{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23412", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:46.013Z", "datePublished": "2026-04-02T11:40:53.528Z", "dateUpdated": "2026-04-02T11:40:53.528Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-02T11:40:53.528Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bpf: defer hook memory release until rcu readers are done\n\nYiming Qian reports UaF when concurrent process is dumping hooks via\nnfnetlink_hooks:\n\nBUG: KASAN: slab-use-after-free in nfnl_hook_dump_one.isra.0+0xe71/0x10f0\nRead of size 8 at addr ffff888003edbf88 by task poc/79\nCall Trace:\n <TASK>\n nfnl_hook_dump_one.isra.0+0xe71/0x10f0\n netlink_dump+0x554/0x12b0\n nfnl_hook_get+0x176/0x230\n [..]\n\nDefer release until after concurrent readers have completed."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nf_bpf_link.c"], "versions": [{"version": "84601d6ee68ae820dec97450934797046d62db4b", "lessThan": "d016c216bc75c45128160593a77b864a04dbe7c0", "status": "affected", "versionType": "git"}, {"version": "84601d6ee68ae820dec97450934797046d62db4b", "lessThan": "cb2bf5efdb02a2a59faf603604a1066e8266f349", "status": "affected", "versionType": "git"}, {"version": "84601d6ee68ae820dec97450934797046d62db4b", "lessThan": "c25e0dec366ae99b7264324ce3c7cbaea34691f9", "status": "affected", "versionType": "git"}, {"version": "84601d6ee68ae820dec97450934797046d62db4b", "lessThan": "54244d54a971c26a0cd0a9073460ff71f3c51b32", "status": "affected", "versionType": "git"}, {"version": "84601d6ee68ae820dec97450934797046d62db4b", "lessThan": "24f90fa3994b992d1a09003a3db2599330a5232a", "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/nf_bpf_link.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.130", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.78", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.20", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.10", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0-rc5", "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": "6.4", "versionEndExcluding": "6.6.130"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.12.78"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.18.20"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.19.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.0-rc5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d016c216bc75c45128160593a77b864a04dbe7c0"}, {"url": "https://git.kernel.org/stable/c/cb2bf5efdb02a2a59faf603604a1066e8266f349"}, {"url": "https://git.kernel.org/stable/c/c25e0dec366ae99b7264324ce3c7cbaea34691f9"}, {"url": "https://git.kernel.org/stable/c/54244d54a971c26a0cd0a9073460ff71f3c51b32"}, {"url": "https://git.kernel.org/stable/c/24f90fa3994b992d1a09003a3db2599330a5232a"}], "title": "netfilter: bpf: defer hook memory release until rcu readers are done", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bpf: defer hook memory release until rcu readers are done\n\nYiming Qian reports UaF when concurrent process is dumping hooks via\nnfnetlink_hooks:\n\nBUG: KASAN: slab-use-after-free in nfnl_hook_dump_one.isra.0+0xe71/0x10f0\nRead of size 8 at addr ffff888003edbf88 by task poc/79\nCall Trace:\n <TASK>\n nfnl_hook_dump_one.isra.0+0xe71/0x10f0\n netlink_dump+0x554/0x12b0\n nfnl_hook_get+0x176/0x230\n [..]\n\nDefer release until after concurrent readers have completed."}], "id": "CVE-2026-23412", "lastModified": "2026-04-02T12:16:20.270", "metrics": {}, "published": "2026-04-02T12:16:20.270", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/24f90fa3994b992d1a09003a3db2599330a5232a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/54244d54a971c26a0cd0a9073460ff71f3c51b32"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c25e0dec366ae99b7264324ce3c7cbaea34691f9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cb2bf5efdb02a2a59faf603604a1066e8266f349"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d016c216bc75c45128160593a77b864a04dbe7c0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}