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BUG: KMSAN: uninit-value in nf_reject_ip6_tcphdr_put+0x688/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:255
 nf_reject_ip6_tcphdr_put+0x688/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:255
 nf_send_reset6+0xd84/0x15b0 net/ipv6/netfilter/nf_reject_ipv6.c:344
 nft_reject_inet_eval+0x3c1/0x880 net/netfilter/nft_reject_inet.c:48
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288
 nft_do_chain_inet+0x41a/0x4f0 net/netfilter/nft_chain_filter.c:161
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626
 nf_hook include/linux/netfilter.h:269 [inline]
 NF_HOOK include/linux/netfilter.h:312 [inline]
 ip6_xmit+0x2488/0x25d0 net/ipv6/ip6_output.c:366
 inet6_csk_xmit+0x442/0x530 net/ipv6/inet6_connection_sock.c:135
 __tcp_transmit_skb+0x3b07/0x4880 net/ipv4/tcp_output.c:1466
 tcp_transmit_skb net/ipv4/tcp_output.c:1484 [inline]
 tcp_send_syn_data net/ipv4/tcp_output.c:4059 [inline]
 tcp_connect+0x5b37/0x7200 net/ipv4/tcp_output.c:4145
 tcp_v6_connect+0x1bcc/0x1e40 net/ipv6/tcp_ipv6.c:333
 __inet_stream_connect+0x2ef/0x1730 net/ipv4/af_inet.c:679
 tcp_sendmsg_fastopen+0x76f/0x950 net/ipv4/tcp.c:1038
 tcp_sendmsg_locked+0x863/0x6eb0 net/ipv4/tcp.c:1090
 tcp_sendmsg+0x49/0x90 net/ipv4/tcp.c:1357
 inet6_sendmsg+0x142/0x280 net/ipv6/af_inet6.c:661
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x143/0x380 net/socket.c:745
 __sys_sendto+0x67f/0x830 net/socket.c:2210
 __do_sys_sendto net/socket.c:2222 [inline]
 __se_sys_sendto net/socket.c:2218 [inline]
 __x64_sys_sendto+0x125/0x1d0 net/socket.c:2218
 x64_sys_call+0x3373/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:45
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 nf_reject_ip6_tcphdr_put+0x60c/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:249
 nf_send_reset6+0xd84/0x15b0 net/ipv6/netfilter/nf_reject_ipv6.c:344
 nft_reject_inet_eval+0x3c1/0x880 net/netfilter/nft_reject_inet.c:48
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288
 nft_do_chain_inet+0x41a/0x4f0 net/netfilter/nft_chain_filter.c:161
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626
 nf_hook include/linux/netfilter.h:269 [inline]
 NF_HOOK include/linux/netfilter.h:312 [inline]
 ip6_xmit+0x2488/0x25d0 net/ipv6/ip6_output.c:366
 inet6_csk_xmit+0x442/0x530 net/ipv6/inet6_connection_sock.c:135
 __tcp_transmit_skb+0x3b07/0x4880 net/ipv4/tcp_output.c:1466
 tcp_transmit_skb net/ipv4/tcp_output.c:1484 [inline]
 tcp_send_syn_data net/ipv4/tcp_output.c:4059 [inline]
 tcp_connect+0x5b37/0x7200 net/ipv4/tcp_output.c:4145
 tcp_v6_connect+0x1bcc/0x1e40 net/ipv6/tcp_ipv6.c:333
 __inet_stream_connect+0x2ef/0x1730 net/ipv4/af_inet.c:679
 tcp_sendmsg_fastopen+0x76f/0x950 net/ipv4/tcp.c:1038
 tcp_sendmsg_locked+0x863/0x6eb0 net/ipv4/tcp.c:1090
 tcp_sendmsg+0x49/0x90 net/ipv4/tcp.c:1357
 inet6_sendmsg+0x142/0x280 net/ipv6/af_inet6.c:661
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x143/0x380 net/socket.c:745
 __sys_sendto+0x67f/0x830 net/socket.c:2210
 __do_sys_sendto net/socket.c:2222 [inline]
 __se_sys_sendto net/socket.c:2218 [inline]
 __x64_sys_sendto+0x125/0x1d0 net/socket.c:2218
 x64_sys_call+0x3373/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:45
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 nf_reject_ip6_tcphdr_put+0x2ca/0x6c0 net/ipv6/netfilter/nf_reject_ipv6.c:231
 nf_send_reset6+0xd84/0x15b0 net/ipv6/netfilter/nf_reject_ipv6.c:344
 nft_reject_inet_eval+0x3c1/0x880 net/netfilter/nft_reject_inet.c:48
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288
 nft_do_chain_inet+0x41a/0x4f0 net/netfilter/nft_chain_filter.c:161
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626
 nf_hook include/linux/netfilter.h:269 [inline]
 NF_HOOK include/linux/netfilter.h:312 [inline]
 ip6_xmit+0x2488/0x25d0 net/ipv6/ip6_output.c:366
 inet6_csk_xmit+0x442/0x530 net/ipv6/inet6_connection_sock.c:135
 __tcp_transmit_skb+0x3b07/0x4880 net/ipv4/tcp_output.c:1466
 tcp_transmit_skb net/ipv4/tcp_output.c:1484 [inline]
 tcp_send_syn_data net/ipv4/tcp_output.c:4059 [inline]
 tcp_connect+0x5b37/0x7200 net/ipv4/tcp_output.c:4145
 tcp_v6_connect+0x1bcc/0x1e40 net/ipv6/tcp_ipv6.c:333
 __inet_stream_connect+0x2ef/0x1730 net/ipv4/af_inet.c:679
 tcp_sendmsg_fastopen+0x76f/0x950 net/ipv4/tcp.c:1038
 tcp_sendmsg_locked+0x863/0x6eb0 net/ipv4/tcp.c:1090
 tcp_sendmsg+0x49/0x90 net/ipv4/tcp.c:1357
 inet6_sendmsg+0x142/0x280 net/ipv6/af_inet6.c:661
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x143/0x380 net/socket.c:745
 __sys_sendto+0x67f/0x830 net/socket.c:2210
 __do_sys_sendto net/socket.c:2222 [inline]
 __se_sys_sendto net/socket.c:2218 [inline]
 __x64_sys_sendto+0x125/0x1d0 net/socket.c:2218
 x64_sys_call+0x3373/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:45
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4092 [inline]
 slab_alloc_node mm/slub.c:4135 [inline]
 kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4187
 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:587
 __alloc_skb+0x363/0x7b0 net/core/skbuff.c:678
 alloc_skb include/linux/skbuff.h:1322 [inline]
 nf_send_reset6+0x98d/0x15b0 net/ipv6/netfilter/nf_reject_ipv6.c:327
 nft_reject_inet_eval+0x3c1/0x880 net/netfilter/nft_reject_inet.c:48
 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
 nft_do_chain+0x426/0x2290 net/netfilter/nf_tables_core.c:288
 nft_do_chain_inet+0x41a/0x4f0 net/netfilter/nft_chain_filter.c:161
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xf4/0x400 net/netfilter/core.c:626
 nf_hook include/linux/netfilter.h:269 [inline]
 NF_HOOK include/linux/netfilter.h:312 [inline]
 ip6_xmit+0x2488/0x25d0 net/ipv6/ip6_output.c:366
 inet6_csk_xmit+0x442/0x530 net/ipv6/inet6_connection_sock.c:135
 __tcp_transmit_skb+0x3b07/0x4880 net/ipv4/tcp_output.c:1466
 tcp_transmit_skb net/ipv4/tcp_output.c:1484 [inline]
 tcp_send_syn_data net/ipv4/tcp_output.c:4059 [inline]
 tcp_connect+0x5b37/0x7200 net/ipv4/tcp_output.c:4145
 tcp_v6_connect+0x1bcc/0x1e40 net/ipv6/tcp_ipv6.c:333
 __inet_stream_connect+0x2ef/0x1730 net/ipv4/af_inet.c:679
 tcp_sendmsg_fastopen+0x76f/0x950 net/ipv4/tcp.c:1038
 tcp_sendmsg_locked+0x863/0x6eb0 net/ipv4/tcp.c:1090
 tcp_sendmsg+0x49/0x90 net/ipv4/tcp.c:1357
 inet6_sendmsg+0x142/0x280 net/ipv6/af_inet6.c:661
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x143/0x380 net/socket.c:745
 __sys_sendto+0x67f/0x830 net/socket.c:2210
 __do_sys_sendto net/socket.c:2222 [inline]
 __se_sys_sendto net/socket.c:2218 [inline]
 __x64_sys_sendto+0x125/0x1d0 net/socket.c:2218
 x64_sys_call+0x3373/0x3ba0 arch/x86/include/generated/asm/syscalls_64.h:45
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

CPU: 1 UID: 0 PID: 7218 Comm: syz.0.527 Not tainted 6.11.0-syzkaller-08481-g88264981f208 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
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