./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3021318611 <...> Warning: Permanently added '10.128.0.123' (ED25519) to the list of known hosts. execve("./syz-executor3021318611", ["./syz-executor3021318611"], 0x7ffd2126d690 /* 10 vars */) = 0 brk(NULL) = 0x55556d5ea000 brk(0x55556d5ead40) = 0x55556d5ead40 arch_prctl(ARCH_SET_FS, 0x55556d5ea3c0) = 0 set_tid_address(0x55556d5ea690) = 294 set_robust_list(0x55556d5ea6a0, 24) = 0 rseq(0x55556d5eace0, 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-executor3021318611", 4096) = 28 getrandom("\xaf\x49\x2b\xe2\xac\xa1\xcf\xaf", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556d5ead40 brk(0x55556d60bd40) = 0x55556d60bd40 brk(0x55556d60c000) = 0x55556d60c000 mprotect(0x7fd59dee8000, 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(0x7fd59deee3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7fd59de87360, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd59de789e0}, 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) = 0x7fd59de03000 mprotect(0x7fd59de04000, 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=0x7fd59de23990, parent_tid=0x7fd59de23990, exit_signal=0, stack=0x7fd59de03000, stack_size=0x20300, tls=0x7fd59de236c0} => {parent_tid=[295]}, 88) = 295 rt_sigprocmask(SIG_SETMASK, [], ./strace-static-x86_64: Process 295 attached NULL, 8) = 0 [pid 294] futex(0x7fd59deee3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7fd59deee3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] set_robust_list(0x7fd59de239a0, 24) = 0 [pid 295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 295] mkdir("./file0", 000) = 0 [pid 295] futex(0x7fd59deee3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 295] <... futex resumed>) = 1 [pid 294] futex(0x7fd59deee3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7fd59deee3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] openat(AT_FDCWD, "/dev/fuse", O_RDWR) = 3 [pid 295] futex(0x7fd59deee3ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 295] futex(0x7fd59deee3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7fd59deee3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 295] <... futex resumed>) = 0 [pid 294] futex(0x7fd59deee3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [pid 295] futex(0x7fd59deee3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7fd59deee3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7fd59deee3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] <... futex resumed>) = 1 [pid 295] read(3, "\x38\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\x20\x00\x00\x00\x00\x00\x02\x00\xfb\xff\xff\x83", 8224) = 56 [pid 295] futex(0x7fd59deee3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7fd59deee3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7fd59deee3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] <... futex resumed>) = 1 [ 32.525988][ T24] audit: type=1400 audit(1738278935.070:66): avc: denied { execmem } for pid=294 comm="syz-executor302" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [pid 295] read(3, [pid 294] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 32.555073][ T24] audit: type=1400 audit(1738278935.100:67): avc: denied { read write } for pid=294 comm="syz-executor302" name="fuse" dev="devtmpfs" ino=90 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 32.578553][ T24] audit: type=1400 audit(1738278935.100:68): avc: denied { open } for pid=294 comm="syz-executor302" path="/dev/fuse" dev="devtmpfs" ino=90 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 32.601922][ T24] audit: type=1400 audit(1738278935.100:69): avc: denied { mounton } for pid=294 comm="syz-executor302" 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 294] futex(0x7fd59deee3fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd59dde2000 [pid 294] mprotect(0x7fd59dde3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 294] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 294] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd59de02990, parent_tid=0x7fd59de02990, exit_signal=0, stack=0x7fd59dde2000, stack_size=0x20300, tls=0x7fd59de026c0} => {parent_tid=[297]}, 88) = 297 [pid 294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 294] futex(0x7fd59deee3f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7fd59deee3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x7fd59de029a0, 24) = 0 [pid 297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 297] 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 297] futex(0x7fd59deee3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7fd59deee3f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7fd59deee3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [pid 297] creat("./file0/file0", 000 [pid 295] <... 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\x29\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [pid 295] write(3, "\x95\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfe\xff\xff\xff\xfc\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\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\x10\x00\x00"..., 149) = 149 [pid 295] futex(0x7fd59deee3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 32.624486][ T24] audit: type=1400 audit(1738278935.100:70): avc: denied { mount } for pid=294 comm="syz-executor302" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 32.639838][ T297] general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN [ 32.657816][ T297] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 32.666070][ T297] CPU: 1 PID: 297 Comm: syz-executor302 Not tainted 5.10.233-syzkaller-00881-gfbe98d68b6b3 #0 [ 32.676128][ T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 32.686055][ T297] RIP: 0010:fuse_atomic_open+0x27f/0x34e0 [ 32.691590][ T297] Code: e0 40 4c 8b 64 24 20 75 07 e8 ed 56 6c ff eb 37 48 8b 44 24 60 48 8d 58 30 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 93 f5 a9 ff 48 83 3b 00 0f 84 a9 00 [ 32.711030][ T297] RSP: 0018:ffffc90000b27320 EFLAGS: 00010207 [ 32.716936][ T297] RAX: 0000000000000006 RBX: 0000000000000035 RCX: dffffc0000000000 [ 32.724755][ T297] RDX: ffff88811a9a13c0 RSI: 0000000000000040 RDI: 0000000000000000 [ 32.732568][ T297] RBP: ffffc90000b27950 R08: ffffffff81fe67a2 R09: ffffed10237fb0fc [ 32.740374][ T297] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88811bfd84a8 [ 32.748189][ T297] R13: ffff88810caf7000 R14: 1ffff92000164e7c R15: 0000000000000005 [ 32.756011][ T297] FS: 00007fd59de026c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 32.764796][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.771192][ T297] CR2: 0000556f500d0c98 CR3: 000000010eb7d000 CR4: 00000000003506a0 [ 32.779005][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.786818][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.794610][ T297] Call Trace: [ 32.797765][ T297] ? __die_body+0x62/0xb0 [ 32.801952][ T297] ? die_addr+0x9f/0xd0 [ 32.805927][ T297] ? exc_general_protection+0x3ff/0x490 [ 32.811318][ T297] ? asm_exc_general_protection+0x1e/0x30 [ 32.816861][ T297] ? fuse_atomic_open+0x252/0x34e0 [ 32.821818][ T297] ? fuse_atomic_open+0x27f/0x34e0 [ 32.826764][ T297] ? fuse_rename2+0x4aa0/0x4aa0 [ 32.831445][ T297] ? avc_alloc_node+0x7e/0x360 [ 32.836044][ T297] ? __kasan_check_write+0x14/0x20 [ 32.840999][ T297] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 32.846292][ T297] ? _raw_spin_lock+0x1b0/0x1b0 [ 32.850981][ T297] ? avc_xperms_populate+0x4c7/0x590 [ 32.856092][ T297] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 32.861752][ T297] ? avc_compute_av+0x4cc/0x690 [ 32.866425][ T297] ? avc_has_perm+0x275/0x400 [ 32.870945][ T297] ? avc_has_perm_noaudit+0x240/0x240 [ 32.876160][ T297] ? avc_has_perm_noaudit+0x158/0x240 [ 32.881352][ T297] ? security_transition_sid+0x7d/0x90 [ 32.886643][ T297] ? may_create+0x65a/0x900 [ 32.891125][ T297] ? show_sid+0x250/0x250 [ 32.895288][ T297] ? d_hash_and_lookup+0x1e0/0x1e0 [ 32.900271][ T297] ? from_kgid+0x1a3/0x730 [ 32.904497][ T297] ? selinux_inode_create+0x22/0x30 [ 32.909527][ T297] ? security_inode_create+0xbc/0x100 [ 32.914741][ T297] ? fuse_rename2+0x4aa0/0x4aa0 [ 32.919418][ T297] path_openat+0xff0/0x3000 [ 32.923794][ T297] ? do_filp_open+0x460/0x460 [ 32.928284][ T297] do_filp_open+0x21c/0x460 [ 32.932614][ T297] ? vfs_tmpfile+0x2b0/0x2b0 [ 32.937050][ T297] ? get_unused_fd_flags+0x94/0xa0 [ 32.942000][ T297] do_sys_openat2+0x13f/0x710 [ 32.946504][ T297] ? do_sys_open+0x220/0x220 [ 32.950940][ T297] ? ptrace_notify+0x24c/0x350 [ 32.955527][ T297] ? do_notify_parent+0xa10/0xa10 [ 32.960388][ T297] __x64_sys_creat+0x11f/0x160 [ 32.964993][ T297] ? __x32_compat_sys_openat+0x290/0x290 [ 32.970468][ T297] ? syscall_enter_from_user_mode+0x57/0x1a0 [ 32.976271][ T297] do_syscall_64+0x34/0x70 [ 32.980525][ T297] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 32.986247][ T297] RIP: 0033:0x7fd59de614b9 [ 32.990504][ T297] 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 [ 33.009948][ T297] RSP: 002b:00007fd59de02218 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 33.018196][ T297] RAX: ffffffffffffffda RBX: 00007fd59deee3f8 RCX: 00007fd59de614b9 [pid 295] futex(0x7fd59deee3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 294] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 33.026109][ T297] RDX: 00007fd59de614b9 RSI: 0000000000000000 RDI: 0000000020000180 [ 33.033913][ T297] RBP: 00007fd59deee3f0 R08: 0000000000000000 R09: 0000000000000000 [ 33.041737][ T297] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd59debb034 [ 33.049540][ T297] R13: 000000000000006e R14: 0030656c69662f30 R15: 2f30656c69662f2e [ 33.057346][ T297] Modules linked in: [ 33.062226][ T297] ---[ end trace acaf478e95ceabec ]--- [ 33.067964][ T297] RIP: 0010:fuse_atomic_open+0x27f/0x34e0 [ 33.073696][ T297] Code: e0 40 4c 8b 64 24 20 75 07 e8 ed 56 6c ff eb 37 48 8b 44 24 60 48 8d 58 30 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 93 f5 a9 ff 48 83 3b 00 0f 84 a9 00 [ 33.093224][ T297] RSP: 0018:ffffc90000b27320 EFLAGS: 00010207 [ 33.099088][ T297] RAX: 0000000000000006 RBX: 0000000000000035 RCX: dffffc0000000000 [ 33.106878][ T297] RDX: ffff88811a9a13c0 RSI: 0000000000000040 RDI: 0000000000000000 [ 33.114738][ T297] RBP: ffffc90000b27950 R08: ffffffff81fe67a2 R09: ffffed10237fb0fc [ 33.122523][ T297] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88811bfd84a8 [ 33.130379][ T297] R13: ffff88810caf7000 R14: 1ffff92000164e7c R15: 0000000000000005 [ 33.138152][ T297] FS: 00007fd59de026c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 33.146958][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.153440][ T297] CR2: 0000556f500c1ab8 CR3: 000000010eb7d000 CR4: 00000000003506b0 [ 33.161316][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.169093][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.176861][ T297] Kernel panic - not syncing: Fatal exception [ 33.182990][ T297] Kernel Offset: disabled [ 33.187143][ T297] Rebooting in 86400 seconds..