vcan0: j1939_xtp_rx_abort_one: 0xffff888075783c00: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. vcan0: j1939_xtp_rx_abort_one: 0xffff888077be6400: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5083 at net/can/j1939/transport.c:1098 j1939_session_deactivate net/can/j1939/transport.c:1098 [inline] WARNING: CPU: 1 PID: 5083 at net/can/j1939/transport.c:1098 j1939_session_deactivate_activate_next+0x95/0xd3 net/can/j1939/transport.c:1108 Modules linked in: CPU: 1 PID: 5083 Comm: syz-fuzzer Not tainted 6.2.0-rc5-syzkaller-00013-g2475bf0250de #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:j1939_session_deactivate net/can/j1939/transport.c:1098 [inline] RIP: 0010:j1939_session_deactivate_activate_next+0x95/0xd3 net/can/j1939/transport.c:1108 Code: 03 38 d0 7c 0c 84 d2 74 08 4c 89 ef e8 77 22 cc f7 8b 5d 28 bf 01 00 00 00 89 de e8 28 14 7e f7 83 fb 01 77 07 e8 6e 17 7e f7 <0f> 0b e8 67 17 7e f7 48 89 ef e8 1f 4e c8 fe 4c 89 e7 89 c3 e8 95 RSP: 0018:ffffc900001e0aa8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000100 RDX: ffff88807782ba80 RSI: ffffffff8a0349c2 RDI: 0000000000000005 RBP: ffff888077be6400 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888018845070 R13: ffff888077be6428 R14: ffffffff8b702c60 R15: 0000000000000003 FS: 000000c006b52090(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f94d7185058 CR3: 0000000022c9a000 CR4: 00000000003526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: j1939_xtp_rx_abort_one.cold+0x301/0x403 net/can/j1939/transport.c:1348 j1939_xtp_rx_abort net/can/j1939/transport.c:1359 [inline] j1939_tp_cmd_recv net/can/j1939/transport.c:2108 [inline] j1939_tp_recv+0xb63/0xcd0 net/can/j1939/transport.c:2141 j1939_can_recv net/can/j1939/main.c:112 [inline] j1939_can_recv+0x78e/0xa30 net/can/j1939/main.c:38 deliver net/can/af_can.c:572 [inline] can_rcv_filter+0x5d4/0x8d0 net/can/af_can.c:606 can_receive+0x31d/0x580 net/can/af_can.c:663 can_rcv+0x1e1/0x230 net/can/af_can.c:687 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5482 __netif_receive_skb+0x1f/0x1c0 net/core/dev.c:5596 process_backlog+0x3e4/0x810 net/core/dev.c:5924 __napi_poll+0xb8/0x770 net/core/dev.c:6485 napi_poll net/core/dev.c:6552 [inline] net_rx_action+0xa00/0xde0 net/core/dev.c:6663 __do_softirq+0x1fb/0xadc kernel/softirq.c:571 do_softirq.part.0+0xde/0x130 kernel/softirq.c:472 do_softirq kernel/softirq.c:464 [inline] __local_bh_enable_ip+0x106/0x130 kernel/softirq.c:396 local_bh_enable include/linux/bottom_half.h:33 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:834 [inline] ip_finish_output2+0x7dc/0x2180 net/ipv4/ip_output.c:229 __ip_finish_output net/ipv4/ip_output.c:306 [inline] __ip_finish_output+0x396/0x650 net/ipv4/ip_output.c:288 ip_finish_output+0x31/0x280 net/ipv4/ip_output.c:316 NF_HOOK_COND include/linux/netfilter.h:291 [inline] ip_output+0x1a3/0x320 net/ipv4/ip_output.c:430 dst_output include/net/dst.h:444 [inline] ip_local_out net/ipv4/ip_output.c:126 [inline] __ip_queue_xmit+0x8e2/0x1bf0 net/ipv4/ip_output.c:532 __tcp_transmit_skb+0x1967/0x3800 net/ipv4/tcp_output.c:1399 tcp_transmit_skb net/ipv4/tcp_output.c:1417 [inline] tcp_write_xmit+0x1025/0x6140 net/ipv4/tcp_output.c:2693 __tcp_push_pending_frames+0xae/0x390 net/ipv4/tcp_output.c:2877 tcp_push+0x49d/0x720 net/ipv4/tcp.c:730 tcp_sendmsg_locked+0x1fef/0x2950 net/ipv4/tcp.c:1456 tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1484 inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:827 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xd3/0x120 net/socket.c:734 sock_write_iter+0x295/0x3d0 net/socket.c:1108 call_write_iter include/linux/fs.h:2189 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x9ed/0xdd0 fs/read_write.c:584 ksys_write+0x1ec/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x4adffb Code: e8 8a 58 fb ff eb 88 cc cc cc cc cc cc cc cc e8 9b 9c fb ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 RSP: 002b:000000c00861b3c0 EFLAGS: 00000206 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000c000042800 RCX: 00000000004adffb RDX: 00000000000000f0 RSI: 000000c00000a200 RDI: 0000000000000003 RBP: 000000c00861b410 R08: 0000000000000001 R09: 000000c0001acf00 R10: 00000000000000f0 R11: 0000000000000206 R12: 000000c00861b4a0 R13: 0000000000000000 R14: 000000c002ff5520 R15: 000000000000007f