./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1476751551

<...>
Warning: Permanently added '10.128.0.238' (ED25519) to the list of known hosts.
execve("./syz-executor1476751551", ["./syz-executor1476751551"], 0x7ffcf1a05e70 /* 10 vars */) = 0
brk(NULL)                               = 0x55556d03e000
brk(0x55556d03ed40)                     = 0x55556d03ed40
arch_prctl(ARCH_SET_FS, 0x55556d03e3c0) = 0
set_tid_address(0x55556d03e690)         = 296
set_robust_list(0x55556d03e6a0, 24)     = 0
rseq(0x55556d03ece0, 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-executor1476751551", 4096) = 28
getrandom("\xc2\xe5\x47\x09\x24\x83\x6f\x29", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55556d03ed40
brk(0x55556d05fd40)                     = 0x55556d05fd40
brk(0x55556d060000)                     = 0x55556d060000
mprotect(0x7f2d7be41000, 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(0x7f2d7be473ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f2d7bde02e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f2d7bdd1960}, 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) = 0x7f2d7bd5c000
mprotect(0x7f2d7bd5d000, 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=0x7f2d7bd7c990, parent_tid=0x7f2d7bd7c990, exit_signal=0, stack=0x7f2d7bd5c000, stack_size=0x20300, tls=0x7f2d7bd7c6c0} => {parent_tid=[297]}, 88) = 297
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0x7f2d7be473e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
futex(0x7f2d7be473ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 297 attached
 <unfinished ...>
[pid   297] set_robust_list(0x7f2d7bd7c9a0, 24) = 0
[pid   297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   297] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid   297] futex(0x7f2d7be473ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... futex resumed>)        = 0
[pid   296] futex(0x7f2d7be473e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   296] futex(0x7f2d7be473ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] <... futex resumed>)        = 1
[pid   297] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3
[pid   297] futex(0x7f2d7be473ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... futex resumed>)        = 0
[pid   296] futex(0x7f2d7be473e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   296] futex(0x7f2d7be473ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] <... futex resumed>)        = 1
[pid   297] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0
[pid   297] futex(0x7f2d7be473ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... futex resumed>)        = 0
[pid   296] futex(0x7f2d7be473e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   296] futex(0x7f2d7be473ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] <... futex resumed>)        = 1
[pid   297] 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   297] futex(0x7f2d7be473ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   296] <... futex resumed>)        = 0
[pid   296] futex(0x7f2d7be473e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   296] futex(0x7f2d7be473ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   297] <... futex resumed>)        = 1
[   24.277271][   T30] audit: type=1400 audit(1732450171.867:66): avc:  denied  { execmem } for  pid=296 comm="syz-executor147" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   24.298175][   T30] audit: type=1400 audit(1732450171.867:67): avc:  denied  { read write } for  pid=296 comm="syz-executor147" 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
[pid   297] read(3,  <unfinished ...>
[pid   296] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   296] futex(0x7f2d7be473fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f2d7bd3b000
[pid   296] mprotect(0x7f2d7bd3c000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid   296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f2d7bd5b990, parent_tid=0x7f2d7bd5b990, exit_signal=0, stack=0x7f2d7bd3b000, stack_size=0x20300, tls=0x7f2d7bd5b6c0} => {parent_tid=[299]}, 88) = 299
[pid   296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   296] futex(0x7f2d7be473f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   24.321922][   T30] audit: type=1400 audit(1732450171.867:68): avc:  denied  { open } for  pid=296 comm="syz-executor147" 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
[   24.345242][   T30] audit: type=1400 audit(1732450171.867:69): avc:  denied  { mounton } for  pid=296 comm="syz-executor147" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[pid   296] futex(0x7f2d7be473fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 299 attached
 <unfinished ...>
[pid   299] set_robust_list(0x7f2d7bd5b9a0, 24) = 0
[pid   299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid   299] 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   299] futex(0x7f2d7be473fc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   299] futex(0x7f2d7be473f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   296] <... futex resumed>)        = 0
[pid   296] futex(0x7f2d7be473f8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   299] <... futex resumed>)        = 0
[pid   296] futex(0x7f2d7be473fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] unlink("./file0/file0" <unfinished ...>
[pid   297] <... 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\x2b\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46
[pid   297] 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   297] futex(0x7f2d7be473ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   24.367996][   T30] audit: type=1400 audit(1732450171.887:70): avc:  denied  { mount } for  pid=296 comm="syz-executor147" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1
[   24.391409][  T299] general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] PREEMPT SMP KASAN
[   24.402946][  T299] KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
[   24.411190][  T299] CPU: 0 PID: 299 Comm: syz-executor147 Not tainted 5.15.168-syzkaller-00719-g101e665d55a8 #0
[pid   297] futex(0x7f2d7be473e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   296] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[   24.421263][  T299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   24.431155][  T299] RIP: 0010:do_unlinkat+0x3e1/0x920
[   24.436188][  T299] Code: de e8 83 07 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 c3 5b f4 ff 49 8b 45 30 48 89 44 24 38 4c
[   24.455630][  T299] RSP: 0018:ffffc90000997d60 EFLAGS: 00010202
[   24.461531][  T299] RAX: 0000000000000007 RBX: 0000000000000000 RCX: ffff88810cdb0000
[   24.469343][  T299] RDX: ffff88810cdb0000 RSI: 0000000000000000 RDI: 0000000000000038
[   24.477153][  T299] RBP: ffffc90000997ef8 R08: ffffffff81be60e2 R09: ffffed1021376694
[   24.484968][  T299] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[   24.492780][  T299] R13: 0000000000000008 R14: dffffc0000000000 R15: 1ffff1102137668e
[   24.500591][  T299] FS:  00007f2d7bd5b6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   24.509353][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.515775][  T299] CR2: 00007f2d7bd5bd58 CR3: 0000000121801000 CR4: 00000000003506b0
[pid   296] exit_group(0)               = ?
[pid   297] <... futex resumed>)        = ?
[pid   297] +++ exited with 0 +++
[   24.523766][  T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.531571][  T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.539391][  T299] Call Trace:
[   24.542515][  T299]  <TASK>
[   24.545291][  T299]  ? __die_body+0x62/0xb0
[   24.549453][  T299]  ? die_addr+0x9f/0xd0
[   24.553448][  T299]  ? exc_general_protection+0x311/0x4b0
[   24.558834][  T299]  ? __kasan_check_write+0x14/0x20
[   24.563773][  T299]  ? asm_exc_general_protection+0x27/0x30
[   24.569326][  T299]  ? do_unlinkat+0x362/0x920
[   24.573753][  T299]  ? do_unlinkat+0x3e1/0x920
[   24.578182][  T299]  ? fsnotify_link_count+0x100/0x100
[   24.583302][  T299]  ? strncpy_from_user+0x18e/0x2d0
[   24.588250][  T299]  ? getname_flags+0x1fd/0x520
[   24.592847][  T299]  __x64_sys_unlink+0x49/0x50
[   24.597363][  T299]  x64_sys_call+0x289/0x9a0
[   24.601700][  T299]  do_syscall_64+0x3b/0xb0
[   24.605954][  T299]  ? clear_bhb_loop+0x35/0x90
[   24.610467][  T299]  entry_SYSCALL_64_after_hwframe+0x66/0xd0
[   24.616198][  T299] RIP: 0033:0x7f2d7bdba439
[   24.620538][  T299] 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
[   24.639979][  T299] RSP: 002b:00007f2d7bd5b218 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
[   24.648221][  T299] RAX: ffffffffffffffda RBX: 00007f2d7be473f8 RCX: 00007f2d7bdba439
[   24.656034][  T299] RDX: 00007f2d7bdba439 RSI: 0000000000000000 RDI: 0000000020000100
[   24.663957][  T299] RBP: 00007f2d7be473f0 R08: 0000000000000000 R09: 0000000000000000
[   24.671779][  T299] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d7be14034
[   24.679589][  T299] R13: 000000000000006e R14: 0030656c69662f30 R15: 2f30656c69662f2e
[   24.687397][  T299]  </TASK>
[   24.690277][  T299] Modules linked in:
[   24.694580][  T299] ---[ end trace 4b0588560e7359ac ]---
[   24.699843][  T299] RIP: 0010:do_unlinkat+0x3e1/0x920
[   24.704913][  T299] Code: de e8 83 07 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 c3 5b f4 ff 49 8b 45 30 48 89 44 24 38 4c
[   24.724346][  T299] RSP: 0018:ffffc90000997d60 EFLAGS: 00010202
[   24.730217][  T299] RAX: 0000000000000007 RBX: 0000000000000000 RCX: ffff88810cdb0000
[   24.738060][  T299] RDX: ffff88810cdb0000 RSI: 0000000000000000 RDI: 0000000000000038
[   24.745874][  T299] RBP: ffffc90000997ef8 R08: ffffffff81be60e2 R09: ffffed1021376694
[   24.753684][  T299] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[   24.761468][  T299] R13: 0000000000000008 R14: dffffc0000000000 R15: 1ffff1102137668e
[   24.769311][  T299] FS:  00007f2d7bd5b6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   24.778148][  T299] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.784614][  T299] CR2: 00007f2d7bd5bd58 CR3: 0000000121801000 CR4: 00000000003506b0
[   24.792384][  T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   24.800188][  T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   24.808116][  T299] Kernel panic - not syncing: Fatal exception
[   24.814268][  T299] Kernel Offset: disabled
[   24.818400][  T299] Rebooting in 86400 seconds..