./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1383271669 <...> Warning: Permanently added '10.128.0.190' (ECDSA) to the list of known hosts. execve("./syz-executor1383271669", ["./syz-executor1383271669"], 0x7ffde89009a0 /* 10 vars */) = 0 brk(NULL) = 0x5555557d2000 brk(0x5555557d2c40) = 0x5555557d2c40 arch_prctl(ARCH_SET_FS, 0x5555557d2300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1383271669", 4096) = 28 brk(0x5555557f3c40) = 0x5555557f3c40 brk(0x5555557f4000) = 0x5555557f4000 mprotect(0x7fb8f419e000, 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./strace-static-x86_64: Process 5079 attached , child_tidptr=0x5555557d25d0) = 5079 [pid 5079] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] setsid() = 1 [pid 5079] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5079] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5079] unshare(CLONE_NEWNS) = 0 [pid 5079] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5079] unshare(CLONE_NEWIPC) = 0 [pid 5079] unshare(CLONE_NEWCGROUP) = 0 [pid 5079] unshare(CLONE_NEWUTS) = 0 [pid 5079] unshare(CLONE_SYSVSEM) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "16777216", 8) = 8 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "536870912", 9) = 9 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "8192", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5079] close(3) = 0 [pid 5079] getpid() = 1 [pid 5079] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e8 3c 55 b7 f9 0f b6 1d ac e1 93 06 31 ff 89 de e8 9c 51 b7 [ 60.041669][ T5079] RSP: 0018:ffffc90003bcf700 EFLAGS: 00010282 [ 60.047958][ T5079] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 60.056831][ T5079] RDX: ffff888020598000 RSI: ffffffff8166825c RDI: fffff52000779ed2 [ 60.064830][ T5079] RBP: ffff8880768ebe7a R08: 0000000000000005 R09: 0000000000000000 [ 60.073063][ T5079] R10: 0000000080000000 R11: 0000000000000000 R12: ffff88807aa880c0 [ 60.081956][ T5079] R13: 0000000000000000 R14: ffff8880768ebdd0 R15: ffff8880768ebdc0 [ 60.090091][ T5079] FS: 00005555557d2300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 60.099912][ T5079] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.106664][ T5079] CR2: 0000562ea4d15068 CR3: 00000000768b6000 CR4: 00000000003506e0 [ 60.114639][ T5079] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.126289][ T5079] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.134297][ T5079] Call Trace: [ 60.137673][ T5079] [ 60.140634][ T5079] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.147107][ T5079] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 60.152458][ T5079] ? packet_parse_headers+0x43c/0x980 [ 60.157996][ T5079] ? packet_parse_headers+0x200/0x980 [ 60.163400][ T5079] ? lock_release+0x810/0x810 [ 60.168197][ T5079] ? csum_and_copy_from_iter+0x12e0/0x12e0 [ 60.174032][ T5079] ? packet_sock_destruct+0x150/0x150 [ 60.179567][ T5079] ? __alloc_skb+0x185/0x310 [ 60.184198][ T5079] ? full_name_hash+0xb5/0x110 [ 60.189033][ T5079] ? netdev_name_node_lookup_rcu+0x108/0x150 [ 60.195101][ T5079] packet_sendmsg_spkt+0xdc8/0x13f0 [ 60.200562][ T5079] ? packet_rcv+0x15c0/0x15c0 [ 60.205283][ T5079] ? __import_iovec+0x1fb/0x610 [ 60.210534][ T5079] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 60.216029][ T5079] ? packet_rcv+0x15c0/0x15c0 [ 60.220714][ T5079] sock_sendmsg+0xde/0x190 [ 60.225134][ T5079] ____sys_sendmsg+0x334/0x900 [ 60.230230][ T5079] ? copy_msghdr_from_user+0xfc/0x150 [ 60.235834][ T5079] ? kernel_sendmsg+0x50/0x50 [ 60.240555][ T5079] ? find_held_lock+0x2d/0x110 [ 60.245332][ T5079] ___sys_sendmsg+0x110/0x1b0 [ 60.251075][ T5079] ? do_recvmmsg+0x6e0/0x6e0 [ 60.255999][ T5079] ? __lock_acquire+0x166e/0x56d0 [ 60.261056][ T5079] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.267557][ T5079] ? __schedule+0xb92/0x5450 [ 60.272210][ T5079] ? mark_held_locks+0x9f/0xe0 [ 60.278012][ T5079] ? __fget_light+0x20a/0x270 [ 60.282729][ T5079] __sys_sendmmsg+0x18f/0x460 [ 60.287624][ T5079] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 60.292653][ T5079] ? _raw_spin_lock_irq+0x45/0x50 [ 60.297914][ T5079] ? find_held_lock+0x2d/0x110 [ 60.302688][ T5079] ? ptrace_notify+0xfe/0x140 [ 60.307600][ T5079] ? lock_downgrade+0x6e0/0x6e0 [ 60.312485][ T5079] ? _raw_spin_unlock_irq+0x23/0x50 [ 60.317943][ T5079] ? lockdep_hardirqs_on+0x7d/0x100 [ 60.323166][ T5079] __x64_sys_sendmmsg+0x9d/0x100 [ 60.328346][ T5079] do_syscall_64+0x39/0xb0 [ 60.332777][ T5079] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.338898][ T5079] RIP: 0033:0x7fb8f412a629 [ 60.343316][ T5079] Code: 28 c3 e8 4a 15 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 [ 60.363565][ T5079] RSP: 002b:00007ffe0ffdd7b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 60.372120][ T5079] RAX: ffffffffffffffda RBX: 00007ffe0ffdd7c8 RCX: 00007fb8f412a629 [ 60.380185][ T5079] RDX: 0000000000000001 RSI: 0000000020005740 RDI: 0000000000000004 [ 60.388357][ T5079] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 60.396401][ T5079] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe0ffdd7d0 [ 60.404386][ T5079] R13: 00007ffe0ffdd7f0 R14: 0000000000000000 R15: 0000000000000000 [ 60.412617][ T5079] [ 60.416537][ T5079] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 60.423823][ T5079] CPU: 1 PID: 5079 Comm: syz-executor138 Not tainted 6.2.0-rc4-syzkaller-00664-ga7b87d2a31dc #0 [ 60.434246][ T5079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 60.444315][ T5079] Call Trace: [ 60.447593][ T5079] [ 60.450526][ T5079] dump_stack_lvl+0xd1/0x138 [ 60.455139][ T5079] panic+0x2cc/0x626 [ 60.459045][ T5079] ? panic_print_sys_info.part.0+0x110/0x110 [ 60.465052][ T5079] ? __dev_queue_xmit+0x247d/0x3ba0 [ 60.470261][ T5079] check_panic_on_warn.cold+0x19/0x35 [ 60.475721][ T5079] __warn+0xf2/0x1a0 [ 60.479621][ T5079] ? __wake_up_klogd.part.0+0x99/0xf0 [ 60.485008][ T5079] ? __dev_queue_xmit+0x247d/0x3ba0 [ 60.490233][ T5079] report_bug+0x1c0/0x210 [ 60.494571][ T5079] handle_bug+0x3c/0x70 [ 60.498727][ T5079] exc_invalid_op+0x18/0x50 [ 60.503229][ T5079] asm_exc_invalid_op+0x1a/0x20 [ 60.508110][ T5079] RIP: 0010:__dev_queue_xmit+0x247d/0x3ba0 [ 60.513928][ T5079] Code: 89 de e8 d6 51 b7 f9 84 db 75 21 e8 5d 55 b7 f9 48 c7 c6 c0 9a 5b 8b 48 c7 c7 40 6d 5b 8b c6 05 c0 e1 93 06 01 e8 a3 c4 f5 01 <0f> 0b e8 3c 55 b7 f9 0f b6 1d ac e1 93 06 31 ff 89 de e8 9c 51 b7 [ 60.533542][ T5079] RSP: 0018:ffffc90003bcf700 EFLAGS: 00010282 [ 60.539639][ T5079] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 60.547610][ T5079] RDX: ffff888020598000 RSI: ffffffff8166825c RDI: fffff52000779ed2 [ 60.555582][ T5079] RBP: ffff8880768ebe7a R08: 0000000000000005 R09: 0000000000000000 [ 60.563546][ T5079] R10: 0000000080000000 R11: 0000000000000000 R12: ffff88807aa880c0 [ 60.571519][ T5079] R13: 0000000000000000 R14: ffff8880768ebdd0 R15: ffff8880768ebdc0 [ 60.579494][ T5079] ? vprintk+0x8c/0xa0 [ 60.583569][ T5079] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.589551][ T5079] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 60.594842][ T5079] ? packet_parse_headers+0x43c/0x980 [ 60.600225][ T5079] ? packet_parse_headers+0x200/0x980 [ 60.605629][ T5079] ? lock_release+0x810/0x810 [ 60.610306][ T5079] ? csum_and_copy_from_iter+0x12e0/0x12e0 [ 60.616114][ T5079] ? packet_sock_destruct+0x150/0x150 [ 60.621490][ T5079] ? __alloc_skb+0x185/0x310 [ 60.626111][ T5079] ? full_name_hash+0xb5/0x110 [ 60.630878][ T5079] ? netdev_name_node_lookup_rcu+0x108/0x150 [ 60.636858][ T5079] packet_sendmsg_spkt+0xdc8/0x13f0 [ 60.642087][ T5079] ? packet_rcv+0x15c0/0x15c0 [ 60.646762][ T5079] ? __import_iovec+0x1fb/0x610 [ 60.651610][ T5079] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 60.656902][ T5079] ? packet_rcv+0x15c0/0x15c0 [ 60.661580][ T5079] sock_sendmsg+0xde/0x190 [ 60.666003][ T5079] ____sys_sendmsg+0x334/0x900 [ 60.670768][ T5079] ? copy_msghdr_from_user+0xfc/0x150 [ 60.676148][ T5079] ? kernel_sendmsg+0x50/0x50 [ 60.680862][ T5079] ? find_held_lock+0x2d/0x110 [ 60.686329][ T5079] ___sys_sendmsg+0x110/0x1b0 [ 60.691003][ T5079] ? do_recvmmsg+0x6e0/0x6e0 [ 60.695594][ T5079] ? __lock_acquire+0x166e/0x56d0 [ 60.700619][ T5079] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.706594][ T5079] ? __schedule+0xb92/0x5450 [ 60.711178][ T5079] ? mark_held_locks+0x9f/0xe0 [ 60.715940][ T5079] ? __fget_light+0x20a/0x270 [ 60.720616][ T5079] __sys_sendmmsg+0x18f/0x460 [ 60.725289][ T5079] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 60.730750][ T5079] ? _raw_spin_lock_irq+0x45/0x50 [ 60.735796][ T5079] ? find_held_lock+0x2d/0x110 [ 60.740577][ T5079] ? ptrace_notify+0xfe/0x140 [ 60.745245][ T5079] ? lock_downgrade+0x6e0/0x6e0 [ 60.750113][ T5079] ? _raw_spin_unlock_irq+0x23/0x50 [ 60.755312][ T5079] ? lockdep_hardirqs_on+0x7d/0x100 [ 60.760512][ T5079] __x64_sys_sendmmsg+0x9d/0x100 [ 60.765539][ T5079] do_syscall_64+0x39/0xb0 [ 60.769960][ T5079] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.775854][ T5079] RIP: 0033:0x7fb8f412a629 [ 60.780264][ T5079] Code: 28 c3 e8 4a 15 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 [ 60.799900][ T5079] RSP: 002b:00007ffe0ffdd7b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 60.808402][ T5079] RAX: ffffffffffffffda RBX: 00007ffe0ffdd7c8 RCX: 00007fb8f412a629 [ 60.816368][ T5079] RDX: 0000000000000001 RSI: 0000000020005740 RDI: 0000000000000004 [ 60.824364][ T5079] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 60.832359][ T5079] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe0ffdd7d0 [ 60.840331][ T5079] R13: 00007ffe0ffdd7f0 R14: 0000000000000000 R15: 0000000000000000 [ 60.848321][ T5079] [ 60.851561][ T5079] Kernel Offset: disabled [ 60.855967][ T5079] Rebooting in 86400 seconds..