./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2797505368 <...> syzkaller login: [ 100.263587][ T25] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.99' (ECDSA) to the list of known hosts. execve("./syz-executor2797505368", ["./syz-executor2797505368"], 0x7ffe756dbb20 /* 10 vars */) = 0 brk(NULL) = 0x55555724f000 brk(0x55555724fc40) = 0x55555724fc40 arch_prctl(ARCH_SET_FS, 0x55555724f300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2797505368", 4096) = 28 brk(0x555557270c40) = 0x555557270c40 brk(0x555557271000) = 0x555557271000 mprotect(0x7f34a63d5000, 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=0x55555724f5d0) = 3487 ./strace-static-x86_64: Process 3487 attached [pid 3487] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3487] setsid() = 1 [pid 3487] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3487] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3487] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3487] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3487] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3487] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3487] unshare(CLONE_NEWNS) = 0 [pid 3487] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3487] unshare(CLONE_NEWIPC) = 0 [pid 3487] unshare(CLONE_NEWCGROUP) = 0 [pid 3487] unshare(CLONE_NEWUTS) = 0 [pid 3487] unshare(CLONE_SYSVSEM) = 0 [pid 3487] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3487] write(3, "16777216", 8) = 8 [pid 3487] close(3) = 0 [pid 3487] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3487] write(3, "536870912", 9) = 9 [pid 3487] close(3) = 0 [pid 3487] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3487] write(3, "1024", 4) = 4 [pid 3487] close(3) = 0 [pid 3487] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3487] write(3, "8192", 4) = 4 [pid 3487] close(3) = 0 [pid 3487] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3487] write(3, "1024", 4) = 4 [pid 3487] close(3) = 0 [pid 3487] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3487] write(3, "1024", 4) = 4 [pid 3487] close(3) = 0 [pid 3487] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3487] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3487] close(3) = 0 [pid 3487] getpid() = 1 [pid 3487] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 113.611219][ T3518] dump_stack_lvl+0x1c8/0x256 [ 113.616024][ T3518] dump_stack+0x1a/0x1c [ 113.620326][ T3518] panic+0x4d3/0xc69 [ 113.624328][ T3518] kmsan_report+0x2cc/0x2d0 [ 113.628954][ T3518] ? __kmalloc_node_track_caller+0xd1/0x1250 [ 113.635059][ T3518] ? __alloc_skb+0x346/0xcf0 [ 113.639755][ T3518] ? __msan_warning+0x92/0x110 [ 113.644645][ T3518] ? ipvlan_queue_xmit+0x1948/0x2560 [ 113.650025][ T3518] ? ipvlan_start_xmit+0x57/0x260 [ 113.655168][ T3518] ? __dev_direct_xmit+0x941/0xd50 [ 113.660412][ T3518] ? packet_direct_xmit+0x2a3/0x610 [ 113.665766][ T3518] ? packet_sendmsg+0x605b/0x78e0 [ 113.670909][ T3518] ? __sys_sendto+0x7f2/0xa60 [ 113.675691][ T3518] ? __x64_sys_sendto+0x121/0x1c0 [ 113.680865][ T3518] ? do_syscall_64+0x3d/0xb0 [ 113.685578][ T3518] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 113.691810][ T3518] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 113.697774][ T3518] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 113.703699][ T3518] ? preempt_count_sub+0x7d/0x280 [ 113.708880][ T3518] ? _raw_spin_unlock_irqrestore+0x34/0x50 [ 113.714856][ T3518] ? __stack_depot_save+0x38d/0x4b0 [ 113.720211][ T3518] ? kmsan_internal_set_shadow_origin+0x62/0xe0 [ 113.726595][ T3518] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 113.732494][ T3518] __msan_warning+0x92/0x110 [ 113.737188][ T3518] ipvlan_queue_xmit+0x1948/0x2560 [ 113.742513][ T3518] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 113.748504][ T3518] ipvlan_start_xmit+0x57/0x260 [ 113.753524][ T3518] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 113.759498][ T3518] ? ipvlan_stop+0x180/0x180 [ 113.764225][ T3518] __dev_direct_xmit+0x941/0xd50 [ 113.769259][ T3518] packet_direct_xmit+0x2a3/0x610 [ 113.774407][ T3518] ? fanout_set_data+0x830/0x830 [ 113.779504][ T3518] packet_sendmsg+0x605b/0x78e0 [ 113.784523][ T3518] ? kmsan_internal_set_shadow_origin+0x62/0xe0 [ 113.790886][ T3518] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 113.796892][ T3518] ? packet_getsockopt+0xfd0/0xfd0 [ 113.802164][ T3518] __sys_sendto+0x7f2/0xa60 [ 113.806868][ T3518] ? preempt_count_sub+0x7d/0x280 [ 113.812051][ T3518] ? kmsan_get_shadow_origin_ptr+0x49/0xa0 [ 113.817999][ T3518] __x64_sys_sendto+0x121/0x1c0 [ 113.822975][ T3518] do_syscall_64+0x3d/0xb0 [ 113.827502][ T3518] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 113.833500][ T3518] RIP: 0033:0x7f34a6361d39 [ 113.837986][ T3518] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 113.857745][ T3518] RSP: 002b:00007ffed1d8a7f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 113.866301][ T3518] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f34a6361d39 [ 113.874377][ T3518] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 113.882425][ T3518] RBP: 0000000000000000 R08: 00000000200000c0 R09: 0000000000000014 [ 113.890519][ T3518] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffed1d8a820 [ 113.898573][ T3518] R13: 00000000000f4240 R14: 0000000000000000 R15: 0000000000000000 [ 113.906668][ T3518] [ 113.909955][ T3518] Kernel Offset: disabled [ 113.914336][ T3518] Rebooting in 86400 seconds..