./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1343935306 <...> forked to background, child pid 3046 no interfaces have a carrier [ 68.778038][ T3047] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.814042][ T3047] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 95.133507][ T25] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.110' (ECDSA) to the list of known hosts. execve("./syz-executor1343935306", ["./syz-executor1343935306"], 0x7ffccd3a89d0 /* 10 vars */) = 0 brk(NULL) = 0x5555570d2000 brk(0x5555570d2c40) = 0x5555570d2c40 arch_prctl(ARCH_SET_FS, 0x5555570d2300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1343935306", 4096) = 28 brk(0x5555570f3c40) = 0x5555570f3c40 brk(0x5555570f4000) = 0x5555570f4000 mprotect(0x7f279bef9000, 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=0x5555570d25d0) = 3474 ./strace-static-x86_64: Process 3474 attached [pid 3474] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3474] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3474] setsid() = 1 [pid 3474] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3474] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3474] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3474] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3474] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3474] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3474] unshare(CLONE_NEWNS) = 0 [pid 3474] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3474] unshare(CLONE_NEWIPC) = 0 [pid 3474] unshare(CLONE_NEWCGROUP) = 0 [pid 3474] unshare(CLONE_NEWUTS) = 0 [pid 3474] unshare(CLONE_SYSVSEM) = 0 [pid 3474] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3474] write(3, "16777216", 8) = 8 [pid 3474] close(3) = 0 [pid 3474] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3474] write(3, "536870912", 9) = 9 [pid 3474] close(3) = 0 [pid 3474] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3474] write(3, "1024", 4) = 4 [pid 3474] close(3) = 0 [pid 3474] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3474] write(3, "8192", 4) = 4 [pid 3474] close(3) = 0 [pid 3474] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3474] write(3, "1024", 4) = 4 [pid 3474] close(3) = 0 [pid 3474] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3474] write(3, "1024", 4) = 4 [pid 3474] close(3) = 0 [pid 3474] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3474] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3474] close(3) = 0 [pid 3474] getpid() = 1 [pid 3474] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 103.241207][ T3506] dump_stack_lvl+0x1ff/0x28e [ 103.245918][ T3506] dump_stack+0x25/0x28 [ 103.250118][ T3506] panic+0x4fe/0xc73 [ 103.254075][ T3506] ? asm_common_interrupt+0x1e/0x40 [ 103.259324][ T3506] ? add_taint+0x181/0x210 [ 103.263765][ T3506] ? console_unlock+0x1c00/0x2130 [ 103.268825][ T3506] ? _raw_spin_unlock_irqrestore+0x78/0xb0 [ 103.274668][ T3506] kmsan_report+0x2e6/0x2f0 [ 103.279201][ T3506] ? __msan_warning+0x94/0x110 [ 103.283996][ T3506] ? hsr_fill_frame_info+0x495/0x770 [ 103.289327][ T3506] ? hsr_forward_skb+0x7c4/0x3630 [ 103.294392][ T3506] ? hsr_dev_xmit+0x23a/0x530 [ 103.299092][ T3506] ? xmit_one+0x2f4/0x840 [ 103.303469][ T3506] ? dev_hard_start_xmit+0x186/0x440 [ 103.308807][ T3506] ? __dev_queue_xmit+0x22ee/0x3500 [ 103.314057][ T3506] ? dev_queue_xmit+0x4b/0x60 [ 103.318782][ T3506] ? packet_sendmsg+0x6671/0x7d60 [ 103.323830][ T3506] ? __sys_sendto+0x9ef/0xc70 [ 103.328587][ T3506] ? __x64_sys_sendto+0x19c/0x210 [ 103.333637][ T3506] ? do_syscall_64+0x51/0xa0 [ 103.338273][ T3506] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 103.344375][ T3506] ? __netdev_printk+0x92d/0xae0 [ 103.349340][ T3506] ? kmsan_get_metadata+0x33/0x220 [ 103.354487][ T3506] ? kmsan_internal_set_shadow_origin+0x62/0xe0 [ 103.360798][ T3506] ? netdev_printk+0x222/0x267 [ 103.365612][ T3506] ? kmsan_get_metadata+0x33/0x220 [ 103.370765][ T3506] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 103.376626][ T3506] __msan_warning+0x94/0x110 [ 103.381281][ T3506] hsr_fill_frame_info+0x495/0x770 [ 103.386458][ T3506] ? hsr_drop_frame+0x250/0x250 [ 103.391352][ T3506] hsr_forward_skb+0x7c4/0x3630 [ 103.396259][ T3506] hsr_dev_xmit+0x23a/0x530 [ 103.400814][ T3506] ? is_hsr_master+0xb0/0xb0 [ 103.405441][ T3506] xmit_one+0x2f4/0x840 [ 103.409685][ T3506] dev_hard_start_xmit+0x186/0x440 [ 103.414867][ T3506] __dev_queue_xmit+0x22ee/0x3500 [ 103.419952][ T3506] ? packet_parse_headers+0x5bd/0x660 [ 103.425384][ T3506] ? kmsan_get_metadata+0x33/0x220 [ 103.430543][ T3506] dev_queue_xmit+0x4b/0x60 [ 103.435104][ T3506] ? netdev_core_pick_tx+0x5a0/0x5a0 [ 103.440511][ T3506] packet_sendmsg+0x6671/0x7d60 [ 103.445392][ T3506] ? __stack_depot_save+0x21/0x4b0 [ 103.450571][ T3506] ? kmsan_get_metadata+0x33/0x220 [ 103.455705][ T3506] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 103.461606][ T3506] ? packet_getsockopt+0x1050/0x1050 [ 103.466941][ T3506] __sys_sendto+0x9ef/0xc70 [ 103.471519][ T3506] ? kmsan_get_metadata+0x33/0x220 [ 103.476679][ T3506] ? kmsan_get_shadow_origin_ptr+0x9b/0xf0 [ 103.482532][ T3506] __x64_sys_sendto+0x19c/0x210 [ 103.487445][ T3506] do_syscall_64+0x51/0xa0 [ 103.491887][ T3506] ? exc_page_fault+0x76/0x150 [ 103.496702][ T3506] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 103.502646][ T3506] RIP: 0033:0x7f279be85a49 [ 103.507081][ T3506] 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 [ 103.526882][ T3506] RSP: 002b:00007ffcff464f98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 103.535323][ T3506] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f279be85a49 [ 103.543338][ T3506] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 103.551422][ T3506] RBP: 0000000000000000 R08: 00000000200001c0 R09: 0000000000000014 [ 103.559409][ T3506] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcff464fc0 [ 103.567402][ T3506] R13: 00000000000f4240 R14: 0000000000000000 R15: 0000000000000000 [ 103.575397][ T3506] [ 103.578604][ T3506] Kernel Offset: disabled [ 103.582930][ T3506] Rebooting in 86400 seconds..