./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor391897952 <...> Warning: Permanently added '10.128.1.64' (ED25519) to the list of known hosts. execve("./syz-executor391897952", ["./syz-executor391897952"], 0x7ffc89683f00 /* 10 vars */) = 0 brk(NULL) = 0x55556e9e9000 brk(0x55556e9e9d00) = 0x55556e9e9d00 arch_prctl(ARCH_SET_FS, 0x55556e9e9380) = 0 set_tid_address(0x55556e9e9650) = 5101 set_robust_list(0x55556e9e9660, 24) = 0 rseq(0x55556e9e9ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor391897952", 4096) = 27 getrandom("\xef\x80\xfa\xda\x2b\x4a\x10\x29", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556e9e9d00 brk(0x55556ea0ad00) = 0x55556ea0ad00 brk(0x55556ea0b000) = 0x55556ea0b000 mprotect(0x7f04f6908000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556e9e9650) = 5102 ./strace-static-x86_64: Process 5102 attached [pid 5102] set_robust_list(0x55556e9e9660, 24) = 0 [pid 5102] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5102] setsid() = 1 [pid 5102] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5102] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5102] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5102] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5102] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5102] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5102] unshare(CLONE_NEWNS) = 0 [pid 5102] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5102] unshare(CLONE_NEWIPC) = 0 [pid 5102] unshare(CLONE_NEWCGROUP) = 0 [pid 5102] unshare(CLONE_NEWUTS) = 0 [pid 5102] unshare(CLONE_SYSVSEM) = 0 [pid 5102] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "16777216", 8) = 8 [pid 5102] close(3) = 0 [pid 5102] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "536870912", 9) = 9 [pid 5102] close(3) = 0 [pid 5102] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "1024", 4) = 4 [pid 5102] close(3) = 0 [pid 5102] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "8192", 4) = 4 [pid 5102] close(3) = 0 [pid 5102] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "1024", 4) = 4 [pid 5102] close(3) = 0 [pid 5102] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "1024", 4) = 4 [pid 5102] close(3) = 0 [pid 5102] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5102] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5102] close(3) = 0 [pid 5102] getpid() = 1 [pid 5102] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 90 90 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 44 89 f9 [ 86.674836][ T5112] RSP: 0018:ffffc900034bedc8 EFLAGS: 00010246 [ 86.680970][ T5112] RAX: 7d287cad4185da00 RBX: ffff888040cdc0b8 RCX: ffff888023d1bc00 [ 86.688950][ T5112] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 86.696993][ T5112] RBP: ffffffff8cc5cbc0 R08: ffffffff815857b2 R09: fffffbfff1c39994 [ 86.705038][ T5112] R10: dffffc0000000000 R11: fffffbfff1c39994 R12: ffff888022880518 [ 86.713076][ T5112] R13: dffffc0000000000 R14: ffff888040cdc130 R15: ffff888040cdc130 [ 86.721116][ T5112] FS: 000055556e9e9380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 86.730106][ T5112] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.736723][ T5112] CR2: 0000000020001180 CR3: 000000007c876000 CR4: 00000000003506f0 [ 86.744769][ T5112] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.752803][ T5112] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.760855][ T5112] Call Trace: [ 86.764185][ T5112] [ 86.767150][ T5112] ? __warn+0x163/0x4e0 [ 86.771394][ T5112] ? skb_warn_bad_offload+0x166/0x1a0 [ 86.776987][ T5112] ? report_bug+0x2b3/0x500 [ 86.781586][ T5112] ? skb_warn_bad_offload+0x166/0x1a0 [ 86.787012][ T5112] ? handle_bug+0x3e/0x70 [ 86.791410][ T5112] ? exc_invalid_op+0x1a/0x50 [ 86.796169][ T5112] ? asm_exc_invalid_op+0x1a/0x20 [ 86.801274][ T5112] ? __warn_printk+0x292/0x360 [ 86.806093][ T5112] ? skb_warn_bad_offload+0x166/0x1a0 [ 86.811556][ T5112] ? skb_warn_bad_offload+0x165/0x1a0 [ 86.816997][ T5112] __skb_gso_segment+0x3be/0x4c0 [ 86.822570][ T5112] validate_xmit_skb+0x585/0x1120 [ 86.827691][ T5112] ? rcu_read_lock_bh_held+0x7e/0x120 [ 86.833141][ T5112] ? __pfx_validate_xmit_skb+0x10/0x10 [ 86.838656][ T5112] __dev_queue_xmit+0x17a4/0x3e90 [ 86.843766][ T5112] ? __dev_queue_xmit+0x2da/0x3e90 [ 86.848925][ T5112] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 86.855012][ T5112] ? __pfx___dev_queue_xmit+0x10/0x10 [ 86.860476][ T5112] ? neigh_connected_output+0x1d5/0x450 [ 86.866034][ T5112] ? read_seqbegin+0x157/0x2b0 [ 86.870964][ T5112] ? lockdep_hardirqs_on+0x99/0x150 [ 86.876211][ T5112] ? read_seqbegin+0x208/0x2b0 [ 86.881044][ T5112] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 86.886899][ T5112] ? neigh_connected_output+0x3a7/0x450 [ 86.892527][ T5112] ip6_finish_output2+0xffa/0x1680 [ 86.897680][ T5112] ? __pfx_lock_acquire+0x10/0x10 [ 86.902784][ T5112] ? ip6_finish_output2+0x712/0x1680 [ 86.908110][ T5112] ? nf_hook+0x9e/0x450 [ 86.912351][ T5112] ? __ip6_local_out+0x7c1/0x800 [ 86.917359][ T5112] ? __pfx_ip6_finish_output2+0x10/0x10 [ 86.922985][ T5112] ? skb_gso_transport_seglen+0x345/0x580 [ 86.928787][ T5112] ? skb_gso_validate_network_len+0x12e/0x290 [ 86.934956][ T5112] ip6_finish_output+0x41e/0x810 [ 86.939988][ T5112] ip6_send_skb+0x112/0x230 [ 86.944534][ T5112] udp_v6_send_skb+0xbf5/0x1870 [ 86.949494][ T5112] udpv6_sendmsg+0x23b3/0x3270 [ 86.954326][ T5112] ? __pfx_ip_generic_getfrag+0x10/0x10 [ 86.959946][ T5112] ? __pfx_udpv6_sendmsg+0x10/0x10 [ 86.965122][ T5112] ? inet_send_prepare+0x21/0x260 [ 86.970225][ T5112] ? inet_send_prepare+0x5a/0x260 [ 86.975314][ T5112] __sock_sendmsg+0xef/0x270 [ 86.979996][ T5112] ____sys_sendmsg+0x525/0x7d0 [ 86.984802][ T5112] ? __pfx_____sys_sendmsg+0x10/0x10 [ 86.990204][ T5112] __sys_sendmmsg+0x3b2/0x740 [ 86.994941][ T5112] ? __pfx___sys_sendmmsg+0x10/0x10 [ 87.000290][ T5112] ? do_raw_spin_lock+0x14f/0x370 [ 87.005383][ T5112] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 87.011458][ T5112] ? _raw_spin_unlock_irq+0x23/0x50 [ 87.016783][ T5112] ? lockdep_hardirqs_on+0x99/0x150 [ 87.022071][ T5112] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 87.028434][ T5112] ? exc_page_fault+0x590/0x8c0 [ 87.033361][ T5112] __x64_sys_sendmmsg+0xa0/0xb0 [ 87.038247][ T5112] do_syscall_64+0xf3/0x230 [ 87.042842][ T5112] ? clear_bhb_loop+0x35/0x90 [ 87.047585][ T5112] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.053763][ T5112] RIP: 0033:0x7f04f688fe89 [ 87.058314][ T5112] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 87.078089][ T5112] RSP: 002b:00007ffeebc526e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 87.086603][ T5112] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f04f688fe89 [ 87.094685][ T5112] RDX: 0000000000000001 RSI: 0000000020003cc0 RDI: 0000000000000003 [ 87.102746][ T5112] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000001 [ 87.110800][ T5112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffeebc52740 [ 87.118816][ T5112] R13: 00007f04f68dd406 R14: 0000000000000003 R15: 00007ffeebc52720 [ 87.126886][ T5112] [ 87.129983][ T5112] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 87.137283][ T5112] CPU: 0 PID: 5112 Comm: syz-executor391 Not tainted 6.10.0-rc7-syzkaller-01603-g80ab5445da62 #0 [ 87.147795][ T5112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 87.157865][ T5112] Call Trace: [ 87.161153][ T5112] [ 87.164092][ T5112] dump_stack_lvl+0x241/0x360 [ 87.168784][ T5112] ? __pfx_dump_stack_lvl+0x10/0x10 [ 87.174003][ T5112] ? __pfx__printk+0x10/0x10 [ 87.178608][ T5112] ? vscnprintf+0x5d/0x90 [ 87.182957][ T5112] panic+0x349/0x860 [ 87.186862][ T5112] ? __warn+0x172/0x4e0 [ 87.191026][ T5112] ? __pfx_panic+0x10/0x10 [ 87.195466][ T5112] __warn+0x346/0x4e0 [ 87.199471][ T5112] ? skb_warn_bad_offload+0x166/0x1a0 [ 87.204860][ T5112] report_bug+0x2b3/0x500 [ 87.209196][ T5112] ? skb_warn_bad_offload+0x166/0x1a0 [ 87.214604][ T5112] handle_bug+0x3e/0x70 [ 87.218788][ T5112] exc_invalid_op+0x1a/0x50 [ 87.223338][ T5112] asm_exc_invalid_op+0x1a/0x20 [ 87.228225][ T5112] RIP: 0010:skb_warn_bad_offload+0x166/0x1a0 [ 87.234275][ T5112] Code: e8 5f 94 a3 f8 49 8b 04 24 48 8d 88 a0 03 00 00 48 85 c0 48 0f 44 cd 48 c7 c7 00 cc c5 8c 4c 89 f6 48 89 da e8 fb 92 ff f7 90 <0f> 0b 90 90 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 44 89 f9 [ 87.254017][ T5112] RSP: 0018:ffffc900034bedc8 EFLAGS: 00010246 [ 87.260122][ T5112] RAX: 7d287cad4185da00 RBX: ffff888040cdc0b8 RCX: ffff888023d1bc00 [ 87.268104][ T5112] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 87.276091][ T5112] RBP: ffffffff8cc5cbc0 R08: ffffffff815857b2 R09: fffffbfff1c39994 [ 87.284099][ T5112] R10: dffffc0000000000 R11: fffffbfff1c39994 R12: ffff888022880518 [ 87.292168][ T5112] R13: dffffc0000000000 R14: ffff888040cdc130 R15: ffff888040cdc130 [ 87.300159][ T5112] ? __warn_printk+0x292/0x360 [ 87.304973][ T5112] ? skb_warn_bad_offload+0x165/0x1a0 [ 87.310371][ T5112] __skb_gso_segment+0x3be/0x4c0 [ 87.315333][ T5112] validate_xmit_skb+0x585/0x1120 [ 87.320391][ T5112] ? rcu_read_lock_bh_held+0x7e/0x120 [ 87.325780][ T5112] ? __pfx_validate_xmit_skb+0x10/0x10 [ 87.331289][ T5112] __dev_queue_xmit+0x17a4/0x3e90 [ 87.336346][ T5112] ? __dev_queue_xmit+0x2da/0x3e90 [ 87.341495][ T5112] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 87.347581][ T5112] ? __pfx___dev_queue_xmit+0x10/0x10 [ 87.353088][ T5112] ? neigh_connected_output+0x1d5/0x450 [ 87.358651][ T5112] ? read_seqbegin+0x157/0x2b0 [ 87.363451][ T5112] ? lockdep_hardirqs_on+0x99/0x150 [ 87.368688][ T5112] ? read_seqbegin+0x208/0x2b0 [ 87.373468][ T5112] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 87.379219][ T5112] ? neigh_connected_output+0x3a7/0x450 [ 87.384815][ T5112] ip6_finish_output2+0xffa/0x1680 [ 87.389950][ T5112] ? __pfx_lock_acquire+0x10/0x10 [ 87.395100][ T5112] ? ip6_finish_output2+0x712/0x1680 [ 87.400405][ T5112] ? nf_hook+0x9e/0x450 [ 87.404576][ T5112] ? __ip6_local_out+0x7c1/0x800 [ 87.409535][ T5112] ? __pfx_ip6_finish_output2+0x10/0x10 [ 87.415100][ T5112] ? skb_gso_transport_seglen+0x345/0x580 [ 87.420839][ T5112] ? skb_gso_validate_network_len+0x12e/0x290 [ 87.427043][ T5112] ip6_finish_output+0x41e/0x810 [ 87.432000][ T5112] ip6_send_skb+0x112/0x230 [ 87.436528][ T5112] udp_v6_send_skb+0xbf5/0x1870 [ 87.441409][ T5112] udpv6_sendmsg+0x23b3/0x3270 [ 87.446194][ T5112] ? __pfx_ip_generic_getfrag+0x10/0x10 [ 87.451763][ T5112] ? __pfx_udpv6_sendmsg+0x10/0x10 [ 87.456929][ T5112] ? inet_send_prepare+0x21/0x260 [ 87.461972][ T5112] ? inet_send_prepare+0x5a/0x260 [ 87.467022][ T5112] __sock_sendmsg+0xef/0x270 [ 87.471631][ T5112] ____sys_sendmsg+0x525/0x7d0 [ 87.476414][ T5112] ? __pfx_____sys_sendmsg+0x10/0x10 [ 87.481729][ T5112] __sys_sendmmsg+0x3b2/0x740 [ 87.486430][ T5112] ? __pfx___sys_sendmmsg+0x10/0x10 [ 87.491692][ T5112] ? do_raw_spin_lock+0x14f/0x370 [ 87.496781][ T5112] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 87.502788][ T5112] ? _raw_spin_unlock_irq+0x23/0x50 [ 87.508031][ T5112] ? lockdep_hardirqs_on+0x99/0x150 [ 87.513259][ T5112] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 87.519604][ T5112] ? exc_page_fault+0x590/0x8c0 [ 87.524471][ T5112] __x64_sys_sendmmsg+0xa0/0xb0 [ 87.529342][ T5112] do_syscall_64+0xf3/0x230 [ 87.533875][ T5112] ? clear_bhb_loop+0x35/0x90 [ 87.538629][ T5112] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.544548][ T5112] RIP: 0033:0x7f04f688fe89 [ 87.548977][ T5112] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 [ 87.568687][ T5112] RSP: 002b:00007ffeebc526e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 87.577303][ T5112] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f04f688fe89 [ 87.585468][ T5112] RDX: 0000000000000001 RSI: 0000000020003cc0 RDI: 0000000000000003 [ 87.593538][ T5112] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000001 [ 87.601522][ T5112] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffeebc52740 [ 87.609510][ T5112] R13: 00007f04f68dd406 R14: 0000000000000003 R15: 00007ffeebc52720 [ 87.617596][ T5112] [ 87.620917][ T5112] Kernel Offset: disabled [ 87.625283][ T5112] Rebooting in 86400 seconds..