./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3841481314 <...> DUID 00:04:64:fe:60:40:6b:21:45:e2:2b:76:87:02:d2:43:fb:60 forked to background, child pid 4647 [ 35.415553][ T4648] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.445227][ T4648] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.107' (ECDSA) to the list of known hosts. execve("./syz-executor3841481314", ["./syz-executor3841481314"], 0x7ffcbf8ae070 /* 10 vars */) = 0 brk(NULL) = 0x555556c67000 brk(0x555556c67c40) = 0x555556c67c40 arch_prctl(ARCH_SET_FS, 0x555556c67300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3841481314", 4096) = 28 brk(0x555556c88c40) = 0x555556c88c40 brk(0x555556c89000) = 0x555556c89000 mprotect(0x7f00ee01c000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 socket(AF_TIPC, SOCK_STREAM, 0) = 3 syzkaller login: [ 61.467585][ T5073] ------------[ cut here ]------------ [ 61.473304][ T5073] WARNING: CPU: 0 PID: 5073 at lib/iov_iter.c:629 _copy_from_iter+0x2ae/0xf40 [ 61.483023][ T5073] Modules linked in: [ 61.487217][ T5073] CPU: 0 PID: 5073 Comm: syz-executor384 Not tainted 6.1.0-syzkaller-11778-gc183e6c3ec34 #0 [ 61.497523][ T5073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 61.507808][ T5073] RIP: 0010:_copy_from_iter+0x2ae/0xf40 [ 61.513382][ T5073] Code: 5d 41 5c 41 5d 41 5e 41 5f c3 e8 fd ea 77 fd be 79 02 00 00 48 c7 c7 60 61 a6 8a e8 1c 10 b1 fd e9 55 fe ff ff e8 e2 ea 77 fd <0f> 0b 45 31 ff eb 8b e8 d6 ea 77 fd 31 ff 89 ee e8 3d e7 77 fd 40 [ 61.533712][ T5073] RSP: 0018:ffffc900039ff830 EFLAGS: 00010293 [ 61.539981][ T5073] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 61.548130][ T5073] RDX: ffff8880205d57c0 RSI: ffffffff840966fe RDI: 0000000000000001 [ 61.556132][ T5073] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 61.564188][ T5073] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc900039ffd00 [ 61.572225][ T5073] R13: ffffc900039ffd00 R14: ffff888021a29900 R15: 0000000000000000 [ 61.580358][ T5073] FS: 0000555556c67300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 61.589443][ T5073] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.596028][ T5073] CR2: 00007ffdf0d2e980 CR3: 000000007ce90000 CR4: 00000000003506e0 [ 61.604091][ T5073] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.612205][ T5073] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.620677][ T5073] Call Trace: [ 61.623969][ T5073] [ 61.626970][ T5073] ? csum_and_copy_from_iter+0x12e0/0x12e0 [ 61.632804][ T5073] ? memset+0x24/0x50 [ 61.636842][ T5073] ? __build_skb_around+0x276/0x3a0 [ 61.642076][ T5073] ? __alloc_skb+0x185/0x310 [ 61.646723][ T5073] ? __check_object_size+0x31/0x5a0 [ 61.651955][ T5073] tipc_msg_build+0x2d4/0x10a0 [ 61.656792][ T5073] ? tipc_msg_assemble+0x510/0x510 [ 61.661932][ T5073] ? __tipc_node_link_down+0x1540/0x1540 [ 61.667637][ T5073] ? __local_bh_enable_ip+0xa4/0x130 [ 61.672976][ T5073] __tipc_sendmsg+0xada/0x1870 [ 61.677879][ T5073] ? tipc_sendmcast+0xe60/0xe60 [ 61.682777][ T5073] ? __init_waitqueue_head+0x150/0x150 [ 61.688532][ T5073] ? mark_held_locks+0x9f/0xe0 [ 61.693398][ T5073] ? __local_bh_enable_ip+0xa4/0x130 [ 61.698740][ T5073] tipc_connect+0x57b/0x6b0 [ 61.703278][ T5073] ? tipc_sendmsg+0x70/0x70 [ 61.707855][ T5073] ? bpf_lsm_socket_connect+0x9/0x10 [ 61.713172][ T5073] ? tipc_sendmsg+0x70/0x70 [ 61.717734][ T5073] __sys_connect_file+0x153/0x1a0 [ 61.722970][ T5073] __sys_connect+0x165/0x1a0 [ 61.727620][ T5073] ? __sys_connect_file+0x1a0/0x1a0 [ 61.732855][ T5073] ? _raw_spin_unlock_irq+0x23/0x50 [ 61.738211][ T5073] ? lockdep_hardirqs_on+0x7d/0x100 [ 61.743449][ T5073] ? _raw_spin_unlock_irq+0x2e/0x50 [ 61.748772][ T5073] __x64_sys_connect+0x73/0xb0 [ 61.753578][ T5073] do_syscall_64+0x39/0xb0 [ 61.758056][ T5073] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.763986][ T5073] RIP: 0033:0x7f00edfafb19 [ 61.768459][ T5073] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 61.788132][ T5073] RSP: 002b:00007ffdf0d2fa38 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 61.796619][ T5073] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f00edfafb19 [ 61.804618][ T5073] RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 [ 61.812691][ T5073] RBP: 00007f00edf73cc0 R08: 0000000000000000 R09: 0000000000000000 [ 61.820734][ T5073] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f00edf73d50 [ 61.828765][ T5073] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 61.836807][ T5073] [ 61.839831][ T5073] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 61.847101][ T5073] CPU: 1 PID: 5073 Comm: syz-executor384 Not tainted 6.1.0-syzkaller-11778-gc183e6c3ec34 #0 [ 61.857164][ T5073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 61.867299][ T5073] Call Trace: [ 61.870570][ T5073] [ 61.873497][ T5073] dump_stack_lvl+0xd1/0x138 [ 61.878089][ T5073] panic+0x2cc/0x626 [ 61.881986][ T5073] ? panic_print_sys_info.part.0+0x110/0x110 [ 61.887972][ T5073] ? _copy_from_iter+0x2ae/0xf40 [ 61.893364][ T5073] check_panic_on_warn.cold+0x19/0x35 [ 61.898758][ T5073] __warn+0xf2/0x1a0 [ 61.902656][ T5073] ? _copy_from_iter+0x2ae/0xf40 [ 61.907589][ T5073] report_bug+0x1c0/0x210 [ 61.911919][ T5073] handle_bug+0x3c/0x70 [ 61.916072][ T5073] exc_invalid_op+0x18/0x50 [ 61.920586][ T5073] asm_exc_invalid_op+0x1a/0x20 [ 61.925464][ T5073] RIP: 0010:_copy_from_iter+0x2ae/0xf40 [ 61.931035][ T5073] Code: 5d 41 5c 41 5d 41 5e 41 5f c3 e8 fd ea 77 fd be 79 02 00 00 48 c7 c7 60 61 a6 8a e8 1c 10 b1 fd e9 55 fe ff ff e8 e2 ea 77 fd <0f> 0b 45 31 ff eb 8b e8 d6 ea 77 fd 31 ff 89 ee e8 3d e7 77 fd 40 [ 61.950688][ T5073] RSP: 0018:ffffc900039ff830 EFLAGS: 00010293 [ 61.956776][ T5073] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 61.964764][ T5073] RDX: ffff8880205d57c0 RSI: ffffffff840966fe RDI: 0000000000000001 [ 61.972752][ T5073] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 61.980740][ T5073] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc900039ffd00 [ 61.988744][ T5073] R13: ffffc900039ffd00 R14: ffff888021a29900 R15: 0000000000000000 [ 61.996837][ T5073] ? _copy_from_iter+0x2ae/0xf40 [ 62.001811][ T5073] ? csum_and_copy_from_iter+0x12e0/0x12e0 [ 62.007635][ T5073] ? memset+0x24/0x50 [ 62.011644][ T5073] ? __build_skb_around+0x276/0x3a0 [ 62.016957][ T5073] ? __alloc_skb+0x185/0x310 [ 62.021578][ T5073] ? __check_object_size+0x31/0x5a0 [ 62.026979][ T5073] tipc_msg_build+0x2d4/0x10a0 [ 62.031784][ T5073] ? tipc_msg_assemble+0x510/0x510 [ 62.036953][ T5073] ? __tipc_node_link_down+0x1540/0x1540 [ 62.042625][ T5073] ? __local_bh_enable_ip+0xa4/0x130 [ 62.047944][ T5073] __tipc_sendmsg+0xada/0x1870 [ 62.052755][ T5073] ? tipc_sendmcast+0xe60/0xe60 [ 62.057639][ T5073] ? __init_waitqueue_head+0x150/0x150 [ 62.063138][ T5073] ? mark_held_locks+0x9f/0xe0 [ 62.067953][ T5073] ? __local_bh_enable_ip+0xa4/0x130 [ 62.073435][ T5073] tipc_connect+0x57b/0x6b0 [ 62.078083][ T5073] ? tipc_sendmsg+0x70/0x70 [ 62.082645][ T5073] ? bpf_lsm_socket_connect+0x9/0x10 [ 62.087986][ T5073] ? tipc_sendmsg+0x70/0x70 [ 62.092693][ T5073] __sys_connect_file+0x153/0x1a0 [ 62.097758][ T5073] __sys_connect+0x165/0x1a0 [ 62.102729][ T5073] ? __sys_connect_file+0x1a0/0x1a0 [ 62.107964][ T5073] ? _raw_spin_unlock_irq+0x23/0x50 [ 62.113186][ T5073] ? lockdep_hardirqs_on+0x7d/0x100 [ 62.118417][ T5073] ? _raw_spin_unlock_irq+0x2e/0x50 [ 62.123639][ T5073] __x64_sys_connect+0x73/0xb0 [ 62.128431][ T5073] do_syscall_64+0x39/0xb0 [ 62.132874][ T5073] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.138798][ T5073] RIP: 0033:0x7f00edfafb19 [ 62.143229][ T5073] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 62.162853][ T5073] RSP: 002b:00007ffdf0d2fa38 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 62.171373][ T5073] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f00edfafb19 [ 62.179359][ T5073] RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 [ 62.187342][ T5073] RBP: 00007f00edf73cc0 R08: 0000000000000000 R09: 0000000000000000 [ 62.195326][ T5073] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f00edf73d50 [ 62.203311][ T5073] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 62.211311][ T5073] [ 62.214493][ T5073] Kernel Offset: disabled [ 62.218891][ T5073] Rebooting in 86400 seconds..