vcan0: j1939_xtp_rx_abort_one: 0xffff888078f5f400: 0x00000: (8) Duplicate sequence number (and software is not able to recover) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 21 at net/can/j1939/transport.c:1096 j1939_session_deactivate net/can/j1939/transport.c:1096 [inline] WARNING: CPU: 1 PID: 21 at net/can/j1939/transport.c:1096 j1939_session_deactivate_activate_next+0x95/0xd3 net/can/j1939/transport.c:1106 Modules linked in: CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 6.0.0-rc5-next-20220916-syzkaller-07639-gd5538ab91d3a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:j1939_session_deactivate net/can/j1939/transport.c:1096 [inline] RIP: 0010:j1939_session_deactivate_activate_next+0x95/0xd3 net/can/j1939/transport.c:1106 Code: 03 38 d0 7c 0c 84 d2 74 08 4c 89 ef e8 28 f4 49 f8 8b 5d 28 bf 01 00 00 00 89 de e8 59 fa fd f7 83 fb 01 77 07 e8 7f fd fd f7 <0f> 0b e8 78 fd fd f7 48 89 ef e8 10 f5 a9 fe 4c 89 e7 89 c3 e8 e6 RSP: 0018:ffffc900001b79a0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000100 RDX: ffff888011be1d40 RSI: ffffffff897d7011 RDI: 0000000000000005 RBP: ffff888078f5f400 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000001 R11: 6a203a306e616376 R12: ffff888064fc5070 R13: ffff888078f5f428 R14: ffff888063907818 R15: ffffffff8b05a6a0 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe29f0fa98 CR3: 00000000734d7000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: j1939_xtp_rx_abort_one.cold+0x20b/0x33c net/can/j1939/transport.c:1346 j1939_xtp_rx_abort net/can/j1939/transport.c:1357 [inline] j1939_tp_cmd_recv net/can/j1939/transport.c:2106 [inline] j1939_tp_recv+0xb28/0xcb0 net/can/j1939/transport.c:2139 j1939_can_recv+0x6ff/0x9a0 net/can/j1939/main.c:108 deliver net/can/af_can.c:574 [inline] can_rcv_filter+0x5d4/0x8d0 net/can/af_can.c:608 can_receive+0x31d/0x580 net/can/af_can.c:665 can_rcv+0x120/0x1c0 net/can/af_can.c:696 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5485 __netif_receive_skb+0x1f/0x1c0 net/core/dev.c:5599 process_backlog+0x3a0/0x7c0 net/core/dev.c:5927 __napi_poll+0xb3/0x6d0 net/core/dev.c:6511 napi_poll net/core/dev.c:6578 [inline] net_rx_action+0x9c1/0xd90 net/core/dev.c:6689 __do_softirq+0x1d3/0x9c6 kernel/softirq.c:571 run_ksoftirqd kernel/softirq.c:934 [inline] run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306