vcan0: j1939_xtp_rx_abort_one: 0xffff888042c20c00: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. vcan0: j1939_xtp_rx_abort_one: 0xffff888042c21000: 0x00000: (3) A timeout occurred and this is the connection abort to close the session. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 29 at net/can/j1939/transport.c:1090 j1939_session_deactivate+0xaf/0xd0 net/can/j1939/transport.c:1090 Modules linked in: CPU: 0 PID: 29 Comm: kcompactd0 Not tainted 5.17.0-rc2-next-20220201-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:j1939_session_deactivate+0xaf/0xd0 net/can/j1939/transport.c:1090 Code: fd 01 76 21 e8 72 ec 42 f9 48 89 ef e8 2a fc ff ff 4c 89 e7 41 89 c5 e8 ef 4b 27 01 44 89 e8 5d 41 5c 41 5d c3 e8 51 ec 42 f9 <0f> 0b eb d6 4c 89 ef e8 95 53 8e f9 eb b5 48 89 ef e8 9b 53 8e f9 RSP: 0018:ffffc90000007ab0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000100 RDX: ffff888011a73a80 RSI: ffffffff8835b91f RDI: 0000000000000003 RBP: ffff888042c21000 R08: 0000000000000001 R09: ffff888042c2102b R10: ffffffff8835b8f3 R11: 000000000000001d R12: ffff88801c585070 R13: 0000000000000001 R14: ffff88807b088818 R15: ffffffff8ac3e6c0 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555629888 CR3: 0000000045d03000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: j1939_session_deactivate_activate_next+0x12/0x35 net/can/j1939/transport.c:1100 j1939_xtp_rx_abort_one.cold+0x20b/0x33c net/can/j1939/transport.c:1340 j1939_xtp_rx_abort net/can/j1939/transport.c:1352 [inline] j1939_tp_cmd_recv net/can/j1939/transport.c:2100 [inline] j1939_tp_recv+0xb3d/0xcb0 net/can/j1939/transport.c:2133 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:5351 __netif_receive_skb+0x24/0x1b0 net/core/dev.c:5465 process_backlog+0x3a0/0x800 net/core/dev.c:5797 __napi_poll+0xb3/0x6e0 net/core/dev.c:6365 napi_poll net/core/dev.c:6432 [inline] net_rx_action+0x8ec/0xc60 net/core/dev.c:6519 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:finish_task_switch.isra.0+0x323/0xb80 kernel/sched/core.c:4867 Code: 33 e0 08 08 85 c0 75 02 0f 0b 48 85 db 0f 85 25 01 00 00 4c 89 f7 e8 fc f7 ff ff e8 27 be 2d 00 fb 65 48 8b 1c 25 00 70 02 00 <48> 8d bb 88 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 RSP: 0018:ffffc90000e4fb30 EFLAGS: 00000206 RAX: 0000000000017dbd RBX: ffff888011a73a80 RCX: 1ffffffff1b2a879 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000e4fb78 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817eeb38 R11: 0000000000000001 R12: ffff8880b9c3ab98 R13: ffff888011a757c0 R14: ffff8880b9c39e40 R15: ffff8880b9c3a878 context_switch kernel/sched/core.c:4990 [inline] __schedule+0xaba/0x4db0 kernel/sched/core.c:6296 schedule+0xd2/0x260 kernel/sched/core.c:6369 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881 freezable_schedule_timeout include/linux/freezer.h:192 [inline] kcompactd+0xa5d/0xf30 mm/compaction.c:2937 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess): 0: 33 e0 xor %eax,%esp 2: 08 08 or %cl,(%rax) 4: 85 c0 test %eax,%eax 6: 75 02 jne 0xa 8: 0f 0b ud2 a: 48 85 db test %rbx,%rbx d: 0f 85 25 01 00 00 jne 0x138 13: 4c 89 f7 mov %r14,%rdi 16: e8 fc f7 ff ff callq 0xfffff817 1b: e8 27 be 2d 00 callq 0x2dbe47 20: fb sti 21: 65 48 8b 1c 25 00 70 mov %gs:0x27000,%rbx 28: 02 00 * 2a: 48 8d bb 88 15 00 00 lea 0x1588(%rbx),%rdi <-- trapping instruction 31: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 38: fc ff df 3b: 48 89 fa mov %rdi,%rdx 3e: 48 rex.W 3f: c1 .byte 0xc1