./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor27944013 <...> Warning: Permanently added '10.128.1.126' (ED25519) to the list of known hosts. execve("./syz-executor27944013", ["./syz-executor27944013"], 0x7ffe458fbd30 /* 10 vars */) = 0 brk(NULL) = 0x555555b37000 brk(0x555555b37d00) = 0x555555b37d00 arch_prctl(ARCH_SET_FS, 0x555555b37380) = 0 set_tid_address(0x555555b37650) = 4998 set_robust_list(0x555555b37660, 24) = 0 rseq(0x555555b37ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor27944013", 4096) = 26 getrandom("\x5d\x33\x97\xd2\x1c\xe0\x43\x67", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555b37d00 brk(0x555555b58d00) = 0x555555b58d00 brk(0x555555b59000) = 0x555555b59000 mprotect(0x7f9dbebc8000, 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 5000 attached , child_tidptr=0x555555b37650) = 5000 [pid 5000] set_robust_list(0x555555b37660, 24) = 0 [pid 5000] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5000] setsid() = 1 [pid 5000] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5000] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5000] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5000] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5000] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5000] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5000] unshare(CLONE_NEWNS) = 0 [pid 5000] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5000] unshare(CLONE_NEWIPC) = 0 [pid 5000] unshare(CLONE_NEWCGROUP) = 0 [pid 5000] unshare(CLONE_NEWUTS) = 0 [pid 5000] unshare(CLONE_SYSVSEM) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "16777216", 8) = 8 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "536870912", 9) = 9 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "1024", 4) = 4 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "8192", 4) = 4 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "1024", 4) = 4 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "1024", 4) = 4 [pid 5000] close(3) = 0 [pid 5000] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5000] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5000] close(3) = 0 [pid 5000] getpid() = 1 [pid 5000] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 145.059008][ T5025] dump_stack_lvl+0x1bf/0x240 [ 145.063815][ T5025] dump_stack+0x1e/0x20 [ 145.068128][ T5025] panic+0x4de/0xc90 [ 145.072191][ T5025] ? add_taint+0x108/0x1a0 [ 145.076762][ T5025] kmsan_report+0x2d0/0x2d0 [ 145.081454][ T5025] ? __msan_warning+0x96/0x110 [ 145.086369][ T5025] ? validate_xmit_skb+0x10f2/0x1930 [ 145.091752][ T5025] ? __dev_queue_xmit+0x1eac/0x5130 [ 145.097078][ T5025] ? packet_xmit+0x9c/0x6b0 [ 145.101668][ T5025] ? packet_sendmsg+0x8b1d/0x9f30 [ 145.106827][ T5025] ? ____sys_sendmsg+0x9c2/0xd60 [ 145.111918][ T5025] ? ___sys_sendmsg+0x28d/0x3c0 [ 145.116867][ T5025] ? __x64_sys_sendmsg+0x307/0x490 [ 145.122122][ T5025] ? do_syscall_64+0x44/0x110 [ 145.126940][ T5025] ? entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 145.133129][ T5025] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 145.139124][ T5025] ? __skb_flow_dissect+0x76/0x9e50 [ 145.144497][ T5025] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 145.150447][ T5025] ? skb_network_protocol+0x8ef/0x9a0 [ 145.155956][ T5025] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 145.161875][ T5025] ? netif_skb_features+0x10e6/0x1350 [ 145.167353][ T5025] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 145.173329][ T5025] __msan_warning+0x96/0x110 [ 145.178060][ T5025] validate_xmit_skb+0x10f2/0x1930 [ 145.183343][ T5025] __dev_queue_xmit+0x1eac/0x5130 [ 145.188493][ T5025] ? __dev_queue_xmit+0x34b/0x5130 [ 145.193703][ T5025] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 145.199746][ T5025] packet_xmit+0x9c/0x6b0 [ 145.204240][ T5025] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 145.210217][ T5025] packet_sendmsg+0x8b1d/0x9f30 [ 145.215196][ T5025] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 145.221177][ T5025] ? aa_label_sk_perm+0x644/0x780 [ 145.226339][ T5025] ? filter_irq_stacks+0x60/0x1a0 [ 145.231535][ T5025] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 145.237947][ T5025] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 145.243894][ T5025] ? packet_getsockopt+0xfb0/0xfb0 [ 145.249117][ T5025] ____sys_sendmsg+0x9c2/0xd60 [ 145.254084][ T5025] ___sys_sendmsg+0x28d/0x3c0 [ 145.258924][ T5025] ? filter_irq_stacks+0x60/0x1a0 [ 145.264072][ T5025] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 145.270043][ T5025] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 145.275992][ T5025] __x64_sys_sendmsg+0x307/0x490 [ 145.281155][ T5025] do_syscall_64+0x44/0x110 [ 145.285828][ T5025] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 145.291909][ T5025] RIP: 0033:0x7f9dbeb4fba9 [ 145.296445][ T5025] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 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 [ 145.316218][ T5025] RSP: 002b:00007ffd362a6498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 145.324782][ T5025] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9dbeb4fba9 [ 145.332881][ T5025] RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000003 [ 145.340959][ T5025] RBP: 00000000000f4240 R08: 0000000100000000 R09: 0000000100000000 [ 145.349016][ T5025] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd362a64f0 [ 145.357070][ T5025] R13: 0000000000000001 R14: 00007ffd362a64f0 R15: 0000000000000003 [ 145.365177][ T5025] [ 145.368492][ T5025] Kernel Offset: disabled [ 145.372864][ T5025] Rebooting in 86400 seconds..