===================================================== BUG: KMSAN: uninit-value in netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751 CPU: 0 PID: 18291 Comm: syz-executor.3 Tainted: G W 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197 netif_receive_generic_xdp+0x15c2/0x2590 net/core/dev.c:4751 do_xdp_generic net/core/dev.c:4816 [inline] __netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207 __netif_receive_skb_one_core net/core/dev.c:5382 [inline] __netif_receive_skb+0xf2/0x640 net/core/dev.c:5498 process_backlog+0x517/0xbd0 net/core/dev.c:6365 __napi_poll+0x13e/0xca0 net/core/dev.c:6912 napi_poll net/core/dev.c:6979 [inline] net_rx_action+0x726/0x14a0 net/core/dev.c:7065 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422 irq_exit_rcu+0xe/0x10 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650 RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 kernel/locking/spinlock.c:192 Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 RSP: 0018:ffff888155917830 EFLAGS: 00000206 RAX: ffff88823fe6e700 RBX: 0000000000000000 RCX: 000000023fdce700 RDX: ffff88823fdce700 RSI: 0000000000000270 RDI: ffff88813fc1d700 RBP: ffff888155917848 R08: ffffea000000000f R09: ffff88813fffa000 R10: 000000009139edcd R11: 0000000000000000 R12: ffff88813fc1d700 R13: ffff88809d3868e8 R14: 0000000000000000 R15: 0000000000000200 unlock_hrtimer_base kernel/time/hrtimer.c:915 [inline] hrtimer_start_range_ns+0x44f/0x4d0 kernel/time/hrtimer.c:1153 hrtimer_start include/linux/hrtimer.h:422 [inline] j1939_tp_schedule_txtimer+0x135/0x1b0 net/can/j1939/transport.c:679 j1939_sk_send_loop net/can/j1939/socket.c:1062 [inline] j1939_sk_sendmsg+0x1c34/0x2890 net/can/j1939/socket.c:1175 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0xcfc/0x12f0 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmsg+0x714/0x830 net/socket.c:2433 __compat_sys_sendmsg net/compat.c:347 [inline] __do_compat_sys_sendmsg net/compat.c:354 [inline] __se_compat_sys_sendmsg+0xa7/0xc0 net/compat.c:351 __ia32_compat_sys_sendmsg+0x4a/0x70 net/compat.c:351 do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline] __do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142 do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7fb9549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f55b35fc EFLAGS: 00000296 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200001c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289 kmsan_memcpy_memmove_metadata+0x25e/0x2d0 mm/kmsan/kmsan.c:226 kmsan_memcpy_metadata+0xb/0x10 mm/kmsan/kmsan.c:246 __msan_memcpy+0x46/0x60 mm/kmsan/kmsan_instr.c:110 pskb_expand_head+0x3d6/0x1e20 net/core/skbuff.c:1685 netif_receive_generic_xdp+0x61c/0x2590 net/core/dev.c:4699 do_xdp_generic net/core/dev.c:4816 [inline] __netif_receive_skb_core+0x294a/0x65a0 net/core/dev.c:5207 __netif_receive_skb_one_core net/core/dev.c:5382 [inline] __netif_receive_skb+0xf2/0x640 net/core/dev.c:5498 process_backlog+0x517/0xbd0 net/core/dev.c:6365 __napi_poll+0x13e/0xca0 net/core/dev.c:6912 napi_poll net/core/dev.c:6979 [inline] net_rx_action+0x726/0x14a0 net/core/dev.c:7065 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2922 [inline] __kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609 kmalloc_reserve net/core/skbuff.c:353 [inline] __alloc_skb+0x4dd/0xe90 net/core/skbuff.c:424 alloc_skb include/linux/skbuff.h:1103 [inline] alloc_skb_with_frags+0x1f3/0xc10 net/core/skbuff.c:5948 sock_alloc_send_pskb+0xdc1/0xf90 net/core/sock.c:2362 sock_alloc_send_skb+0xca/0xe0 net/core/sock.c:2379 j1939_sk_alloc_skb net/can/j1939/socket.c:858 [inline] j1939_sk_send_loop net/can/j1939/socket.c:1040 [inline] j1939_sk_sendmsg+0xddd/0x2890 net/can/j1939/socket.c:1175 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0xcfc/0x12f0 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmsg+0x714/0x830 net/socket.c:2433 __compat_sys_sendmsg net/compat.c:347 [inline] __do_compat_sys_sendmsg net/compat.c:354 [inline] __se_compat_sys_sendmsg+0xa7/0xc0 net/compat.c:351 __ia32_compat_sys_sendmsg+0x4a/0x70 net/compat.c:351 do_syscall_32_irqs_on arch/x86/entry/common.c:79 [inline] __do_fast_syscall_32+0x127/0x180 arch/x86/entry/common.c:142 do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:168 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:211 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c ===================================================== not chained 190000 origins CPU: 0 PID: 165 Comm: kworker/u4:5 Tainted: G B W 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: krdsd rds_connect_worker Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_internal_chain_origin+0x6f/0x130 mm/kmsan/kmsan.c:280 __msan_chain_origin+0x54/0xa0 mm/kmsan/kmsan_instr.c:147 tcp_openreq_init net/ipv4/tcp_input.c:6633 [inline] tcp_conn_request+0x19e9/0x4d90 net/ipv4/tcp_input.c:6810 tcp_v6_conn_request+0x3d6/0x500 net/ipv6/tcp_ipv6.c:1183 tcp_rcv_state_process+0x2f4/0x4560 net/ipv4/tcp_input.c:6343 tcp_v6_do_rcv+0x1224/0x1fd0 net/ipv6/tcp_ipv6.c:1515 tcp_v6_rcv+0x6969/0x7430 net/ipv6/tcp_ipv6.c:1711 ip6_protocol_deliver_rcu+0x1402/0x25f0 net/ipv6/ip6_input.c:422 ip6_input_finish net/ipv6/ip6_input.c:463 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_input+0x12b/0x390 net/ipv6/ip6_input.c:472 dst_input include/net/dst.h:458 [inline] ip6_rcv_finish+0x5fc/0x7f0 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0x1d1/0x460 net/ipv6/ip6_input.c:297 __netif_receive_skb_one_core net/core/dev.c:5384 [inline] __netif_receive_skb+0x1ec/0x640 net/core/dev.c:5498 process_backlog+0x517/0xbd0 net/core/dev.c:6365 __napi_poll+0x13e/0xca0 net/core/dev.c:6912 napi_poll net/core/dev.c:6979 [inline] net_rx_action+0x726/0x14a0 net/core/dev.c:7065 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 do_softirq+0x123/0x1c0 kernel/softirq.c:248 __local_bh_enable_ip+0xa1/0xb0 kernel/softirq.c:198 local_bh_enable+0x36/0x40 include/linux/bottom_half.h:32 rcu_read_unlock_bh include/linux/rcupdate.h:745 [inline] ip6_finish_output2+0x249c/0x2a40 net/ipv6/ip6_output.c:118 __ip6_finish_output+0xe04/0xee0 net/ipv6/ip6_output.c:182 ip6_finish_output+0x329/0x480 net/ipv6/ip6_output.c:192 NF_HOOK_COND include/linux/netfilter.h:290 [inline] ip6_output+0x4a4/0x7f0 net/ipv6/ip6_output.c:215 dst_output include/net/dst.h:448 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_xmit+0x22a9/0x2a80 net/ipv6/ip6_output.c:320 inet6_csk_xmit+0x47f/0x5a0 net/ipv6/inet6_connection_sock.c:135 __tcp_transmit_skb+0x4c59/0x5ea0 net/ipv4/tcp_output.c:1405 tcp_transmit_skb net/ipv4/tcp_output.c:1423 [inline] tcp_connect+0x104d/0x3d40 net/ipv4/tcp_output.c:3856 tcp_v6_connect+0x2c2e/0x2da0 net/ipv6/tcp_ipv6.c:334 __inet_stream_connect+0x8bf/0x1780 net/ipv4/af_inet.c:664 inet_stream_connect+0x101/0x180 net/ipv4/af_inet.c:728 rds_tcp_conn_path_connect+0x9e1/0xd30 net/rds/tcp_connect.c:172 rds_connect_worker+0x3ba/0x5b0 net/rds/threads.c:176 process_one_work+0x1219/0x1fe0 kernel/workqueue.c:2275 worker_thread+0x10ec/0x2340 kernel/workqueue.c:2421 kthread+0x521/0x560 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289 __msan_chain_origin+0x54/0xa0 mm/kmsan/kmsan_instr.c:147 tcp_conn_request+0x1b33/0x4d90 net/ipv4/tcp_input.c:6811 tcp_v6_conn_request+0x3d6/0x500 net/ipv6/tcp_ipv6.c:1183 tcp_rcv_state_process+0x2f4/0x4560 net/ipv4/tcp_input.c:6343 tcp_v6_do_rcv+0x1224/0x1fd0 net/ipv6/tcp_ipv6.c:1515 tcp_v6_rcv+0x6969/0x7430 net/ipv6/tcp_ipv6.c:1711 ip6_protocol_deliver_rcu+0x1402/0x25f0 net/ipv6/ip6_input.c:422 ip6_input_finish net/ipv6/ip6_input.c:463 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_input+0x12b/0x390 net/ipv6/ip6_input.c:472 dst_input include/net/dst.h:458 [inline] ip6_rcv_finish+0x5fc/0x7f0 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0x1d1/0x460 net/ipv6/ip6_input.c:297 __netif_receive_skb_one_core net/core/dev.c:5384 [inline] __netif_receive_skb+0x1ec/0x640 net/core/dev.c:5498 process_backlog+0x517/0xbd0 net/core/dev.c:6365 __napi_poll+0x13e/0xca0 net/core/dev.c:6912 napi_poll net/core/dev.c:6979 [inline] net_rx_action+0x726/0x14a0 net/core/dev.c:7065 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289 __msan_chain_origin+0x54/0xa0 mm/kmsan/kmsan_instr.c:147 tcp_openreq_init_rwin+0xcc6/0x1010 net/ipv4/tcp_minisocks.c:396 tcp_conn_request+0x2bbd/0x4d90 net/ipv4/tcp_input.c:6855 tcp_v6_conn_request+0x3d6/0x500 net/ipv6/tcp_ipv6.c:1183 tcp_rcv_state_process+0x2f4/0x4560 net/ipv4/tcp_input.c:6343 tcp_v6_do_rcv+0x1224/0x1fd0 net/ipv6/tcp_ipv6.c:1515 tcp_v6_rcv+0x6969/0x7430 net/ipv6/tcp_ipv6.c:1711 ip6_protocol_deliver_rcu+0x1402/0x25f0 net/ipv6/ip6_input.c:422 ip6_input_finish net/ipv6/ip6_input.c:463 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_input+0x12b/0x390 net/ipv6/ip6_input.c:472 dst_input include/net/dst.h:458 [inline] ip6_rcv_finish+0x5fc/0x7f0 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0x1d1/0x460 net/ipv6/ip6_input.c:297 __netif_receive_skb_one_core net/core/dev.c:5384 [inline] __netif_receive_skb+0x1ec/0x640 net/core/dev.c:5498 process_backlog+0x517/0xbd0 net/core/dev.c:6365 __napi_poll+0x13e/0xca0 net/core/dev.c:6912 napi_poll net/core/dev.c:6979 [inline] net_rx_action+0x726/0x14a0 net/core/dev.c:7065 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289 __msan_chain_origin+0x54/0xa0 mm/kmsan/kmsan_instr.c:147 tcp_conn_request+0x1b33/0x4d90 net/ipv4/tcp_input.c:6811 tcp_v6_conn_request+0x3d6/0x500 net/ipv6/tcp_ipv6.c:1183 tcp_rcv_state_process+0x2f4/0x4560 net/ipv4/tcp_input.c:6343 tcp_v6_do_rcv+0x1224/0x1fd0 net/ipv6/tcp_ipv6.c:1515 tcp_v6_rcv+0x6969/0x7430 net/ipv6/tcp_ipv6.c:1711 ip6_protocol_deliver_rcu+0x1402/0x25f0 net/ipv6/ip6_input.c:422 ip6_input_finish net/ipv6/ip6_input.c:463 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_input+0x12b/0x390 net/ipv6/ip6_input.c:472 dst_input include/net/dst.h:458 [inline] ip6_rcv_finish+0x5fc/0x7f0 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0x1d1/0x460 net/ipv6/ip6_input.c:297 __netif_receive_skb_one_core net/core/dev.c:5384 [inline] __netif_receive_skb+0x1ec/0x640 net/core/dev.c:5498 process_backlog+0x517/0xbd0 net/core/dev.c:6365 __napi_poll+0x13e/0xca0 net/core/dev.c:6912 napi_poll net/core/dev.c:6979 [inline] net_rx_action+0x726/0x14a0 net/core/dev.c:7065 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289 __msan_chain_origin+0x54/0xa0 mm/kmsan/kmsan_instr.c:147 tcp_openreq_init_rwin+0xcc6/0x1010 net/ipv4/tcp_minisocks.c:396 tcp_conn_request+0x2bbd/0x4d90 net/ipv4/tcp_input.c:6855 tcp_v6_conn_request+0x3d6/0x500 net/ipv6/tcp_ipv6.c:1183 tcp_rcv_state_process+0x2f4/0x4560 net/ipv4/tcp_input.c:6343 tcp_v6_do_rcv+0x1224/0x1fd0 net/ipv6/tcp_ipv6.c:1515 tcp_v6_rcv+0x6969/0x7430 net/ipv6/tcp_ipv6.c:1711 ip6_protocol_deliver_rcu+0x1402/0x25f0 net/ipv6/ip6_input.c:422 ip6_input_finish net/ipv6/ip6_input.c:463 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_input+0x12b/0x390 net/ipv6/ip6_input.c:472 dst_input include/net/dst.h:458 [inline] ip6_rcv_finish+0x5fc/0x7f0 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0x1d1/0x460 net/ipv6/ip6_input.c:297 __netif_receive_skb_one_core net/core/dev.c:5384 [inline] __netif_receive_skb+0x1ec/0x640 net/core/dev.c:5498 process_backlog+0x517/0xbd0 net/core/dev.c:6365 __napi_poll+0x13e/0xca0 net/core/dev.c:6912 napi_poll net/core/dev.c:6979 [inline] net_rx_action+0x726/0x14a0 net/core/dev.c:7065 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289 __msan_chain_origin+0x54/0xa0 mm/kmsan/kmsan_instr.c:147 tcp_conn_request+0x1b33/0x4d90 net/ipv4/tcp_input.c:6811 tcp_v6_conn_request+0x3d6/0x500 net/ipv6/tcp_ipv6.c:1183 tcp_rcv_state_process+0x2f4/0x4560 net/ipv4/tcp_input.c:6343 tcp_v6_do_rcv+0x1224/0x1fd0 net/ipv6/tcp_ipv6.c:1515 tcp_v6_rcv+0x6969/0x7430 net/ipv6/tcp_ipv6.c:1711 ip6_protocol_deliver_rcu+0x1402/0x25f0 net/ipv6/ip6_input.c:422 ip6_input_finish net/ipv6/ip6_input.c:463 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_input+0x12b/0x390 net/ipv6/ip6_input.c:472 dst_input include/net/dst.h:458 [inline] ip6_rcv_finish+0x5fc/0x7f0 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0x1d1/0x460 net/ipv6/ip6_input.c:297 __netif_receive_skb_one_core net/core/dev.c:5384 [inline] __netif_receive_skb+0x1ec/0x640 net/core/dev.c:5498 process_backlog+0x517/0xbd0 net/core/dev.c:6365 __napi_poll+0x13e/0xca0 net/core/dev.c:6912 napi_poll net/core/dev.c:6979 [inline] net_rx_action+0x726/0x14a0 net/core/dev.c:7065 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289 __msan_chain_origin+0x54/0xa0 mm/kmsan/kmsan_instr.c:147 tcp_openreq_init_rwin+0xcc6/0x1010 net/ipv4/tcp_minisocks.c:396 tcp_conn_request+0x2bbd/0x4d90 net/ipv4/tcp_input.c:6855 tcp_v6_conn_request+0x3d6/0x500 net/ipv6/tcp_ipv6.c:1183 tcp_rcv_state_process+0x2f4/0x4560 net/ipv4/tcp_input.c:6343 tcp_v6_do_rcv+0x1224/0x1fd0 net/ipv6/tcp_ipv6.c:1515 tcp_v6_rcv+0x6969/0x7430 net/ipv6/tcp_ipv6.c:1711 ip6_protocol_deliver_rcu+0x1402/0x25f0 net/ipv6/ip6_input.c:422 ip6_input_finish net/ipv6/ip6_input.c:463 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_input+0x12b/0x390 net/ipv6/ip6_input.c:472 dst_input include/net/dst.h:458 [inline] ip6_rcv_finish+0x5fc/0x7f0 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0x1d1/0x460 net/ipv6/ip6_input.c:297 __netif_receive_skb_one_core net/core/dev.c:5384 [inline] __netif_receive_skb+0x1ec/0x640 net/core/dev.c:5498 process_backlog+0x517/0xbd0 net/core/dev.c:6365 __napi_poll+0x13e/0xca0 net/core/dev.c:6912 napi_poll net/core/dev.c:6979 [inline] net_rx_action+0x726/0x14a0 net/core/dev.c:7065 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:289 __msan_chain_origin+0x54/0xa0 mm/kmsan/kmsan_instr.c:147 tcp_conn_request+0x1b33/0x4d90 net/ipv4/tcp_input.c:6811 tcp_v6_conn_request+0x3d6/0x500 net/ipv6/tcp_ipv6.c:1183 tcp_rcv_state_process+0x2f4/0x4560 net/ipv4/tcp_input.c:6343 tcp_v6_do_rcv+0x1224/0x1fd0 net/ipv6/tcp_ipv6.c:1515 tcp_v6_rcv+0x6969/0x7430 net/ipv6/tcp_ipv6.c:1711 ip6_protocol_deliver_rcu+0x1402/0x25f0 net/ipv6/ip6_input.c:422 ip6_input_finish net/ipv6/ip6_input.c:463 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_input+0x12b/0x390 net/ipv6/ip6_input.c:472 dst_input include/net/dst.h:458 [inline] ip6_rcv_finish+0x5fc/0x7f0 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0x1d1/0x460 net/ipv6/ip6_input.c:297 __netif_receive_skb_one_core net/core/dev.c:5384 [inline] __netif_receive_skb+0x1ec/0x640 net/core/dev.c:5498 process_backlog+0x517/0xbd0 net/core/dev.c:6365 __napi_poll+0x13e/0xca0 net/core/dev.c:6912 napi_poll net/core/dev.c:6979 [inline] net_rx_action+0x726/0x14a0 net/core/dev.c:7065 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 Uninit was created at: kmsan_save_stack_with_flags+0x3c/0x90 mm/kmsan/kmsan.c:121 kmsan_alloc_page+0xd0/0x1e0 mm/kmsan/kmsan_shadow.c:274 __alloc_pages_nodemask+0x827/0xf90 mm/page_alloc.c:5044 alloc_pages_current+0x7b6/0xb60 mm/mempolicy.c:2277 alloc_pages include/linux/gfp.h:561 [inline] alloc_slab_page mm/slub.c:1653 [inline] allocate_slab+0x364/0x1260 mm/slub.c:1793 new_slab mm/slub.c:1856 [inline] new_slab_objects mm/slub.c:2602 [inline] ___slab_alloc+0xd42/0x1930 mm/slub.c:2765 __slab_alloc mm/slub.c:2805 [inline] slab_alloc_node mm/slub.c:2886 [inline] slab_alloc mm/slub.c:2931 [inline] kmem_cache_alloc+0xc68/0x1030 mm/slub.c:2936 reqsk_alloc include/net/request_sock.h:91 [inline] inet_reqsk_alloc+0xaf/0x8c0 net/ipv4/tcp_input.c:6646 tcp_conn_request+0x85d/0x4d90 net/ipv4/tcp_input.c:6786 tcp_v6_conn_request+0x3d6/0x500 net/ipv6/tcp_ipv6.c:1183 tcp_rcv_state_process+0x2f4/0x4560 net/ipv4/tcp_input.c:6343 tcp_v6_do_rcv+0x1224/0x1fd0 net/ipv6/tcp_ipv6.c:1515 tcp_v6_rcv+0x6969/0x7430 net/ipv6/tcp_ipv6.c:1711 ip6_protocol_deliver_rcu+0x1402/0x25f0 net/ipv6/ip6_input.c:422 ip6_input_finish net/ipv6/ip6_input.c:463 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_input+0x12b/0x390 net/ipv6/ip6_input.c:472 dst_input include/net/dst.h:458 [inline] ip6_rcv_finish+0x5fc/0x7f0 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0x1d1/0x460 net/ipv6/ip6_input.c:297 __netif_receive_skb_one_core net/core/dev.c:5384 [inline] __netif_receive_skb+0x1ec/0x640 net/core/dev.c:5498 process_backlog+0x517/0xbd0 net/core/dev.c:6365 __napi_poll+0x13e/0xca0 net/core/dev.c:6912 napi_poll net/core/dev.c:6979 [inline] net_rx_action+0x726/0x14a0 net/core/dev.c:7065 __do_softirq+0x1b9/0x715 kernel/softirq.c:345