./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1885887375

<...>
Warning: Permanently added '10.128.10.44' (ECDSA) to the list of known hosts.
execve("./syz-executor1885887375", ["./syz-executor1885887375"], 0x7ffc55c77960 /* 10 vars */) = 0
brk(NULL)                               = 0x555556d3f000
brk(0x555556d3fc40)                     = 0x555556d3fc40
arch_prctl(ARCH_SET_FS, 0x555556d3f300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x555556d3f5d0)         = 293
set_robust_list(0x555556d3f5e0, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f80818342b0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f8081834980}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f8081834350, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f8081834980}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1885887375", 4096) = 28
brk(0x555556d60c40)                     = 0x555556d60c40
brk(0x555556d61000)                     = 0x555556d61000
mprotect(0x7f80818f6000, 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(0x7f80818fc4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f8081804000
mprotect(0x7f8081805000, 131072, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f80818243f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 294 attached
, parent_tid=[294], tls=0x7f8081824700, child_tidptr=0x7f80818249d0) = 294
[pid   294] set_robust_list(0x7f80818249e0, 24) = 0
[pid   294] futex(0x7f80818fc4c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   293] futex(0x7f80818fc4c8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   294] <... futex resumed>)        = 0
[pid   294] mkdirat(AT_FDCWD, "./file0", 000 <unfinished ...>
[pid   293] futex(0x7f80818fc4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... mkdirat resumed>)      = 0
[pid   294] futex(0x7f80818fc4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   293] <... futex resumed>)        = 0
[pid   293] futex(0x7f80818fc4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   293] futex(0x7f80818fc4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/fuse", O_RDWR) = 3
[pid   294] futex(0x7f80818fc4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   293] <... futex resumed>)        = 0
[pid   293] futex(0x7f80818fc4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   293] futex(0x7f80818fc4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0
[pid   294] futex(0x7f80818fc4cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... futex resumed>)        = 0
[pid   293] futex(0x7f80818fc4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   293] futex(0x7f80818fc4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... futex resumed>)        = 1
[pid   294] 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\xf3\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 8192) = 104
[pid   294] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x26\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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(0x7f80818fc4cc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... futex resumed>)        = 0
[pid   293] futex(0x7f80818fc4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   293] futex(0x7f80818fc4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... futex resumed>)        = 1
[   22.762313][   T30] audit: type=1400 audit(1684075870.527:66): avc:  denied  { execmem } for  pid=293 comm="syz-executor188" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   22.784421][   T30] audit: type=1400 audit(1684075870.557:67): avc:  denied  { read write } for  pid=293 comm="syz-executor188" 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   294] mount(NULL, "./file0/file0/file0", NULL, 0, NULL <unfinished ...>
[pid   293] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   293] futex(0x7f80818fc4dc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   293] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f80817e3000
[pid   293] mprotect(0x7f80817e4000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   293] clone(child_stack=0x7f80818033f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 296 attached
, parent_tid=[296], tls=0x7f8081803700, child_tidptr=0x7f80818039d0) = 296
[pid   293] futex(0x7f80818fc4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   293] futex(0x7f80818fc4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] set_robust_list(0x7f80818039e0, 24) = 0
[pid   296] read(3, "\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", 8224) = 46
[pid   296] futex(0x7f80818fc4dc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... futex resumed>)        = 0
[pid   293] futex(0x7f80818fc4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   293] futex(0x7f80818fc4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   296] <... futex resumed>)        = 1
[   22.807937][   T30] audit: type=1400 audit(1684075870.557:68): avc:  denied  { open } for  pid=293 comm="syz-executor188" 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
[   22.831159][   T30] audit: type=1400 audit(1684075870.557:69): avc:  denied  { mounton } for  pid=293 comm="syz-executor188" 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] write(3, "\xa0\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160) = 160
[pid   296] futex(0x7f80818fc4dc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   296] futex(0x7f80818fc4d8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   293] <... futex resumed>)        = 0
[   22.854137][   T30] audit: type=1400 audit(1684075870.557:70): avc:  denied  { mount } for  pid=293 comm="syz-executor188" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1
[   22.856259][  T294] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
[   22.887559][  T294] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
[   22.895837][  T294] CPU: 0 PID: 294 Comm: syz-executor188 Not tainted 5.15.106-syzkaller-00249-g19c0ed55a470 #0
[   22.905870][  T294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
[   22.915770][  T294] RIP: 0010:step_into+0x1b6/0xe70
[   22.920639][  T294] Code: 20 0f 85 99 0a 00 00 44 8b 3b 43 80 3c 2c 00 74 0a 48 8b 7c 24 18 e8 e9 d0 f3 ff 48 8b 9c 24 b8 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 86 0a 00 00 8b 1b 89 de 81 e6 00 00 07
[   22.941507][  T294] RSP: 0018:ffffc900007cf7e0 EFLAGS: 00010202
[   22.947408][  T294] RAX: 0000000000000002 RBX: 0000000000000010 RCX: ffff88811e60cf00
[   22.955223][  T294] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[pid   293] exit_group(0)               = ?
[pid   296] <... futex resumed>)        = ?
[pid   296] +++ exited with 0 +++
[   22.963033][  T294] RBP: ffffc900007cf910 R08: ffffffff81bd6190 R09: ffffed1021ed6efd
[   22.970853][  T294] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920000f9f13
[   22.978653][  T294] R13: dffffc0000000000 R14: ffffc900007cfc40 R15: 0000000000000011
[   22.986466][  T294] FS:  00007f8081824700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   22.995236][  T294] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.001656][  T294] CR2: 00007f8081803718 CR3: 000000011c1b2000 CR4: 00000000003506b0
[   23.009469][  T294] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.017277][  T294] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.025090][  T294] Call Trace:
[   23.028221][  T294]  <TASK>
[   23.030992][  T294]  ? set_root+0x400/0x400
[   23.035161][  T294]  ? up_read+0x5a/0x180
[   23.039153][  T294]  walk_component+0x359/0x610
[   23.043665][  T294]  ? nd_alloc_stack+0xf0/0xf0
[   23.048203][  T294]  ? security_inode_permission+0xb0/0xf0
[   23.053647][  T294]  ? fuse_do_getattr+0x7e0/0x7e0
[   23.058442][  T294]  link_path_walk+0x642/0xd90
[   23.062935][  T294]  ? handle_lookup_down+0x130/0x130
[   23.067969][  T294]  path_lookupat+0xa0/0x450
[   23.072315][  T294]  filename_lookup+0x230/0x5c0
[   23.076906][  T294]  ? hashlen_string+0x120/0x120
[   23.081596][  T294]  ? getname_flags+0x1fd/0x520
[   23.086193][  T294]  user_path_at_empty+0x43/0x1a0
[   23.090964][  T294]  __se_sys_mount+0x285/0x3b0
[   23.095481][  T294]  ? __x64_sys_mount+0xd0/0xd0
[   23.100090][  T294]  ? __kasan_check_read+0x11/0x20
[   23.104940][  T294]  __x64_sys_mount+0xbf/0xd0
[   23.109366][  T294]  do_syscall_64+0x3d/0xb0
[   23.113617][  T294]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   23.119348][  T294] RIP: 0033:0x7f8081872469
[   23.123610][  T294] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 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 b8 ff ff ff f7 d8 64 89 01 48
[   23.143040][  T294] RSP: 002b:00007f80818242f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   23.151286][  T294] RAX: ffffffffffffffda RBX: 00007f80818fc4c0 RCX: 00007f8081872469
[   23.159096][  T294] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
[   23.166910][  T294] RBP: 00007f80818ca01c R08: 0000000000000000 R09: 0000000000000000
[   23.174721][  T294] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e
[   23.182532][  T294] R13: 0000000000000003 R14: 00007f80818ca038 R15: 00007f80818fc4c8
[   23.190349][  T294]  </TASK>
[   23.193208][  T294] Modules linked in:
[   23.197103][  T294] ---[ end trace 8230d051f0ffc410 ]---
[   23.202478][  T294] RIP: 0010:step_into+0x1b6/0xe70
[   23.207316][  T294] Code: 20 0f 85 99 0a 00 00 44 8b 3b 43 80 3c 2c 00 74 0a 48 8b 7c 24 18 e8 e9 d0 f3 ff 48 8b 9c 24 b8 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 86 0a 00 00 8b 1b 89 de 81 e6 00 00 07
[   23.226729][  T294] RSP: 0018:ffffc900007cf7e0 EFLAGS: 00010202
[   23.232594][  T294] RAX: 0000000000000002 RBX: 0000000000000010 RCX: ffff88811e60cf00
[   23.240406][  T294] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   23.248205][  T294] RBP: ffffc900007cf910 R08: ffffffff81bd6190 R09: ffffed1021ed6efd
[   23.256007][  T294] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920000f9f13
[   23.263835][  T294] R13: dffffc0000000000 R14: ffffc900007cfc40 R15: 0000000000000011
[   23.271645][  T294] FS:  00007f8081824700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   23.280419][  T294] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.286847][  T294] CR2: 00007f8081803718 CR3: 000000011c1b2000 CR4: 00000000003506b0
[   23.294889][  T294] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.302714][  T294] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   23.310524][  T294] Kernel panic - not syncing: Fatal exception
[   23.316468][  T294] Kernel Offset: disabled
[   23.320580][  T294] Rebooting in 86400 seconds..