./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor160726941 <...> forked to background, child pid 4646 [ 35.454328][ T4647] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.464351][ T4647] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: [ 36.014981][ T4743] sshd (4743) used greatest stack depth: 22344 bytes left OK syzkaller Warning: Permanently added '10.128.1.79' (ECDSA) to the list of known hosts. execve("./syz-executor160726941", ["./syz-executor160726941"], 0x7ffff7810790 /* 10 vars */) = 0 brk(NULL) = 0x5555567b7000 brk(0x5555567b7c40) = 0x5555567b7c40 arch_prctl(ARCH_SET_FS, 0x5555567b7300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor160726941", 4096) = 27 brk(0x5555567d8c40) = 0x5555567d8c40 brk(0x5555567d9000) = 0x5555567d9000 mprotect(0x7fd210c12000, 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: [ 58.102624][ T5079] ------------[ cut here ]------------ [ 58.108219][ T5079] WARNING: CPU: 0 PID: 5079 at lib/iov_iter.c:629 _copy_from_iter+0x2ae/0xf40 [ 58.117399][ T5079] Modules linked in: [ 58.121312][ T5079] CPU: 0 PID: 5079 Comm: syz-executor160 Not tainted 6.2.0-rc1-syzkaller #0 [ 58.130141][ T5079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 58.140291][ T5079] RIP: 0010:_copy_from_iter+0x2ae/0xf40 [ 58.145945][ T5079] Code: 5d 41 5c 41 5d 41 5e 41 5f c3 e8 9d da 77 fd be 79 02 00 00 48 c7 c7 a0 63 a6 8a e8 0c 06 b1 fd e9 55 fe ff ff e8 82 da 77 fd <0f> 0b 45 31 ff eb 8b e8 76 da 77 fd 31 ff 89 ee e8 dd d6 77 fd 40 [ 58.165703][ T5079] RSP: 0018:ffffc90003c5f830 EFLAGS: 00010293 [ 58.171882][ T5079] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 58.179868][ T5079] RDX: ffff88801faad7c0 RSI: ffffffff840977be RDI: 0000000000000001 [ 58.187934][ T5079] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 58.195995][ T5079] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003c5fd00 [ 58.204066][ T5079] R13: ffffc90003c5fd00 R14: ffff888079d50f00 R15: 0000000000000000 [ 58.212096][ T5079] FS: 00005555567b7300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 58.221037][ T5079] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.227668][ T5079] CR2: 0000000020000102 CR3: 000000001c8bb000 CR4: 00000000003506f0 [ 58.235697][ T5079] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.243714][ T5079] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.251744][ T5079] Call Trace: [ 58.255027][ T5079] [ 58.257954][ T5079] ? csum_and_copy_from_iter+0x12e0/0x12e0 [ 58.264175][ T5079] ? memset+0x24/0x50 [ 58.268179][ T5079] ? __build_skb_around+0x276/0x3a0 [ 58.273467][ T5079] ? __alloc_skb+0x185/0x310 [ 58.278080][ T5079] ? __check_object_size+0x31/0x5a0 [ 58.283355][ T5079] tipc_msg_build+0x2d4/0x10a0 [ 58.288162][ T5079] ? tipc_msg_assemble+0x510/0x510 [ 58.293337][ T5079] ? __tipc_node_link_down+0x1540/0x1540 [ 58.298992][ T5079] ? __local_bh_enable_ip+0xa4/0x130 [ 58.304340][ T5079] __tipc_sendmsg+0xada/0x1870 [ 58.309137][ T5079] ? tipc_sendmcast+0xe60/0xe60 [ 58.314051][ T5079] ? __init_waitqueue_head+0x150/0x150 [ 58.319546][ T5079] ? mark_held_locks+0x9f/0xe0 [ 58.324385][ T5079] ? __local_bh_enable_ip+0xa4/0x130 [ 58.329706][ T5079] tipc_connect+0x57b/0x6b0 [ 58.334314][ T5079] ? tipc_sendmsg+0x70/0x70 [ 58.338859][ T5079] ? bpf_lsm_socket_connect+0x9/0x10 [ 58.344197][ T5079] ? tipc_sendmsg+0x70/0x70 [ 58.348725][ T5079] __sys_connect_file+0x153/0x1a0 [ 58.353814][ T5079] __sys_connect+0x165/0x1a0 [ 58.358527][ T5079] ? __sys_connect_file+0x1a0/0x1a0 [ 58.363794][ T5079] ? _raw_spin_unlock_irq+0x23/0x50 [ 58.369017][ T5079] ? lockdep_hardirqs_on+0x7d/0x100 [ 58.374263][ T5079] ? _raw_spin_unlock_irq+0x2e/0x50 [ 58.379481][ T5079] __x64_sys_connect+0x73/0xb0 [ 58.384314][ T5079] do_syscall_64+0x39/0xb0 [ 58.388761][ T5079] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.394698][ T5079] RIP: 0033:0x7fd210ba5b19 [ 58.399125][ T5079] 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 [ 58.418793][ T5079] RSP: 002b:00007ffc37f66ea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 58.427257][ T5079] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd210ba5b19 [ 58.435267][ T5079] RDX: 0000000000000010 RSI: 0000000020000100 RDI: 0000000000000003 [ 58.443276][ T5079] RBP: 00007fd210b69cc0 R08: 0000000000000000 R09: 0000000000000000 [ 58.451241][ T5079] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd210b69d50 [ 58.459276][ T5079] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 58.467338][ T5079] [ 58.470365][ T5079] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 58.477632][ T5079] CPU: 0 PID: 5079 Comm: syz-executor160 Not tainted 6.2.0-rc1-syzkaller #0 [ 58.486292][ T5079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 58.496336][ T5079] Call Trace: [ 58.499604][ T5079] [ 58.502523][ T5079] dump_stack_lvl+0xd1/0x138 [ 58.507111][ T5079] panic+0x2cc/0x626 [ 58.511004][ T5079] ? panic_print_sys_info.part.0+0x110/0x110 [ 58.516986][ T5079] ? _copy_from_iter+0x2ae/0xf40 [ 58.521920][ T5079] check_panic_on_warn.cold+0x19/0x35 [ 58.527288][ T5079] __warn+0xf2/0x1a0 [ 58.531177][ T5079] ? _copy_from_iter+0x2ae/0xf40 [ 58.536108][ T5079] report_bug+0x1c0/0x210 [ 58.540432][ T5079] handle_bug+0x3c/0x70 [ 58.544585][ T5079] exc_invalid_op+0x18/0x50 [ 58.549083][ T5079] asm_exc_invalid_op+0x1a/0x20 [ 58.553924][ T5079] RIP: 0010:_copy_from_iter+0x2ae/0xf40 [ 58.559462][ T5079] Code: 5d 41 5c 41 5d 41 5e 41 5f c3 e8 9d da 77 fd be 79 02 00 00 48 c7 c7 a0 63 a6 8a e8 0c 06 b1 fd e9 55 fe ff ff e8 82 da 77 fd <0f> 0b 45 31 ff eb 8b e8 76 da 77 fd 31 ff 89 ee e8 dd d6 77 fd 40 [ 58.579068][ T5079] RSP: 0018:ffffc90003c5f830 EFLAGS: 00010293 [ 58.585161][ T5079] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 58.593156][ T5079] RDX: ffff88801faad7c0 RSI: ffffffff840977be RDI: 0000000000000001 [ 58.601148][ T5079] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 58.609133][ T5079] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003c5fd00 [ 58.617122][ T5079] R13: ffffc90003c5fd00 R14: ffff888079d50f00 R15: 0000000000000000 [ 58.625115][ T5079] ? _copy_from_iter+0x2ae/0xf40 [ 58.630087][ T5079] ? csum_and_copy_from_iter+0x12e0/0x12e0 [ 58.635908][ T5079] ? memset+0x24/0x50 [ 58.639914][ T5079] ? __build_skb_around+0x276/0x3a0 [ 58.645136][ T5079] ? __alloc_skb+0x185/0x310 [ 58.649746][ T5079] ? __check_object_size+0x31/0x5a0 [ 58.654969][ T5079] tipc_msg_build+0x2d4/0x10a0 [ 58.659768][ T5079] ? tipc_msg_assemble+0x510/0x510 [ 58.664910][ T5079] ? __tipc_node_link_down+0x1540/0x1540 [ 58.670556][ T5079] ? __local_bh_enable_ip+0xa4/0x130 [ 58.675871][ T5079] __tipc_sendmsg+0xada/0x1870 [ 58.680756][ T5079] ? tipc_sendmcast+0xe60/0xe60 [ 58.685643][ T5079] ? __init_waitqueue_head+0x150/0x150 [ 58.691135][ T5079] ? mark_held_locks+0x9f/0xe0 [ 58.695913][ T5079] ? __local_bh_enable_ip+0xa4/0x130 [ 58.701214][ T5079] tipc_connect+0x57b/0x6b0 [ 58.705740][ T5079] ? tipc_sendmsg+0x70/0x70 [ 58.710288][ T5079] ? bpf_lsm_socket_connect+0x9/0x10 [ 58.715602][ T5079] ? tipc_sendmsg+0x70/0x70 [ 58.720125][ T5079] __sys_connect_file+0x153/0x1a0 [ 58.725177][ T5079] __sys_connect+0x165/0x1a0 [ 58.729788][ T5079] ? __sys_connect_file+0x1a0/0x1a0 [ 58.735021][ T5079] ? _raw_spin_unlock_irq+0x23/0x50 [ 58.740237][ T5079] ? lockdep_hardirqs_on+0x7d/0x100 [ 58.745450][ T5079] ? _raw_spin_unlock_irq+0x2e/0x50 [ 58.750671][ T5079] __x64_sys_connect+0x73/0xb0 [ 58.755459][ T5079] do_syscall_64+0x39/0xb0 [ 58.759899][ T5079] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.765819][ T5079] RIP: 0033:0x7fd210ba5b19 [ 58.770243][ T5079] 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 [ 58.789861][ T5079] RSP: 002b:00007ffc37f66ea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 58.798284][ T5079] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd210ba5b19 [ 58.806265][ T5079] RDX: 0000000000000010 RSI: 0000000020000100 RDI: 0000000000000003 [ 58.814242][ T5079] RBP: 00007fd210b69cc0 R08: 0000000000000000 R09: 0000000000000000 [ 58.822217][ T5079] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd210b69d50 [ 58.830192][ T5079] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 58.838185][ T5079] [ 58.841366][ T5079] Kernel Offset: disabled [ 58.845768][ T5079] Rebooting in 86400 seconds..