{"api_version":"1","generated_at":"2026-05-28T02:15:31+00:00","cve":"CVE-2024-47685","urls":{"html":"https://cve.report/CVE-2024-47685","api":"https://cve.report/api/cve/CVE-2024-47685.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2024-47685","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-47685"},"summary":{"title":"netfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()\n\nsyzbot reported that nf_reject_ip6_tcphdr_put() was possibly sending\ngarbage on the four reserved tcp bits (th->res1)\n\nUse skb_put_zero() to clear the whole TCP header,\nas done in nf_reject_ip_tcphdr_put()\n\nBUG: KMSAN: uninit-value in nf_reject_ip6_tcphdr_put+0x688/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:255\n  nf_reject_ip6_tcphdr_put+0x688/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:255\n  nf_send_reset6+0xd84/0x15b0 net/ipv6/netfilter/nf_reject_ipv6.c:344\n  nft_reject_inet_eval+0x3c1/0x880 net/netfilter/nft_reject_inet.c:48\n  expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n  nft_do_chain+0x438/0x22a0 net/netfilter/nf_tables_core.c:288\n  nft_do_chain_inet+0x41a/0x4f0 net/netfilter/nft_chain_filter.c:161\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n  nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\n  nf_hook include/linux/netfilter.h:269 [inline]\n  NF_HOOK include/linux/netfilter.h:312 [inline]\n  ipv6_rcv+0x29b/0x390 net/ipv6/ip6_input.c:310\n  __netif_receive_skb_one_core net/core/dev.c:5661 [inline]\n  __netif_receive_skb+0x1da/0xa00 net/core/dev.c:5775\n  process_backlog+0x4ad/0xa50 net/core/dev.c:6108\n  __napi_poll+0xe7/0x980 net/core/dev.c:6772\n  napi_poll net/core/dev.c:6841 [inline]\n  net_rx_action+0xa5a/0x19b0 net/core/dev.c:6963\n  handle_softirqs+0x1ce/0x800 kernel/softirq.c:554\n  __do_softirq+0x14/0x1a kernel/softirq.c:588\n  do_softirq+0x9a/0x100 kernel/softirq.c:455\n  __local_bh_enable_ip+0x9f/0xb0 kernel/softirq.c:382\n  local_bh_enable include/linux/bottom_half.h:33 [inline]\n  rcu_read_unlock_bh include/linux/rcupdate.h:908 [inline]\n  __dev_queue_xmit+0x2692/0x5610 net/core/dev.c:4450\n  dev_queue_xmit include/linux/netdevice.h:3105 [inline]\n  neigh_resolve_output+0x9ca/0xae0 net/core/neighbour.c:1565\n  neigh_output include/net/neighbour.h:542 [inline]\n  ip6_finish_output2+0x2347/0x2ba0 net/ipv6/ip6_output.c:141\n  __ip6_finish_output net/ipv6/ip6_output.c:215 [inline]\n  ip6_finish_output+0xbb8/0x14b0 net/ipv6/ip6_output.c:226\n  NF_HOOK_COND include/linux/netfilter.h:303 [inline]\n  ip6_output+0x356/0x620 net/ipv6/ip6_output.c:247\n  dst_output include/net/dst.h:450 [inline]\n  NF_HOOK include/linux/netfilter.h:314 [inline]\n  ip6_xmit+0x1ba6/0x25d0 net/ipv6/ip6_output.c:366\n  inet6_csk_xmit+0x442/0x530 net/ipv6/inet6_connection_sock.c:135\n  __tcp_transmit_skb+0x3b07/0x4880 net/ipv4/tcp_output.c:1466\n  tcp_transmit_skb net/ipv4/tcp_output.c:1484 [inline]\n  tcp_connect+0x35b6/0x7130 net/ipv4/tcp_output.c:4143\n  tcp_v6_connect+0x1bcc/0x1e40 net/ipv6/tcp_ipv6.c:333\n  __inet_stream_connect+0x2ef/0x1730 net/ipv4/af_inet.c:679\n  inet_stream_connect+0x6a/0xd0 net/ipv4/af_inet.c:750\n  __sys_connect_file net/socket.c:2061 [inline]\n  __sys_connect+0x606/0x690 net/socket.c:2078\n  __do_sys_connect net/socket.c:2088 [inline]\n  __se_sys_connect net/socket.c:2085 [inline]\n  __x64_sys_connect+0x91/0xe0 net/socket.c:2085\n  x64_sys_call+0x27a5/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:43\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nUninit was stored to memory at:\n  nf_reject_ip6_tcphdr_put+0x60c/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:249\n  nf_send_reset6+0xd84/0x15b0 net/ipv6/netfilter/nf_reject_ipv6.c:344\n  nft_reject_inet_eval+0x3c1/0x880 net/netfilter/nft_reject_inet.c:48\n  expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n  nft_do_chain+0x438/0x22a0 net/netfilter/nf_tables_core.c:288\n  nft_do_chain_inet+0x41a/0x4f0 net/netfilter/nft_chain_filter.c:161\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n  nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\n  nf_hook include/linux/netfilter.h:269 [inline]\n  NF_HOOK include/linux/netfilter.h:312 [inline]\n  ipv6_rcv+0x29b/0x390 net/ipv6/ip6_input.c:310\n  __netif_receive_skb_one_core\n---truncated---","state":"PUBLISHED","assigner":"Linux","published_at":"2024-10-21 12:15:05","updated_at":"2026-05-12 12:17:13"},"problem_types":["CWE-908"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/fbff87d682e57ddbbe82abf6d0a1a4a36a98afcd","name":"https://git.kernel.org/stable/c/fbff87d682e57ddbbe82abf6d0a1a4a36a98afcd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7bcbc4cda777d26c88500d973fad0d497fc8a82e","name":"https://git.kernel.org/stable/c/7bcbc4cda777d26c88500d973fad0d497fc8a82e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dcf48ab3ca2c55b09c8f9c8de0df01c1943bc4e5","name":"https://git.kernel.org/stable/c/dcf48ab3ca2c55b09c8f9c8de0df01c1943bc4e5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html","name":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing 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subsystem","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"0","versionType":"custom"}]}],"providerMetadata":{"dateUpdated":"2026-05-12T11:58:11.897Z","orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","shortName":"siemens-SADP"},"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-355557.html"}],"x_adpType":"supplier"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv6/netfilter/nf_reject_ipv6.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"872eca64c3267dbc5836b715716fc6c03a18eda7","status":"affected","version":"c8d7b98bec43faaa6583c3135030be5eb4693acb","versionType":"git"},{"lessThan":"7bcbc4cda777d26c88500d973fad0d497fc8a82e","status":"affected","version":"c8d7b98bec43faaa6583c3135030be5eb4693acb","versionType":"git"},{"lessThan":"dcf48ab3ca2c55b09c8f9c8de0df01c1943bc4e5","status":"affected","version":"c8d7b98bec43faaa6583c3135030be5eb4693acb","versionType":"git"},{"lessThan":"fbff87d682e57ddbbe82abf6d0a1a4a36a98afcd","status":"affected","version":"c8d7b98bec43faaa6583c3135030be5eb4693acb","versionType":"git"},{"lessThan":"7ea2bcfd9bf4c3dbbf22546162226fd1c14d8ad2","status":"affected","version":"c8d7b98bec43faaa6583c3135030be5eb4693acb","versionType":"git"},{"lessThan":"af4b8a704f26f38310655bad67fd8096293275a2","status":"affected","version":"c8d7b98bec43faaa6583c3135030be5eb4693acb","versionType":"git"},{"lessThan":"7a7b5a27c53b55e91eecf646d1b204e73fa4af93","status":"affected","version":"c8d7b98bec43faaa6583c3135030be5eb4693acb","versionType":"git"},{"lessThan":"10210658f827ad45061581cbfc05924b723e8922","status":"affected","version":"c8d7b98bec43faaa6583c3135030be5eb4693acb","versionType":"git"},{"lessThan":"9c778fe48d20ef362047e3376dee56d77f8500d4","status":"affected","version":"c8d7b98bec43faaa6583c3135030be5eb4693acb","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv6/netfilter/nf_reject_ipv6.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.18"},{"lessThan":"3.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"4.19.*","status":"unaffected","version":"4.19.323","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.285","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.227","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.168","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.113","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.54","versionType":"semver"},{"lessThanOrEqual":"6.10.*","status":"unaffected","version":"6.10.13","versionType":"semver"},{"lessThanOrEqual":"6.11.*","status":"unaffected","version":"6.11.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.12","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"4.19.323","versionStartIncluding":"3.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.4.285","versionStartIncluding":"3.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.227","versionStartIncluding":"3.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.168","versionStartIncluding":"3.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.113","versionStartIncluding":"3.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.54","versionStartIncluding":"3.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.10.13","versionStartIncluding":"3.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.11.2","versionStartIncluding":"3.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12","versionStartIncluding":"3.18","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()\n\nsyzbot reported that nf_reject_ip6_tcphdr_put() was possibly sending\ngarbage on the four reserved tcp bits (th->res1)\n\nUse skb_put_zero() to clear the whole TCP header,\nas done in nf_reject_ip_tcphdr_put()\n\nBUG: KMSAN: uninit-value in nf_reject_ip6_tcphdr_put+0x688/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:255\n  nf_reject_ip6_tcphdr_put+0x688/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:255\n  nf_send_reset6+0xd84/0x15b0 net/ipv6/netfilter/nf_reject_ipv6.c:344\n  nft_reject_inet_eval+0x3c1/0x880 net/netfilter/nft_reject_inet.c:48\n  expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n  nft_do_chain+0x438/0x22a0 net/netfilter/nf_tables_core.c:288\n  nft_do_chain_inet+0x41a/0x4f0 net/netfilter/nft_chain_filter.c:161\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n  nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\n  nf_hook include/linux/netfilter.h:269 [inline]\n  NF_HOOK include/linux/netfilter.h:312 [inline]\n  ipv6_rcv+0x29b/0x390 net/ipv6/ip6_input.c:310\n  __netif_receive_skb_one_core net/core/dev.c:5661 [inline]\n  __netif_receive_skb+0x1da/0xa00 net/core/dev.c:5775\n  process_backlog+0x4ad/0xa50 net/core/dev.c:6108\n  __napi_poll+0xe7/0x980 net/core/dev.c:6772\n  napi_poll net/core/dev.c:6841 [inline]\n  net_rx_action+0xa5a/0x19b0 net/core/dev.c:6963\n  handle_softirqs+0x1ce/0x800 kernel/softirq.c:554\n  __do_softirq+0x14/0x1a kernel/softirq.c:588\n  do_softirq+0x9a/0x100 kernel/softirq.c:455\n  __local_bh_enable_ip+0x9f/0xb0 kernel/softirq.c:382\n  local_bh_enable include/linux/bottom_half.h:33 [inline]\n  rcu_read_unlock_bh include/linux/rcupdate.h:908 [inline]\n  __dev_queue_xmit+0x2692/0x5610 net/core/dev.c:4450\n  dev_queue_xmit include/linux/netdevice.h:3105 [inline]\n  neigh_resolve_output+0x9ca/0xae0 net/core/neighbour.c:1565\n  neigh_output include/net/neighbour.h:542 [inline]\n  ip6_finish_output2+0x2347/0x2ba0 net/ipv6/ip6_output.c:141\n  __ip6_finish_output net/ipv6/ip6_output.c:215 [inline]\n  ip6_finish_output+0xbb8/0x14b0 net/ipv6/ip6_output.c:226\n  NF_HOOK_COND include/linux/netfilter.h:303 [inline]\n  ip6_output+0x356/0x620 net/ipv6/ip6_output.c:247\n  dst_output include/net/dst.h:450 [inline]\n  NF_HOOK include/linux/netfilter.h:314 [inline]\n  ip6_xmit+0x1ba6/0x25d0 net/ipv6/ip6_output.c:366\n  inet6_csk_xmit+0x442/0x530 net/ipv6/inet6_connection_sock.c:135\n  __tcp_transmit_skb+0x3b07/0x4880 net/ipv4/tcp_output.c:1466\n  tcp_transmit_skb net/ipv4/tcp_output.c:1484 [inline]\n  tcp_connect+0x35b6/0x7130 net/ipv4/tcp_output.c:4143\n  tcp_v6_connect+0x1bcc/0x1e40 net/ipv6/tcp_ipv6.c:333\n  __inet_stream_connect+0x2ef/0x1730 net/ipv4/af_inet.c:679\n  inet_stream_connect+0x6a/0xd0 net/ipv4/af_inet.c:750\n  __sys_connect_file net/socket.c:2061 [inline]\n  __sys_connect+0x606/0x690 net/socket.c:2078\n  __do_sys_connect net/socket.c:2088 [inline]\n  __se_sys_connect net/socket.c:2085 [inline]\n  __x64_sys_connect+0x91/0xe0 net/socket.c:2085\n  x64_sys_call+0x27a5/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:43\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nUninit was stored to memory at:\n  nf_reject_ip6_tcphdr_put+0x60c/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:249\n  nf_send_reset6+0xd84/0x15b0 net/ipv6/netfilter/nf_reject_ipv6.c:344\n  nft_reject_inet_eval+0x3c1/0x880 net/netfilter/nft_reject_inet.c:48\n  expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n  nft_do_chain+0x438/0x22a0 net/netfilter/nf_tables_core.c:288\n  nft_do_chain_inet+0x41a/0x4f0 net/netfilter/nft_chain_filter.c:161\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n  nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\n  nf_hook include/linux/netfilter.h:269 [inline]\n  NF_HOOK include/linux/netfilter.h:312 [inline]\n  ipv6_rcv+0x29b/0x390 net/ipv6/ip6_input.c:310\n  __netif_receive_skb_one_core\n---truncated---"}],"providerMetadata":{"dateUpdated":"2026-05-11T20:38:46.996Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/872eca64c3267dbc5836b715716fc6c03a18eda7"},{"url":"https://git.kernel.org/stable/c/7bcbc4cda777d26c88500d973fad0d497fc8a82e"},{"url":"https://git.kernel.org/stable/c/dcf48ab3ca2c55b09c8f9c8de0df01c1943bc4e5"},{"url":"https://git.kernel.org/stable/c/fbff87d682e57ddbbe82abf6d0a1a4a36a98afcd"},{"url":"https://git.kernel.org/stable/c/7ea2bcfd9bf4c3dbbf22546162226fd1c14d8ad2"},{"url":"https://git.kernel.org/stable/c/af4b8a704f26f38310655bad67fd8096293275a2"},{"url":"https://git.kernel.org/stable/c/7a7b5a27c53b55e91eecf646d1b204e73fa4af93"},{"url":"https://git.kernel.org/stable/c/10210658f827ad45061581cbfc05924b723e8922"},{"url":"https://git.kernel.org/stable/c/9c778fe48d20ef362047e3376dee56d77f8500d4"}],"title":"netfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2024-47685","datePublished":"2024-10-21T11:53:26.486Z","dateReserved":"2024-09-30T16:00:12.941Z","dateUpdated":"2026-05-12T11:58:11.897Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2024-10-21 12:15:05","lastModifiedDate":"2026-05-12 12:17:13","problem_types":["CWE-908"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.2}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*","matchCriteriaId":"FA6FEEC2-9F11-4643-8827-749718254FED"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18","versionEndExcluding":"4.19.323","matchCriteriaId":"4CF15846-AEEF-4FBF-BED3-18AFD682270F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.285","matchCriteriaId":"B5A89369-320F-47FC-8695-56F61F87E4C0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.227","matchCriteriaId":"795A3EE6-0CAB-4409-A903-151C94ACECC0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.168","matchCriteriaId":"4D51C05D-455B-4D8D-89E7-A58E140B864C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.113","matchCriteriaId":"D01BD22E-ACD1-4618-9D01-6116570BE1EE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.54","matchCriteriaId":"D448821D-C085-4CAF-88FA-2DDE7BE21976"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.10.13","matchCriteriaId":"CE94BB8D-B0AB-4563-9ED7-A12122B56EBE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.11.2","matchCriteriaId":"AB755D26-97F4-43B6-8604-CD076811E181"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2024","CveId":"47685","Ordinal":"1","Title":"netfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()","CVE":"CVE-2024-47685","Year":"2024"},"notes":[{"CveYear":"2024","CveId":"47685","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()\n\nsyzbot reported that nf_reject_ip6_tcphdr_put() was possibly sending\ngarbage on the four reserved tcp bits (th->res1)\n\nUse skb_put_zero() to clear the whole TCP header,\nas done in nf_reject_ip_tcphdr_put()\n\nBUG: KMSAN: uninit-value in nf_reject_ip6_tcphdr_put+0x688/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:255\n  nf_reject_ip6_tcphdr_put+0x688/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:255\n  nf_send_reset6+0xd84/0x15b0 net/ipv6/netfilter/nf_reject_ipv6.c:344\n  nft_reject_inet_eval+0x3c1/0x880 net/netfilter/nft_reject_inet.c:48\n  expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n  nft_do_chain+0x438/0x22a0 net/netfilter/nf_tables_core.c:288\n  nft_do_chain_inet+0x41a/0x4f0 net/netfilter/nft_chain_filter.c:161\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n  nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\n  nf_hook include/linux/netfilter.h:269 [inline]\n  NF_HOOK include/linux/netfilter.h:312 [inline]\n  ipv6_rcv+0x29b/0x390 net/ipv6/ip6_input.c:310\n  __netif_receive_skb_one_core net/core/dev.c:5661 [inline]\n  __netif_receive_skb+0x1da/0xa00 net/core/dev.c:5775\n  process_backlog+0x4ad/0xa50 net/core/dev.c:6108\n  __napi_poll+0xe7/0x980 net/core/dev.c:6772\n  napi_poll net/core/dev.c:6841 [inline]\n  net_rx_action+0xa5a/0x19b0 net/core/dev.c:6963\n  handle_softirqs+0x1ce/0x800 kernel/softirq.c:554\n  __do_softirq+0x14/0x1a kernel/softirq.c:588\n  do_softirq+0x9a/0x100 kernel/softirq.c:455\n  __local_bh_enable_ip+0x9f/0xb0 kernel/softirq.c:382\n  local_bh_enable include/linux/bottom_half.h:33 [inline]\n  rcu_read_unlock_bh include/linux/rcupdate.h:908 [inline]\n  __dev_queue_xmit+0x2692/0x5610 net/core/dev.c:4450\n  dev_queue_xmit include/linux/netdevice.h:3105 [inline]\n  neigh_resolve_output+0x9ca/0xae0 net/core/neighbour.c:1565\n  neigh_output include/net/neighbour.h:542 [inline]\n  ip6_finish_output2+0x2347/0x2ba0 net/ipv6/ip6_output.c:141\n  __ip6_finish_output net/ipv6/ip6_output.c:215 [inline]\n  ip6_finish_output+0xbb8/0x14b0 net/ipv6/ip6_output.c:226\n  NF_HOOK_COND include/linux/netfilter.h:303 [inline]\n  ip6_output+0x356/0x620 net/ipv6/ip6_output.c:247\n  dst_output include/net/dst.h:450 [inline]\n  NF_HOOK include/linux/netfilter.h:314 [inline]\n  ip6_xmit+0x1ba6/0x25d0 net/ipv6/ip6_output.c:366\n  inet6_csk_xmit+0x442/0x530 net/ipv6/inet6_connection_sock.c:135\n  __tcp_transmit_skb+0x3b07/0x4880 net/ipv4/tcp_output.c:1466\n  tcp_transmit_skb net/ipv4/tcp_output.c:1484 [inline]\n  tcp_connect+0x35b6/0x7130 net/ipv4/tcp_output.c:4143\n  tcp_v6_connect+0x1bcc/0x1e40 net/ipv6/tcp_ipv6.c:333\n  __inet_stream_connect+0x2ef/0x1730 net/ipv4/af_inet.c:679\n  inet_stream_connect+0x6a/0xd0 net/ipv4/af_inet.c:750\n  __sys_connect_file net/socket.c:2061 [inline]\n  __sys_connect+0x606/0x690 net/socket.c:2078\n  __do_sys_connect net/socket.c:2088 [inline]\n  __se_sys_connect net/socket.c:2085 [inline]\n  __x64_sys_connect+0x91/0xe0 net/socket.c:2085\n  x64_sys_call+0x27a5/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:43\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nUninit was stored to memory at:\n  nf_reject_ip6_tcphdr_put+0x60c/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:249\n  nf_send_reset6+0xd84/0x15b0 net/ipv6/netfilter/nf_reject_ipv6.c:344\n  nft_reject_inet_eval+0x3c1/0x880 net/netfilter/nft_reject_inet.c:48\n  expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n  nft_do_chain+0x438/0x22a0 net/netfilter/nf_tables_core.c:288\n  nft_do_chain_inet+0x41a/0x4f0 net/netfilter/nft_chain_filter.c:161\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n  nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626\n  nf_hook include/linux/netfilter.h:269 [inline]\n  NF_HOOK include/linux/netfilter.h:312 [inline]\n  ipv6_rcv+0x29b/0x390 net/ipv6/ip6_input.c:310\n  __netif_receive_skb_one_core\n---truncated---","Type":"Description","Title":"netfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()"}]}}}