other half of the interval, if any.\n\nCan be reproduced with tests/shell/testcases/sets/0044interval_overlap_0\nin nftables.git and kmemleak enabled kernel.\n\nSecond bug is the use of rbe_prev vs. prev pointer.\nIf rbe_prev() returns NULL after at least one iteration, rbe_prev points\nto element that is not an end interval, hence it should not be removed.\n\nLastly, check the genmask of the end interval if this is active in the\ncurrent generation."}], "id": "CVE-2023-53304", "lastModified": "2025-09-16T17:15:35.240", "metrics": {}, "published": "2025-09-16T17:15:35.240", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/50cbb9d195c197af671869c8cadce3bd483735a0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8284a79136c384059e85e278da2210b809730287"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/893cb3c3513cf661a0ff45fe0cfa83fe27131f76"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/89a4d1a89751a0fbd520e64091873e19cc0979e8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/acaee227cf79c45a5d2d49c3e9a66333a462802c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cd66733932399475fe933cb3ec03e687ed401462"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f718863aca469a109895cb855e6b81fff4827d71"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: netfilter: nft_set_rbtree: fix overlap expiration walk", "id": "2395846", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395846"}, "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": ["No description is available for this CVE."], "name": "CVE-2023-53304", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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": "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": "2025-09-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53304\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53304\nhttps://lore.kernel.org/linux-cve-announce/2025091641-CVE-2023-53304-9a57@gregkh/T"], "threat_severity": "Low"}