./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor368981969 <...> Warning: Permanently added '10.128.0.144' (ED25519) to the list of known hosts. execve("./syz-executor368981969", ["./syz-executor368981969"], 0x7ffd7569b2d0 /* 10 vars */) = 0 brk(NULL) = 0x5555571f7000 brk(0x5555571f7d00) = 0x5555571f7d00 arch_prctl(ARCH_SET_FS, 0x5555571f7380) = 0 set_tid_address(0x5555571f7650) = 4995 set_robust_list(0x5555571f7660, 24) = 0 rseq(0x5555571f7ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor368981969", 4096) = 27 getrandom("\x8f\x11\x69\x42\x50\xd1\x28\xb6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555571f7d00 brk(0x555557218d00) = 0x555557218d00 brk(0x555557219000) = 0x555557219000 mprotect(0x7f59c08ad000, 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=0x5555571f7650) = 4996 ./strace-static-x86_64: Process 4996 attached [pid 4996] set_robust_list(0x5555571f7660, 24) = 0 [pid 4996] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 4996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4996] setsid() = 1 [pid 4996] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 4996] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 4996] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 4996] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 4996] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 4996] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 4996] unshare(CLONE_NEWNS) = 0 [pid 4996] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 4996] unshare(CLONE_NEWIPC) = 0 [pid 4996] unshare(CLONE_NEWCGROUP) = 0 [pid 4996] unshare(CLONE_NEWUTS) = 0 [pid 4996] unshare(CLONE_SYSVSEM) = 0 [pid 4996] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4996] write(3, "16777216", 8) = 8 [pid 4996] close(3) = 0 [pid 4996] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 4996] write(3, "536870912", 9) = 9 [pid 4996] close(3) = 0 [pid 4996] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4996] write(3, "1024", 4) = 4 [pid 4996] close(3) = 0 [pid 4996] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4996] write(3, "8192", 4) = 4 [pid 4996] close(3) = 0 [pid 4996] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4996] write(3, "1024", 4) = 4 [pid 4996] close(3) = 0 [pid 4996] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 4996] write(3, "1024", 4) = 4 [pid 4996] close(3) = 0 [pid 4996] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 4996] write(3, "1024 1048576 500 1024", 21) = 21 [pid 4996] close(3) = 0 [pid 4996] getpid() = 1 [pid 4996] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 149.198656][ T5022] dump_stack_lvl+0x1bf/0x240 [ 149.203526][ T5022] dump_stack+0x1e/0x20 [ 149.207945][ T5022] panic+0x4d5/0xc70 [ 149.212038][ T5022] ? add_taint+0x108/0x1a0 [ 149.216645][ T5022] kmsan_report+0x2d0/0x2d0 [ 149.221347][ T5022] ? handle_mm_fault+0x2403/0xc560 [ 149.227139][ T5022] ? __msan_warning+0x96/0x110 [ 149.232067][ T5022] ? netif_skb_features+0xb44/0x1310 [ 149.237482][ T5022] ? validate_xmit_skb+0x43/0x1b50 [ 149.242956][ T5022] ? __dev_queue_xmit+0x1f09/0x52b0 [ 149.248344][ T5022] ? packet_xmit+0x9c/0x6b0 [ 149.253066][ T5022] ? packet_sendmsg+0x8b1d/0x9f30 [ 149.258224][ T5022] ? ____sys_sendmsg+0x9c2/0xd60 [ 149.263403][ T5022] ? ___sys_sendmsg+0x28d/0x3c0 [ 149.268452][ T5022] ? __x64_sys_sendmsg+0x307/0x490 [ 149.273764][ T5022] ? do_syscall_64+0x41/0xc0 [ 149.278466][ T5022] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 149.284791][ T5022] ? kmsan_internal_memmove_metadata+0x9a/0x360 [ 149.291209][ T5022] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 149.297241][ T5022] ? skb_copy_bits+0xc45/0xd30 [ 149.302185][ T5022] ? do_netdev_rx_csum_fault+0x60/0x60 [ 149.307751][ T5022] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 149.313702][ T5022] ? do_netdev_rx_csum_fault+0x60/0x60 [ 149.319419][ T5022] __msan_warning+0x96/0x110 [ 149.324142][ T5022] netif_skb_features+0xb44/0x1310 [ 149.329596][ T5022] validate_xmit_skb+0x43/0x1b50 [ 149.334922][ T5022] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 149.341524][ T5022] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 149.347486][ T5022] __dev_queue_xmit+0x1f09/0x52b0 [ 149.352867][ T5022] ? __dev_queue_xmit+0x34b/0x52b0 [ 149.358096][ T5022] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 149.364281][ T5022] packet_xmit+0x9c/0x6b0 [ 149.368891][ T5022] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 149.376866][ T5022] packet_sendmsg+0x8b1d/0x9f30 [ 149.381891][ T5022] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 149.387940][ T5022] ? aa_label_sk_perm+0x64c/0x790 [ 149.393143][ T5022] ? filter_irq_stacks+0x60/0x1a0 [ 149.398319][ T5022] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 149.404814][ T5022] ? aa_sk_perm+0x7d0/0xd70 [ 149.409469][ T5022] ? packet_getsockopt+0xfb0/0xfb0 [ 149.414832][ T5022] ____sys_sendmsg+0x9c2/0xd60 [ 149.419846][ T5022] ___sys_sendmsg+0x28d/0x3c0 [ 149.424748][ T5022] ? filter_irq_stacks+0x60/0x1a0 [ 149.429960][ T5022] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 149.435965][ T5022] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 149.442045][ T5022] __x64_sys_sendmsg+0x307/0x490 [ 149.447270][ T5022] do_syscall_64+0x41/0xc0 [ 149.451833][ T5022] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 149.457987][ T5022] RIP: 0033:0x7f59c0834be9 [ 149.462537][ T5022] 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 [ 149.482536][ T5022] RSP: 002b:00007fff29e64b78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 149.491137][ T5022] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f59c0834be9 [ 149.499240][ T5022] RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000003 [ 149.507321][ T5022] RBP: 00000000000f4240 R08: 0000000100000000 R09: 0000000100000000 [ 149.515431][ T5022] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff29e64bd0 [ 149.524637][ T5022] R13: 0000000000000001 R14: 00007fff29e64bd0 R15: 0000000000000003 [ 149.532747][ T5022] [ 149.536114][ T5022] Kernel Offset: disabled [ 149.540561][ T5022] Rebooting in 86400 seconds..