{ "containers": { "cna": { "providerMetadata": { "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" }, "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---" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/ipv6/netfilter/nf_reject_ipv6.c" ], "versions": [ { "version": "c8d7b98bec43", "lessThan": "dcf48ab3ca2c", "status": "affected", "versionType": "git" }, { "version": "c8d7b98bec43", "lessThan": "fbff87d682e5", "status": "affected", "versionType": "git" }, { "version": "c8d7b98bec43", "lessThan": "7ea2bcfd9bf4", "status": "affected", "versionType": "git" }, { "version": "c8d7b98bec43", "lessThan": "af4b8a704f26", "status": "affected", "versionType": "git" }, { "version": "c8d7b98bec43", "lessThan": "7a7b5a27c53b", "status": "affected", "versionType": "git" }, { "version": "c8d7b98bec43", "lessThan": "10210658f827", "status": "affected", "versionType": "git" }, { "version": "c8d7b98bec43", "lessThan": "9c778fe48d20", "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/ipv6/netfilter/nf_reject_ipv6.c" ], "versions": [ { "version": "3.18", "status": "affected" }, { "version": "0", "lessThan": "3.18", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.227", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.15.168", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.1.113", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.6.54", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.10.13", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.11.2", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "custom" }, { "version": "6.12-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "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-c9c4e1df01b2" } } }, "cveMetadata": { "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", "cveID": "CVE-2024-47685", "requesterUserId": "gregkh@kernel.org", "serial": "1", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.0" }