./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3584355856 <...> Warning: Permanently added '10.128.0.138' (ED25519) to the list of known hosts. execve("./syz-executor3584355856", ["./syz-executor3584355856"], 0x7ffdd78de060 /* 10 vars */) = 0 brk(NULL) = 0x555557285000 brk(0x555557285d40) = 0x555557285d40 arch_prctl(ARCH_SET_FS, 0x5555572853c0) = 0 set_tid_address(0x555557285690) = 295 set_robust_list(0x5555572856a0, 24) = 0 rseq(0x555557285ce0, 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-executor3584355856", 4096) = 28 getrandom("\x28\x7f\x92\x26\x21\xec\xf3\x00", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557285d40 brk(0x5555572a6d40) = 0x5555572a6d40 brk(0x5555572a7000) = 0x5555572a7000 mprotect(0x7f033f2f5000, 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(0x7f033f2fb3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f033f2944e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f033f285b60}, 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) = 0x7f033f210000 mprotect(0x7f033f211000, 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=0x7f033f230990, parent_tid=0x7f033f230990, exit_signal=0, stack=0x7f033f210000, stack_size=0x20300, tls=0x7f033f2306c0} => {parent_tid=[296]}, 88) = 296 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 futex(0x7f033f2fb3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 futex(0x7f033f2fb3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x7f033f2309a0, 24) = 0 [pid 296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 296] mkdir("./file0", 000) = 0 [pid 296] futex(0x7f033f2fb3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f033f2fb3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f033f2fb3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... futex resumed>) = 1 [pid 296] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3 [pid 296] futex(0x7f033f2fb3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f033f2fb3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f033f2fb3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... futex resumed>) = 1 [pid 296] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [pid 296] futex(0x7f033f2fb3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f033f2fb3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f033f2fb3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... futex resumed>) = 1 [pid 296] 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\x25\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 296] futex(0x7f033f2fb3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f033f2fb3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f033f2fb3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... futex resumed>) = 1 [pid 296] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x1f\x00\x00\x00\x00\x00\x00\x00\x90\xa3\xee\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", 80) = 80 [pid 296] futex(0x7f033f2fb3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f033f2fb3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f033f2fb3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... futex resumed>) = 1 [ 21.652821][ T28] audit: type=1400 audit(1699536869.124:66): avc: denied { execmem } for pid=295 comm="syz-executor358" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.672376][ T28] audit: type=1400 audit(1699536869.134:67): avc: denied { read write } for pid=295 comm="syz-executor358" 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 296] read(3, [pid 295] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 295] futex(0x7f033f2fb3fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f033f1ef000 [pid 295] mprotect(0x7f033f1f0000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 295] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 295] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f033f20f990, parent_tid=0x7f033f20f990, exit_signal=0, stack=0x7f033f1ef000, stack_size=0x20300, tls=0x7f033f20f6c0} => {parent_tid=[298]}, 88) = 298 [pid 295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 295] futex(0x7f033f2fb3f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f033f2fb3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x7f033f20f9a0, 24) = 0 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] write(-1, "\xa8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 168) = -1 EBADF (Bad file descriptor) [pid 298] futex(0x7f033f2fb3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f033f2fb3f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f033f2fb3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 298] <... futex resumed>) = 1 [pid 298] creat("./file0/file0", 000 [pid 296] <... 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\x2a\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [pid 296] write(3, "\xa8\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"..., 168) = 168 [pid 296] futex(0x7f033f2fb3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 21.696550][ T28] audit: type=1400 audit(1699536869.134:68): avc: denied { open } for pid=295 comm="syz-executor358" 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 [ 21.719994][ T28] audit: type=1400 audit(1699536869.134:69): avc: denied { mounton } for pid=295 comm="syz-executor358" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 21.721723][ T298] general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] PREEMPT SMP KASAN [ 21.743469][ T28] audit: type=1400 audit(1699536869.144:70): avc: denied { mount } for pid=295 comm="syz-executor358" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 21.754342][ T298] KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f] [ 21.754355][ T298] CPU: 1 PID: 298 Comm: syz-executor358 Not tainted 6.1.43-syzkaller-00004-g9d6ac9dc6ac8 #0 [ 21.754369][ T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 21.754376][ T298] RIP: 0010:fuse_atomic_open+0x166/0x3a0 [ 21.810709][ T298] Code: 45 fe 8b 5d c4 89 de 83 e6 40 31 ff e8 13 72 60 ff 89 d8 83 e0 40 75 07 e8 57 6e 60 ff eb 25 49 8d 5f 30 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 2b f7 a6 ff 48 83 3b 00 74 24 e8 [ 21.830414][ T298] RSP: 0018:ffffc90000e778f8 EFLAGS: 00010206 [ 21.836300][ T298] RAX: 0000000000000009 RBX: 0000000000000048 RCX: ffff88810953a880 [ 21.844301][ T298] RDX: ffff88810953a880 RSI: 0000000000000040 RDI: 0000000000000000 [ 21.852099][ T298] RBP: ffffc90000e77950 R08: ffffffff82148e6d R09: 0000000000000003 [ 21.859953][ T298] R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000 [ 21.867811][ T298] R13: ffff888112157b80 R14: 0000000000000018 R15: 0000000000000018 [ 21.875882][ T298] FS: 00007f033f20f6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 21.885000][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.891509][ T298] CR2: 00005654fa775c68 CR3: 0000000121ef0000 CR4: 00000000003506a0 [ 21.899421][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.907217][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.915058][ T298] Call Trace: [ 21.918168][ T298] [ 21.920947][ T298] ? __die_body+0x62/0xb0 [ 21.925189][ T298] ? die_addr+0x9f/0xd0 [ 21.929190][ T298] ? exc_general_protection+0x317/0x4c0 [ 21.935004][ T298] ? asm_exc_general_protection+0x27/0x30 [ 21.940642][ T298] ? fuse_atomic_open+0x14d/0x3a0 [ 21.945768][ T298] ? fuse_atomic_open+0x166/0x3a0 [ 21.950981][ T298] ? fuse_atomic_open+0x14d/0x3a0 [ 21.957489][ T298] path_openat+0xf52/0x2d60 [ 21.961827][ T298] ? fuse_rename2+0x4ad0/0x4ad0 [ 21.966527][ T298] ? do_filp_open+0x480/0x480 [ 21.971028][ T298] do_filp_open+0x230/0x480 [ 21.975464][ T298] ? vfs_tmpfile+0x480/0x480 [ 21.981185][ T298] ? alloc_fd+0x4fa/0x5a0 [ 21.985442][ T298] do_sys_openat2+0x13f/0x850 [ 21.990035][ T298] ? ptrace_stop+0x709/0x930 [ 21.994462][ T298] ? do_sys_open+0x220/0x220 [ 21.998889][ T298] ? _raw_spin_unlock_irq+0x4d/0x70 [ 22.004140][ T298] ? ptrace_notify+0x249/0x350 [ 22.008786][ T298] __x64_sys_creat+0x11f/0x160 [ 22.013408][ T298] ? __x64_compat_sys_openat+0x290/0x290 [ 22.019116][ T298] ? syscall_enter_from_user_mode+0x6a/0x190 [ 22.024927][ T298] do_syscall_64+0x3d/0xb0 [ 22.029193][ T298] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 22.034924][ T298] RIP: 0033:0x7f033f26e639 [ 22.039433][ T298] 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 [ 22.058987][ T298] RSP: 002b:00007f033f20f218 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 22.067224][ T298] RAX: ffffffffffffffda RBX: 00007f033f2fb3f8 RCX: 00007f033f26e639 [ 22.075037][ T298] RDX: 00007f033f26e639 RSI: 0000000000000000 RDI: 0000000020000100 [ 22.082870][ T298] RBP: 00007f033f2fb3f0 R08: 0000000000000000 R09: 0000000000000000 [ 22.090661][ T298] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f033f2c8024 [pid 296] futex(0x7f033f2fb3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 295] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 22.098737][ T298] R13: 000000000000006e R14: 0030656c69662f30 R15: 2f30656c69662f2e [ 22.106546][ T298] [ 22.109410][ T298] Modules linked in: [ 22.113863][ T298] ---[ end trace 0000000000000000 ]--- [ 22.119319][ T298] RIP: 0010:fuse_atomic_open+0x166/0x3a0 [ 22.125088][ T298] Code: 45 fe 8b 5d c4 89 de 83 e6 40 31 ff e8 13 72 60 ff 89 d8 83 e0 40 75 07 e8 57 6e 60 ff eb 25 49 8d 5f 30 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 2b f7 a6 ff 48 83 3b 00 74 24 e8 [ 22.145152][ T298] RSP: 0018:ffffc90000e778f8 EFLAGS: 00010206 [ 22.151021][ T298] RAX: 0000000000000009 RBX: 0000000000000048 RCX: ffff88810953a880 [ 22.159280][ T298] RDX: ffff88810953a880 RSI: 0000000000000040 RDI: 0000000000000000 [ 22.167181][ T298] RBP: ffffc90000e77950 R08: ffffffff82148e6d R09: 0000000000000003 [ 22.175163][ T298] R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000 [ 22.182871][ T298] R13: ffff888112157b80 R14: 0000000000000018 R15: 0000000000000018 [ 22.190962][ T298] FS: 00007f033f20f6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [pid 295] exit_group(0) = ? [pid 296] <... futex resumed>) = ? [pid 296] +++ exited with 0 +++ [ 22.199828][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.206292][ T298] CR2: 00007f033f26ff60 CR3: 0000000121ef0000 CR4: 00000000003506b0 [ 22.214070][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.222310][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.230443][ T298] Kernel panic - not syncing: Fatal exception [ 22.236598][ T298] Kernel Offset: disabled [ 22.240899][ T298] Rebooting in 86400 seconds..