./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3967867970

<...>
Warning: Permanently added '10.128.0.150' (ED25519) to the list of known hosts.
execve("./syz-executor3967867970", ["./syz-executor3967867970"], 0x7ffe016ede00 /* 10 vars */) = 0
brk(NULL)                               = 0x55559198e000
brk(0x55559198ed40)                     = 0x55559198ed40
arch_prctl(ARCH_SET_FS, 0x55559198e3c0) = 0
set_tid_address(0x55559198e690)         = 288
set_robust_list(0x55559198e6a0, 24)     = 0
rseq(0x55559198ece0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented)
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3967867970", 4096) = 28
getrandom("\x5a\xf4\x51\x1c\x61\x13\xa3\x71", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55559198ed40
brk(0x5555919afd40)                     = 0x5555919afd40
brk(0x5555919b0000)                     = 0x5555919b0000
mprotect(0x7f1517b55000, 16384, PROT_READ) = 0
mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000
mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000
mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0executing program
) = 0x400001000000
write(1, "executing program\n", 18)     = 18
futex(0x7f1517b5b3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f1517af4320, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f1517ae59a0}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1517a70000
mprotect(0x7f1517a71000, 131072, PROT_READ|PROT_WRITE) = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8)   = 0
clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f1517a90990, parent_tid=0x7f1517a90990, exit_signal=0, stack=0x7f1517a70000, stack_size=0x20300, tls=0x7f1517a906c0} => {parent_tid=[289]}, 88) = 289
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0x7f1517b5b3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
futex(0x7f1517b5b3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 289 attached
 <unfinished ...>
[pid   289] set_robust_list(0x7f1517a909a0, 24) = 0
[pid   289] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   289] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   289] futex(0x7f1517b5b3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   288] <... futex resumed>)        = 0
[pid   288] futex(0x7f1517b5b3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   288] futex(0x7f1517b5b3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   289] <... futex resumed>)        = 1
[pid   289] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3
[pid   289] futex(0x7f1517b5b3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   288] <... futex resumed>)        = 0
[pid   288] futex(0x7f1517b5b3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   288] futex(0x7f1517b5b3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   289] <... futex resumed>)        = 1
[pid   289] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0
[pid   289] futex(0x7f1517b5b3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   288] <... futex resumed>)        = 0
[pid   288] futex(0x7f1517b5b3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   288] futex(0x7f1517b5b3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   289] <... futex resumed>)        = 1
[pid   289] read(3, "\x38\x00\x00\x00\x1a\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x20\x00\x00\x00\x00\x00\x02\x00\xfb\xff\xff\x83", 8224) = 56
[pid   289] futex(0x7f1517b5b3ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   288] <... futex resumed>)        = 0
[pid   288] futex(0x7f1517b5b3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   288] futex(0x7f1517b5b3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   289] <... futex resumed>)        = 1
[   22.240705][   T24] audit: type=1400 audit(1741974992.030:66): avc:  denied  { execmem } for  pid=288 comm="syz-executor396" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   22.260566][   T24] audit: type=1400 audit(1741974992.050:67): avc:  denied  { read write } for  pid=288 comm="syz-executor396" name="fuse" dev="devtmpfs" ino=90 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1
[pid   289] read(3,  <unfinished ...>
[pid   288] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   288] futex(0x7f1517b5b3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   288] futex(0x7f1517b5b3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   288] futex(0x7f1517b5b3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   288] futex(0x7f1517b5b3fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f1517a4f000
[pid   288] mprotect(0x7f1517a50000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   288] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   288] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f1517a6f990, parent_tid=0x7f1517a6f990, exit_signal=0, stack=0x7f1517a4f000, stack_size=0x20300, tls=0x7f1517a6f6c0} => {parent_tid=[291]}, 88) = 291
[pid   288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   288] futex(0x7f1517b5b3f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   288] futex(0x7f1517b5b3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 291 attached
 <unfinished ...>
[pid   291] set_robust_list(0x7f1517a6f9a0, 24) = 0
[pid   291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   291] write(3, "\x18\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x00\x00\x00\x00", 24) = 24
[pid   291] futex(0x7f1517b5b3fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   288] <... futex resumed>)        = 0
[pid   288] futex(0x7f1517b5b3f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   288] futex(0x7f1517b5b3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   291] <... futex resumed>)        = 1
[pid   291] unlink("./file0/file0" <unfinished ...>
[pid   289] <... read resumed>"\x2e\x00\x00\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x23\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46
[pid   289] write(3, "\x90\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 144) = 144
[pid   289] futex(0x7f1517b5b3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   22.284131][   T24] audit: type=1400 audit(1741974992.050:68): avc:  denied  { open } for  pid=288 comm="syz-executor396" path="/dev/fuse" dev="devtmpfs" ino=90 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1
[   22.307546][   T24] audit: type=1400 audit(1741974992.050:69): avc:  denied  { mounton } for  pid=288 comm="syz-executor396" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   22.317742][  T291] general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] PREEMPT SMP KASAN
[   22.330474][   T24] audit: type=1400 audit(1741974992.050:70): avc:  denied  { mount } for  pid=288 comm="syz-executor396" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1
[   22.341547][  T291] KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
[   22.341560][  T291] CPU: 0 PID: 291 Comm: syz-executor396 Not tainted 5.10.234-syzkaller-00031-gfc9aa81462ee #0
[   22.341565][  T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[   22.341592][  T291] RIP: 0010:do_unlinkat+0x3b2/0x8b0
[   22.341611][  T291] Code: de e8 f2 82 b6 ff 31 c0 81 fb 00 00 20 00 0f 94 c0 41 bf ec ff ff ff 41 29 c7 e9 99 00 00 00 49 8d 7d 30 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 52 1e f4 ff 49 8b 45 30 48 89 44 24 28 4c
[   22.416447][  T291] RSP: 0018:ffffc90000b97da0 EFLAGS: 00010202
[   22.422339][  T291] RAX: 0000000000000007 RBX: 0000000000000000 RCX: ffff88810ca88000
[   22.430149][  T291] RDX: ffff88810ca88000 RSI: 0000000000000000 RDI: 0000000000000038
[   22.437979][  T291] RBP: ffffc90000b97f18 R08: ffffffff81b43fc3 R09: ffffed10237f0a50
[   22.445867][  T291] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[   22.453677][  T291] R13: 0000000000000008 R14: 1ffff110237f0a4a R15: dffffc0000000000
[   22.461489][  T291] FS:  00007f1517a6f6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   22.470254][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.476674][  T291] CR2: 00007f1517a6fd58 CR3: 000000011ac1b000 CR4: 00000000003506b0
[   22.484491][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   22.492304][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   22.500109][  T291] Call Trace:
[   22.503243][  T291]  ? __die_body+0x62/0xb0
[   22.507404][  T291]  ? die_addr+0x9f/0xd0
[   22.511413][  T291]  ? exc_general_protection+0x3ff/0x490
[   22.516780][  T291]  ? asm_exc_general_protection+0x1e/0x30
[   22.522338][  T291]  ? do_unlinkat+0x333/0x8b0
[   22.526760][  T291]  ? do_unlinkat+0x3b2/0x8b0
[   22.531190][  T291]  ? fsnotify_link_count+0x90/0x90
[   22.536224][  T291]  ? strncpy_from_user+0x18e/0x2d0
[   22.541172][  T291]  ? getname_flags+0x1fd/0x520
[   22.545774][  T291]  __x64_sys_unlink+0x49/0x50
[   22.550282][  T291]  do_syscall_64+0x34/0x70
[   22.554536][  T291]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   22.560267][  T291] RIP: 0033:0x7f1517ace479
[   22.564533][  T291] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b0 ff ff ff f7 d8 64 89 01 48
[   22.583972][  T291] RSP: 002b:00007f1517a6f218 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
[pid   289] futex(0x7f1517b5b3e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   288] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[   22.592213][  T291] RAX: ffffffffffffffda RBX: 00007f1517b5b3f8 RCX: 00007f1517ace479
[   22.600015][  T291] RDX: 00007f1517ace479 RSI: 00000000000f4240 RDI: 0000400000000100
[   22.607828][  T291] RBP: 00007f1517b5b3f0 R08: 0000000000000000 R09: 0000000000000000
[   22.615652][  T291] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1517b28034
[   22.623585][  T291] R13: 0000400000004300 R14: 0000400000000100 R15: 00007fff2f1e1af8
[   22.631375][  T291] Modules linked in:
[   22.635900][  T291] ---[ end trace c18431b956c3eade ]---
[   22.641216][  T291] RIP: 0010:do_unlinkat+0x3b2/0x8b0
[   22.646221][  T291] Code: de e8 f2 82 b6 ff 31 c0 81 fb 00 00 20 00 0f 94 c0 41 bf ec ff ff ff 41 29 c7 e9 99 00 00 00 49 8d 7d 30 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 52 1e f4 ff 49 8b 45 30 48 89 44 24 28 4c
[   22.665706][  T291] RSP: 0018:ffffc90000b97da0 EFLAGS: 00010202
[   22.671562][  T291] RAX: 0000000000000007 RBX: 0000000000000000 RCX: ffff88810ca88000
[   22.679382][  T291] RDX: ffff88810ca88000 RSI: 0000000000000000 RDI: 0000000000000038
[   22.687182][  T291] RBP: ffffc90000b97f18 R08: ffffffff81b43fc3 R09: ffffed10237f0a50
[   22.695029][  T291] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[   22.702806][  T291] R13: 0000000000000008 R14: 1ffff110237f0a4a R15: dffffc0000000000
[   22.710634][  T291] FS:  00007f1517a6f6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   22.719386][  T291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.725795][  T291] CR2: 00007f1517a6fd58 CR3: 000000011ac1b000 CR4: 00000000003506b0
[   22.733635][  T291] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[pid   288] exit_group(0)               = ?
[pid   289] <... futex resumed>)        = ?
[pid   289] +++ exited with 0 +++
[   22.741447][  T291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   22.749258][  T291] Kernel panic - not syncing: Fatal exception
[   22.755351][  T291] Kernel Offset: disabled
[   22.759477][  T291] Rebooting in 86400 seconds..