./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1745776824 <...> forked to background, child pid 4640 no interfaces have a carrier [ 24.734946][ T4641] 8021q: adding VLAN 0 to HW filter on device bond0 [ 24.747578][ T4641] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.107' (ECDSA) to the list of known hosts. execve("./syz-executor1745776824", ["./syz-executor1745776824"], 0x7ffefb4b6df0 /* 10 vars */) = 0 brk(NULL) = 0x555555df3000 brk(0x555555df3c40) = 0x555555df3c40 arch_prctl(ARCH_SET_FS, 0x555555df3300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1745776824", 4096) = 28 brk(0x555555e14c40) = 0x555555e14c40 brk(0x555555e15000) = 0x555555e15000 mprotect(0x7f6746945000, 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: [ 48.851827][ T5061] ------------[ cut here ]------------ [ 48.857411][ T5061] WARNING: CPU: 1 PID: 5061 at lib/iov_iter.c:629 _copy_from_iter+0x2ae/0xf40 [ 48.866511][ T5061] Modules linked in: [ 48.870423][ T5061] CPU: 1 PID: 5061 Comm: syz-executor174 Not tainted 6.2.0-rc5-syzkaller-00020-g7bf70dbb1882 #0 [ 48.881568][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 48.891781][ T5061] RIP: 0010:_copy_from_iter+0x2ae/0xf40 [ 48.897448][ T5061] Code: 5d 41 5c 41 5d 41 5e 41 5f c3 e8 ad 9e 77 fd be 79 02 00 00 48 c7 c7 60 63 a6 8a e8 3c cb b0 fd e9 55 fe ff ff e8 92 9e 77 fd <0f> 0b 45 31 ff eb 8b e8 86 9e 77 fd 31 ff 89 ee e8 ed 9a 77 fd 40 [ 48.917269][ T5061] RSP: 0018:ffffc90003aff830 EFLAGS: 00010293 [ 48.923440][ T5061] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 48.931580][ T5061] RDX: ffff8880255c1d40 RSI: ffffffff8409c29e RDI: 0000000000000001 [ 48.939662][ T5061] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 48.947721][ T5061] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003affd00 [ 48.955814][ T5061] R13: ffffc90003affd00 R14: ffff888021d7c780 R15: 0000000000000000 [ 48.963889][ T5061] FS: 0000555555df3300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 48.973062][ T5061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.979657][ T5061] CR2: 000000000045ad50 CR3: 00000000269e8000 CR4: 0000000000350ee0 [ 48.987735][ T5061] Call Trace: [ 48.991113][ T5061] [ 48.994042][ T5061] ? csum_and_copy_from_iter+0x12e0/0x12e0 [ 48.999840][ T5061] ? memset+0x24/0x50 [ 49.003904][ T5061] ? __build_skb_around+0x276/0x3a0 [ 49.009141][ T5061] ? __alloc_skb+0x185/0x310 [ 49.013789][ T5061] ? __check_object_size+0x31/0x5a0 [ 49.019094][ T5061] tipc_msg_build+0x2d4/0x10a0 [ 49.024014][ T5061] ? tipc_msg_assemble+0x510/0x510 [ 49.029172][ T5061] ? __tipc_node_link_down+0x1540/0x1540 [ 49.034871][ T5061] ? __local_bh_enable_ip+0xa4/0x130 [ 49.040205][ T5061] __tipc_sendmsg+0xada/0x1870 [ 49.045042][ T5061] ? tipc_sendmcast+0xe60/0xe60 [ 49.049923][ T5061] ? __init_waitqueue_head+0x150/0x150 [ 49.055465][ T5061] ? mark_held_locks+0x9f/0xe0 [ 49.060247][ T5061] ? __local_bh_enable_ip+0xa4/0x130 [ 49.065617][ T5061] tipc_connect+0x57b/0x6b0 [ 49.070265][ T5061] ? tipc_sendmsg+0x70/0x70 [ 49.074863][ T5061] ? bpf_lsm_socket_connect+0x9/0x10 [ 49.080179][ T5061] ? tipc_sendmsg+0x70/0x70 [ 49.084771][ T5061] __sys_connect_file+0x153/0x1a0 [ 49.089911][ T5061] __sys_connect+0x165/0x1a0 [ 49.094600][ T5061] ? __sys_connect_file+0x1a0/0x1a0 [ 49.099847][ T5061] ? _raw_spin_unlock_irq+0x23/0x50 [ 49.105156][ T5061] ? lockdep_hardirqs_on+0x7d/0x100 [ 49.110365][ T5061] ? _raw_spin_unlock_irq+0x2e/0x50 [ 49.115633][ T5061] __x64_sys_connect+0x73/0xb0 [ 49.120512][ T5061] do_syscall_64+0x39/0xb0 [ 49.125008][ T5061] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 49.130962][ T5061] RIP: 0033:0x7f67468d8b19 [ 49.135440][ T5061] 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 [ 49.155211][ T5061] RSP: 002b:00007ffec6ac68f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 49.163700][ T5061] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f67468d8b19 [ 49.171726][ T5061] RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 [ 49.179727][ T5061] RBP: 00007f674689ccc0 R08: 0000000000000000 R09: 0000000000000000 [ 49.187774][ T5061] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f674689cd50 [ 49.195803][ T5061] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 49.203845][ T5061] [ 49.206866][ T5061] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 49.214130][ T5061] CPU: 1 PID: 5061 Comm: syz-executor174 Not tainted 6.2.0-rc5-syzkaller-00020-g7bf70dbb1882 #0 [ 49.224616][ T5061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 49.234677][ T5061] Call Trace: [ 49.237948][ T5061] [ 49.240895][ T5061] dump_stack_lvl+0xd1/0x138 [ 49.245512][ T5061] panic+0x2cc/0x626 [ 49.249507][ T5061] ? panic_print_sys_info.part.0+0x110/0x110 [ 49.255512][ T5061] ? _copy_from_iter+0x2ae/0xf40 [ 49.260452][ T5061] check_panic_on_warn.cold+0x19/0x35 [ 49.265851][ T5061] __warn+0xf2/0x1a0 [ 49.269761][ T5061] ? _copy_from_iter+0x2ae/0xf40 [ 49.274707][ T5061] report_bug+0x1c0/0x210 [ 49.279039][ T5061] handle_bug+0x3c/0x70 [ 49.283197][ T5061] exc_invalid_op+0x18/0x50 [ 49.287702][ T5061] asm_exc_invalid_op+0x1a/0x20 [ 49.292557][ T5061] RIP: 0010:_copy_from_iter+0x2ae/0xf40 [ 49.298102][ T5061] Code: 5d 41 5c 41 5d 41 5e 41 5f c3 e8 ad 9e 77 fd be 79 02 00 00 48 c7 c7 60 63 a6 8a e8 3c cb b0 fd e9 55 fe ff ff e8 92 9e 77 fd <0f> 0b 45 31 ff eb 8b e8 86 9e 77 fd 31 ff 89 ee e8 ed 9a 77 fd 40 [ 49.317813][ T5061] RSP: 0018:ffffc90003aff830 EFLAGS: 00010293 [ 49.323911][ T5061] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 49.331900][ T5061] RDX: ffff8880255c1d40 RSI: ffffffff8409c29e RDI: 0000000000000001 [ 49.339887][ T5061] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 49.347960][ T5061] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003affd00 [ 49.355971][ T5061] R13: ffffc90003affd00 R14: ffff888021d7c780 R15: 0000000000000000 [ 49.363984][ T5061] ? _copy_from_iter+0x2ae/0xf40 [ 49.369024][ T5061] ? csum_and_copy_from_iter+0x12e0/0x12e0 [ 49.374830][ T5061] ? memset+0x24/0x50 [ 49.378830][ T5061] ? __build_skb_around+0x276/0x3a0 [ 49.384037][ T5061] ? __alloc_skb+0x185/0x310 [ 49.388633][ T5061] ? __check_object_size+0x31/0x5a0 [ 49.393837][ T5061] tipc_msg_build+0x2d4/0x10a0 [ 49.398616][ T5061] ? tipc_msg_assemble+0x510/0x510 [ 49.403730][ T5061] ? __tipc_node_link_down+0x1540/0x1540 [ 49.409361][ T5061] ? __local_bh_enable_ip+0xa4/0x130 [ 49.414656][ T5061] __tipc_sendmsg+0xada/0x1870 [ 49.419602][ T5061] ? tipc_sendmcast+0xe60/0xe60 [ 49.424467][ T5061] ? __init_waitqueue_head+0x150/0x150 [ 49.429938][ T5061] ? mark_held_locks+0x9f/0xe0 [ 49.434783][ T5061] ? __local_bh_enable_ip+0xa4/0x130 [ 49.440080][ T5061] tipc_connect+0x57b/0x6b0 [ 49.444589][ T5061] ? tipc_sendmsg+0x70/0x70 [ 49.449107][ T5061] ? bpf_lsm_socket_connect+0x9/0x10 [ 49.454432][ T5061] ? tipc_sendmsg+0x70/0x70 [ 49.458947][ T5061] __sys_connect_file+0x153/0x1a0 [ 49.464073][ T5061] __sys_connect+0x165/0x1a0 [ 49.468679][ T5061] ? __sys_connect_file+0x1a0/0x1a0 [ 49.473884][ T5061] ? _raw_spin_unlock_irq+0x23/0x50 [ 49.479081][ T5061] ? lockdep_hardirqs_on+0x7d/0x100 [ 49.484276][ T5061] ? _raw_spin_unlock_irq+0x2e/0x50 [ 49.489472][ T5061] __x64_sys_connect+0x73/0xb0 [ 49.494235][ T5061] do_syscall_64+0x39/0xb0 [ 49.498650][ T5061] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 49.504538][ T5061] RIP: 0033:0x7f67468d8b19 [ 49.508954][ T5061] 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 [ 49.528656][ T5061] RSP: 002b:00007ffec6ac68f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 49.537171][ T5061] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f67468d8b19 [ 49.545142][ T5061] RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 [ 49.553110][ T5061] RBP: 00007f674689ccc0 R08: 0000000000000000 R09: 0000000000000000 [ 49.561164][ T5061] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f674689cd50 [ 49.569130][ T5061] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 49.577116][ T5061] [ 49.580744][ T5061] Kernel Offset: disabled [ 49.585143][ T5061] Rebooting in 86400 seconds..