./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor918448874

<...>
Warning: Permanently added '10.128.0.188' (ED25519) to the list of known hosts.
execve("./syz-executor918448874", ["./syz-executor918448874"], 0x7fff3184b680 /* 10 vars */) = 0
brk(NULL)                               = 0x55555690f000
brk(0x55555690fd40)                     = 0x55555690fd40
arch_prctl(ARCH_SET_FS, 0x55555690f3c0) = 0
set_tid_address(0x55555690f690)         = 291
set_robust_list(0x55555690f6a0, 24)     = 0
rseq(0x55555690fce0, 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-executor918448874", 4096) = 27
getrandom("\x54\x1a\xbf\xc9\x83\x25\xad\xba", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55555690fd40
brk(0x555556930d40)                     = 0x555556930d40
brk(0x555556931000)                     = 0x555556931000
mprotect(0x7f6c3ceef000, 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
futex(0x7f6c3cef53ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f6c3ce8e360, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6c3ce7f9e0}, 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) = 0x7f6c3ce0a000
mprotect(0x7f6c3ce0b000, 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=0x7f6c3ce2a990, parent_tid=0x7f6c3ce2a990, exit_signal=0, stack=0x7f6c3ce0a000, stack_size=0x20300, tls=0x7f6c3ce2a6c0} => {parent_tid=[292]}, 88) = 292
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0x7f6c3cef53e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
futex(0x7f6c3cef53ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 292 attached
 <unfinished ...>
[pid   292] set_robust_list(0x7f6c3ce2a9a0, 24) = 0
[pid   292] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   292] mkdir("./file0", 000)       = 0
[pid   292] futex(0x7f6c3cef53ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   292] futex(0x7f6c3cef53e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   291] <... futex resumed>)        = 0
[pid   291] futex(0x7f6c3cef53e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   291] futex(0x7f6c3cef53ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   292] <... futex resumed>)        = 0
[pid   292] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3
[pid   292] futex(0x7f6c3cef53ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   291] <... futex resumed>)        = 0
[pid   291] futex(0x7f6c3cef53e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   291] futex(0x7f6c3cef53ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   292] <... futex resumed>)        = 1
[pid   292] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0
[pid   292] futex(0x7f6c3cef53ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   291] <... futex resumed>)        = 0
[pid   291] futex(0x7f6c3cef53e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   291] futex(0x7f6c3cef53ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   292] <... futex resumed>)        = 1
[pid   292] read(3, "\x68\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\x24\x00\x00\x00\x00\x00\x02\x00\xfb\xff\xff\x73\x01\x00\x00\x80\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"..., 8224) = 104
[pid   292] futex(0x7f6c3cef53ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   291] <... futex resumed>)        = 0
[pid   291] futex(0x7f6c3cef53e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   291] futex(0x7f6c3cef53ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   292] <... futex resumed>)        = 1
[pid   292] read(3,  <unfinished ...>
[pid   291] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   291] futex(0x7f6c3cef53ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[   19.605924][   T30] audit: type=1400 audit(1711845665.234:66): avc:  denied  { execmem } for  pid=291 comm="syz-executor918" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   19.612871][   T30] audit: type=1400 audit(1711845665.244:67): avc:  denied  { read write } for  pid=291 comm="syz-executor918" name="fuse" dev="devtmpfs" ino=91 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1
[   19.618617][   T30] audit: type=1400 audit(1711845665.244:68): avc:  denied  { open } for  pid=291 comm="syz-executor918" path="/dev/fuse" dev="devtmpfs" ino=91 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1
[   19.622092][   T30] audit: type=1400 audit(1711845665.244:69): avc:  denied  { mounton } for  pid=291 comm="syz-executor918" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   19.625162][   T30] audit: type=1400 audit(1711845665.244:70): avc:  denied  { mount } for  pid=291 comm="syz-executor918" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1
[pid   291] futex(0x7f6c3cef53ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   291] futex(0x7f6c3cef53fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   291] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6c3cde9000
[pid   291] mprotect(0x7f6c3cdea000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   291] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   291] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6c3ce09990, parent_tid=0x7f6c3ce09990, exit_signal=0, stack=0x7f6c3cde9000, stack_size=0x20300, tls=0x7f6c3ce096c0}./strace-static-x86_64: Process 294 attached
 => {parent_tid=[294]}, 88) = 294
[pid   291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   291] futex(0x7f6c3cef53f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   291] futex(0x7f6c3cef53fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] set_robust_list(0x7f6c3ce099a0, 24) = 0
[pid   294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   294] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x27\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", 80) = 80
[pid   294] futex(0x7f6c3cef53fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   291] <... futex resumed>)        = 0
[pid   291] futex(0x7f6c3cef53f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   291] futex(0x7f6c3cef53fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... futex resumed>)        = 1
[pid   294] unlink("./file0/file0" <unfinished ...>
[pid   292] <... 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\x26\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46
[pid   292] write(3, "\xa9\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"..., 169) = 169
[pid   292] futex(0x7f6c3cef53ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   19.668203][  T294] general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] PREEMPT SMP KASAN
[   19.679745][  T294] KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f]
[   19.687992][  T294] CPU: 1 PID: 294 Comm: syz-executor918 Not tainted 5.15.148-syzkaller-00718-g993bed180178 #0
[   19.698052][  T294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[   19.707948][  T294] RIP: 0010:do_unlinkat+0x3e1/0x920
[   19.712985][  T294] Code: de e8 63 56 b2 ff 31 c0 81 fb 00 00 20 00 0f 94 c0 41 be ec ff ff ff 41 29 c6 e9 bd 00 00 00 49 8d 7d 30 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 23 63 f4 ff 49 8b 45 30 48 89 44 24 38 4c
[   19.732513][  T294] RSP: 0018:ffffc90000977d80 EFLAGS: 00010206
[   19.738421][  T294] RAX: 0000000000000009 RBX: 0000000000000000 RCX: ffff88811e0b8000
[   19.746227][  T294] RDX: ffff88811e0b8000 RSI: 0000000000000000 RDI: 0000000000000049
[   19.754034][  T294] RBP: ffffc90000977f08 R08: ffffffff81bdce72 R09: ffffed1023829d82
[   19.761846][  T294] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[   19.769664][  T294] R13: 0000000000000019 R14: dffffc0000000000 R15: 1ffff11023829d7c
[   19.777469][  T294] FS:  00007f6c3ce096c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   19.786245][  T294] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.792662][  T294] CR2: 00007f6c3ce09d58 CR3: 000000011e144000 CR4: 00000000003506a0
[   19.800473][  T294] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   19.808368][  T294] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   19.816276][  T294] Call Trace:
[   19.819391][  T294]  <TASK>
[   19.822168][  T294]  ? __die_body+0x62/0xb0
[   19.826511][  T294]  ? die_addr+0x9f/0xd0
[   19.830514][  T294]  ? exc_general_protection+0x311/0x4b0
[   19.835885][  T294]  ? asm_exc_general_protection+0x27/0x30
[   19.841524][  T294]  ? do_unlinkat+0x362/0x920
[   19.845947][  T294]  ? do_unlinkat+0x3e1/0x920
[   19.850378][  T294]  ? fsnotify_link_count+0x100/0x100
[   19.855497][  T294]  ? getname_flags+0x1fd/0x520
[   19.860096][  T294]  __x64_sys_unlink+0x49/0x50
[   19.864610][  T294]  do_syscall_64+0x3d/0xb0
[   19.869038][  T294]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   19.874766][  T294] RIP: 0033:0x7f6c3ce684b9
[   19.879018][  T294] 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
[   19.903407][  T294] RSP: 002b:00007f6c3ce09218 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
[   19.911656][  T294] RAX: ffffffffffffffda RBX: 00007f6c3cef53f8 RCX: 00007f6c3ce684b9
[pid   292] futex(0x7f6c3cef53e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   291] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[   19.919461][  T294] RDX: 00007f6c3ce684b9 RSI: 00000000000f4240 RDI: 0000000020000100
[   19.927282][  T294] RBP: 00007f6c3cef53f0 R08: 0000000000000000 R09: 0000000000000000
[   19.935091][  T294] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6c3cec2024
[   19.942898][  T294] R13: 000000000000006e R14: 0030656c69662f30 R15: 2f30656c69662f2e
[   19.950711][  T294]  </TASK>
[   19.953571][  T294] Modules linked in:
[   19.957702][  T294] ---[ end trace bf77fc7a698f13d8 ]---
[   19.963082][  T294] RIP: 0010:do_unlinkat+0x3e1/0x920
[   19.968112][  T294] Code: de e8 63 56 b2 ff 31 c0 81 fb 00 00 20 00 0f 94 c0 41 be ec ff ff ff 41 29 c6 e9 bd 00 00 00 49 8d 7d 30 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 23 63 f4 ff 49 8b 45 30 48 89 44 24 38 4c
[   19.987682][  T294] RSP: 0018:ffffc90000977d80 EFLAGS: 00010206
[   19.993527][  T294] RAX: 0000000000000009 RBX: 0000000000000000 RCX: ffff88811e0b8000
[   20.001322][  T294] RDX: ffff88811e0b8000 RSI: 0000000000000000 RDI: 0000000000000049
[   20.009258][  T294] RBP: ffffc90000977f08 R08: ffffffff81bdce72 R09: ffffed1023829d82
[   20.016998][  T294] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[   20.024834][  T294] R13: 0000000000000019 R14: dffffc0000000000 R15: 1ffff11023829d7c
[   20.032645][  T294] FS:  00007f6c3ce096c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   20.041415][  T294] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.047812][  T294] CR2: 00007f6c3ce09d58 CR3: 000000011e144000 CR4: 00000000003506a0
[   20.055772][  T294] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[pid   291] exit_group(0)               = ?
[pid   292] <... futex resumed>)        = ?
[pid   292] +++ exited with 0 +++
[   20.063567][  T294] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   20.071380][  T294] Kernel panic - not syncing: Fatal exception
[   20.077498][  T294] Kernel Offset: disabled
[   20.081624][  T294] Rebooting in 86400 seconds..