./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor653854880

<...>
Warning: Permanently added '10.128.0.108' (ED25519) to the list of known hosts.
execve("./syz-executor653854880", ["./syz-executor653854880"], 0x7ffec4732040 /* 10 vars */) = 0
brk(NULL)                               = 0x55558e3e4000
brk(0x55558e3e4d40)                     = 0x55558e3e4d40
arch_prctl(ARCH_SET_FS, 0x55558e3e43c0) = 0
set_tid_address(0x55558e3e4690)         = 298
set_robust_list(0x55558e3e46a0, 24)     = 0
rseq(0x55558e3e4ce0, 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-executor653854880", 4096) = 27
getrandom("\xc2\x5c\xba\x42\xfa\x45\xc8\x43", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55558e3e4d40
brk(0x55558e405d40)                     = 0x55558e405d40
brk(0x55558e406000)                     = 0x55558e406000
mprotect(0x7f278393d000, 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
write(1, "executing program\n", 18executing program
)     = 18
futex(0x7f27839433ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f27838dc520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f27838cdba0}, 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) = 0x7f2783858000
mprotect(0x7f2783859000, 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=0x7f2783878990, parent_tid=0x7f2783878990, exit_signal=0, stack=0x7f2783858000, stack_size=0x20300, tls=0x7f27838786c0} => {parent_tid=[299]}, 88) = 299
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0x7f27839433e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
futex(0x7f27839433ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 299 attached
 <unfinished ...>
[pid   299] set_robust_list(0x7f27838789a0, 24) = 0
[pid   299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   299] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   299] futex(0x7f27839433ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   298] futex(0x7f27839433e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   298] futex(0x7f27839433ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] <... futex resumed>)        = 1
[pid   299] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3
[pid   299] futex(0x7f27839433ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   298] futex(0x7f27839433e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   298] futex(0x7f27839433ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] <... futex resumed>)        = 1
[pid   299] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0
[pid   299] futex(0x7f27839433ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   298] futex(0x7f27839433e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   298] futex(0x7f27839433ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] <... futex resumed>)        = 1
[pid   299] 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\x26\x00\x00\x00\x00\x00\x02\x00\xfb\xff\xff\x73\x09\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   299] futex(0x7f27839433ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   298] futex(0x7f27839433e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   298] futex(0x7f27839433ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] <... futex resumed>)        = 1
[   24.107549][   T28] audit: type=1400 audit(1735571661.149:66): avc:  denied  { execmem } for  pid=298 comm="syz-executor653" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   24.126972][   T28] audit: type=1400 audit(1735571661.149:67): avc:  denied  { read write } for  pid=298 comm="syz-executor653" name="fuse" dev="devtmpfs" ino=93 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1
[pid   299] read(3,  <unfinished ...>
[pid   298] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   298] futex(0x7f27839433fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f2783837000
[pid   298] mprotect(0x7f2783838000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f2783857990, parent_tid=0x7f2783857990, exit_signal=0, stack=0x7f2783837000, stack_size=0x20300, tls=0x7f27838576c0} => {parent_tid=[301]}, 88) = 301
[pid   298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   298] futex(0x7f27839433f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   298] futex(0x7f27839433fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 301 attached
 <unfinished ...>
[pid   301] set_robust_list(0x7f27838579a0, 24) = 0
[pid   301] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   301] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x29\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   301] futex(0x7f27839433fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   298] futex(0x7f27839433f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   298] futex(0x7f27839433fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   301] <... futex resumed>)        = 1
[pid   301] unlink("./file0/file0" <unfinished ...>
[pid   299] <... 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\x2d\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46
[pid   299] write(3, "\x96\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\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\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"..., 150) = 150
[pid   299] futex(0x7f27839433ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   24.150462][   T28] audit: type=1400 audit(1735571661.149:68): avc:  denied  { open } for  pid=298 comm="syz-executor653" path="/dev/fuse" dev="devtmpfs" ino=93 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1
[   24.167240][  T301] general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN
[   24.174363][   T28] audit: type=1400 audit(1735571661.149:69): avc:  denied  { mounton } for  pid=298 comm="syz-executor653" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   24.185305][  T301] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]
[   24.185321][  T301] CPU: 0 PID: 301 Comm: syz-executor653 Not tainted 6.1.118-syzkaller-00077-g3f924195e222 #0
[   24.185341][  T301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   24.185352][  T301] RIP: 0010:do_unlinkat+0x3e1/0x920
[   24.208093][   T28] audit: type=1400 audit(1735571661.149:70): avc:  denied  { mount } for  pid=298 comm="syz-executor653" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1
[   24.216027][  T301] Code: de e8 c3 db ab 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 43 4b f3 ff 49 8b 45 30 48 89 44 24 38 4c
[   24.216045][  T301] RSP: 0018:ffffc90000ee7d60 EFLAGS: 00010207
[   24.216063][  T301] RAX: 0000000000000006 RBX: 0000000000000000 RCX: ffff88811100e540
[   24.216077][  T301] RDX: ffff88811100e540 RSI: 0000000000000000 RDI: 0000000000000036
[   24.304094][  T301] RBP: ffffc90000ee7ef8 R08: ffffffff81c9ae42 R09: fffff520001dcf85
[   24.311900][  T301] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[   24.319719][  T301] R13: 0000000000000006 R14: dffffc0000000000 R15: 1ffff110200c10d2
[   24.327530][  T301] FS:  00007f27838576c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   24.336292][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.342714][  T301] CR2: 00007f2783857d58 CR3: 0000000122138000 CR4: 00000000003506b0
[   24.350534][  T301] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.358426][  T301] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.366238][  T301] Call Trace:
[   24.369363][  T301]  <TASK>
[   24.372141][  T301]  ? __die_body+0x62/0xb0
[   24.376304][  T301]  ? die_addr+0x9f/0xd0
[   24.380384][  T301]  ? exc_general_protection+0x317/0x4c0
[   24.385771][  T301]  ? asm_exc_general_protection+0x27/0x30
[   24.391410][  T301]  ? do_unlinkat+0x362/0x920
[   24.395836][  T301]  ? do_unlinkat+0x3e1/0x920
[   24.400262][  T301]  ? fsnotify_link_count+0x100/0x100
[   24.405384][  T301]  ? strncpy_from_user+0x169/0x2b0
[   24.410327][  T301]  ? getname_flags+0x1fd/0x520
[   24.414931][  T301]  __x64_sys_unlink+0x49/0x50
[   24.419441][  T301]  x64_sys_call+0x289/0x9a0
[   24.423780][  T301]  do_syscall_64+0x3b/0xb0
[   24.428035][  T301]  ? clear_bhb_loop+0x55/0xb0
[   24.432546][  T301]  entry_SYSCALL_64_after_hwframe+0x68/0xd2
[   24.438274][  T301] RIP: 0033:0x7f27838b6679
[   24.442528][  T301] 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
[   24.461968][  T301] RSP: 002b:00007f2783857218 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
[   24.470214][  T301] RAX: ffffffffffffffda RBX: 00007f27839433f8 RCX: 00007f27838b6679
[   24.478045][  T301] RDX: 00007f27838b6679 RSI: 00000000000f4240 RDI: 0000000020000100
[   24.485837][  T301] RBP: 00007f27839433f0 R08: 0000000000000000 R09: 0000000000000000
[   24.493646][  T301] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2783910034
[   24.501459][  T301] R13: 000000000000006e R14: 0030656c69662f30 R15: 2f30656c69662f2e
[pid   299] futex(0x7f27839433e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   298] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[   24.509278][  T301]  </TASK>
[   24.512136][  T301] Modules linked in:
[   24.516573][  T301] ---[ end trace 0000000000000000 ]---
[   24.521985][  T301] RIP: 0010:do_unlinkat+0x3e1/0x920
[   24.527018][  T301] Code: de e8 c3 db ab 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 43 4b f3 ff 49 8b 45 30 48 89 44 24 38 4c
[   24.546626][  T301] RSP: 0018:ffffc90000ee7d60 EFLAGS: 00010207
[   24.552635][  T301] RAX: 0000000000000006 RBX: 0000000000000000 RCX: ffff88811100e540
[   24.560389][  T301] RDX: ffff88811100e540 RSI: 0000000000000000 RDI: 0000000000000036
[   24.568240][  T301] RBP: ffffc90000ee7ef8 R08: ffffffff81c9ae42 R09: fffff520001dcf85
[   24.576024][  T301] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[   24.583844][  T301] R13: 0000000000000006 R14: dffffc0000000000 R15: 1ffff110200c10d2
[   24.591647][  T301] FS:  00007f27838576c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
[   24.600397][  T301] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.606851][  T301] CR2: 00007f2783857d58 CR3: 0000000122138000 CR4: 00000000003506b0
[   24.614649][  T301] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.622467][  T301] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.630258][  T301] Kernel panic - not syncing: Fatal exception
[   24.636280][  T301] Kernel Offset: disabled
[   24.640447][  T301] Rebooting in 86400 seconds..