./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2037814823 <...> Warning: Permanently added '10.128.0.115' (ED25519) to the list of known hosts. execve("./syz-executor2037814823", ["./syz-executor2037814823"], 0x7ffd3a204090 /* 10 vars */) = 0 brk(NULL) = 0x5555930fb000 brk(0x5555930fbd40) = 0x5555930fbd40 arch_prctl(ARCH_SET_FS, 0x5555930fb3c0) = 0 set_tid_address(0x5555930fb690) = 290 set_robust_list(0x5555930fb6a0, 24) = 0 rseq(0x5555930fbce0, 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-executor2037814823", 4096) = 28 getrandom("\xd2\x43\x08\x41\xa8\x5c\x5c\x1a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555930fbd40 brk(0x55559311cd40) = 0x55559311cd40 brk(0x55559311d000) = 0x55559311d000 mprotect(0x7f7b29c55000, 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(0x7f7b29c5b3cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f7b29bf1670, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f7b29be2cf0}, 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) = 0x7f7b29b6a000 mprotect(0x7f7b29b6b000, 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=0x7f7b29b8a990, parent_tid=0x7f7b29b8a990, exit_signal=0, stack=0x7f7b29b6a000, stack_size=0x20300, tls=0x7f7b29b8a6c0} => {parent_tid=[291]}, 88) = 291 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 futex(0x7f7b29c5b3c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 futex(0x7f7b29c5b3cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 291 attached [pid 291] set_robust_list(0x7f7b29b8a9a0, 24) = 0 [pid 291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 291] openat(AT_FDCWD, "/dev/fuse", O_RDWR) = 3 [pid 291] futex(0x7f7b29c5b3cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 290] <... futex resumed>) = 0 [pid 290] futex(0x7f7b29c5b3c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] futex(0x7f7b29c5b3cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] <... futex resumed>) = 1 [pid 291] mkdir("./file0", 0777) = 0 [pid 291] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [ 23.743342][ T24] audit: type=1400 audit(1728797944.860:66): avc: denied { execmem } for pid=290 comm="syz-executor203" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 23.762706][ T24] audit: type=1400 audit(1728797944.870:67): avc: denied { read write } for pid=290 comm="syz-executor203" 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 [pid 291] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 290] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 290] futex(0x7f7b29c5b3dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f7b29b49000 [pid 290] mprotect(0x7f7b29b4a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 290] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 290] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f7b29b69990, parent_tid=0x7f7b29b69990, exit_signal=0, stack=0x7f7b29b49000, stack_size=0x20300, tls=0x7f7b29b696c0} => {parent_tid=[293]}, 88) = 293 [pid 290] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 290] futex(0x7f7b29c5b3d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] futex(0x7f7b29c5b3dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 293 attached [pid 293] set_robust_list(0x7f7b29b699a0, 24) = 0 [pid 293] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 293] 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", 8192) = 56 [pid 293] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x28\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 293] futex(0x7f7b29c5b3dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 290] <... futex resumed>) = 0 [pid 290] futex(0x7f7b29c5b3d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] futex(0x7f7b29c5b3dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 293] <... futex resumed>) = 1 [pid 293] read(3, "\x30\x00\x00\x00\x1b\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\x23\x01\x00\x00\x00\x00\x00\x00\x00\x80\x01\x00\x00\x00\x00\x00", 8192) = 48 [pid 293] write(3, "\x20\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", 32 [pid 291] <... openat resumed>) = 4 [pid 291] chdir("./file0" [pid 293] <... write resumed>) = 32 [pid 293] futex(0x7f7b29c5b3dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 290] <... futex resumed>) = 0 [pid 290] futex(0x7f7b29c5b3d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] futex(0x7f7b29c5b3dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 293] <... futex resumed>) = 1 [pid 293] read(3, "\x30\x00\x00\x00\x22\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x23\x01\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00", 8192) = 48 [pid 293] write(3, "\x10\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00", 16 [pid 291] <... chdir resumed>) = 0 [pid 291] futex(0x7f7b29c5b3cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 291] futex(0x7f7b29c5b3c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 293] <... write resumed>) = 16 [pid 293] futex(0x7f7b29c5b3dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 290] <... futex resumed>) = 0 [pid 290] futex(0x7f7b29c5b3c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 291] <... futex resumed>) = 0 [pid 290] futex(0x7f7b29c5b3cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] read(3, [pid 293] <... futex resumed>) = 1 [ 23.786043][ T24] audit: type=1400 audit(1728797944.870:68): avc: denied { open } for pid=290 comm="syz-executor203" 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 [ 23.809325][ T24] audit: type=1400 audit(1728797944.880:69): avc: denied { mounton } for pid=290 comm="syz-executor203" 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 293] futex(0x7f7b29c5b3d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 290] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 290] futex(0x7f7b29c5b3cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 290] futex(0x7f7b29c5b3d8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 290] futex(0x7f7b29c5b3dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 293] <... futex resumed>) = 0 [pid 293] newfstatat(AT_FDCWD, "./file1", [pid 291] <... read resumed>"\x2e\x00\x00\x00\x01\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x25\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x31\x00", 8192) = 46 [pid 291] write(3, "\xae\x00\x00\x00\x00\x00\x00\x00\x08\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\x01\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\x02\x00\x00\x00"..., 174) = 174 [pid 291] futex(0x7f7b29c5b3cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 23.831906][ T24] audit: type=1400 audit(1728797944.880:70): avc: denied { mount } for pid=290 comm="syz-executor203" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 23.871906][ T293] general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN [ 23.883517][ T293] KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [pid 291] futex(0x7f7b29c5b3c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 290] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 290] futex(0x7f7b29c5b3dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 290] futex(0x7f7b29c5b3dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [ 23.891760][ T293] CPU: 1 PID: 293 Comm: syz-executor203 Not tainted 5.10.226-syzkaller-00709-ge5e5644ea27f #0 [ 23.901821][ T293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 23.911736][ T293] RIP: 0010:step_into+0x1b9/0xec0 [ 23.916580][ T293] Code: 24 0f 85 cf 0a 00 00 44 8b 3a 43 80 3c 2c 00 74 0a 48 8b 7c 24 18 e8 76 95 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 c1 0a 00 00 8b 1b 89 de 81 e6 00 00 07 [ 23.936027][ T293] RSP: 0018:ffffc90000b376e0 EFLAGS: 00010207 [ 23.941925][ T293] RAX: 0000000000000003 RBX: 000000000000001e RCX: ffff8881215613c0 [ 23.949733][ T293] RDX: ffffc90000b37a38 RSI: 0000000000000000 RDI: 0000000000000000 [ 23.957556][ T293] RBP: ffffc90000b37810 R08: ffffffff81b4b10f R09: ffffed102395ced5 [ 23.965360][ T293] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000166ef3 [ 23.973168][ T293] R13: dffffc0000000000 R14: ffffc90000b37a00 R15: 0000000000000001 [ 23.980999][ T293] FS: 00007f7b29b696c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [pid 290] exit_group(0) = ? [pid 291] <... futex resumed>) = ? [pid 291] +++ exited with 0 +++ [ 23.989750][ T293] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.996166][ T293] CR2: 0000000000505710 CR3: 00000001208f7000 CR4: 00000000003506a0 [ 24.003980][ T293] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.011790][ T293] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.019599][ T293] Call Trace: [ 24.022732][ T293] ? __die_body+0x62/0xb0 [ 24.026899][ T293] ? die_addr+0x9f/0xd0 [ 24.030890][ T293] ? exc_general_protection+0x3ff/0x490 [ 24.036274][ T293] ? asm_exc_general_protection+0x1e/0x30 [ 24.041829][ T293] ? step_into+0x15f/0xec0 [ 24.046072][ T293] ? step_into+0x1b9/0xec0 [ 24.050330][ T293] ? set_root+0x3d0/0x3d0 [ 24.054502][ T293] ? __kasan_check_write+0x14/0x20 [ 24.059442][ T293] ? up_read+0x14/0x90 [ 24.063344][ T293] walk_component+0x359/0x610 [ 24.067860][ T293] ? nd_alloc_stack+0xf0/0xf0 [ 24.072459][ T293] ? handle_lookup_down+0x130/0x130 [ 24.077500][ T293] path_lookupat+0x16d/0x450 [ 24.081921][ T293] filename_lookup+0x26a/0x6f0 [ 24.086518][ T293] ? hashlen_string+0x120/0x120 [ 24.091206][ T293] ? getname_flags+0x1fd/0x520 [ 24.095807][ T293] user_path_at_empty+0x40/0x50 [ 24.100497][ T293] vfs_statx+0x106/0x3b0 [ 24.104574][ T293] ? switch_mm_irqs_off+0x71b/0x9a0 [ 24.109603][ T293] ? __switch_to_asm+0x34/0x60 [ 24.114208][ T293] ? __schedule+0xbee/0x1330 [ 24.118632][ T293] ? vfs_fstatat+0x40/0x40 [ 24.122885][ T293] __se_sys_newfstatat+0xc8/0x760 [ 24.127747][ T293] ? __x64_sys_newfstatat+0xb0/0xb0 [ 24.132781][ T293] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.137815][ T293] ? cgroup_leave_frozen+0x164/0x2c0 [ 24.142934][ T293] ? ptrace_stop+0x6dc/0xa30 [ 24.147365][ T293] ? fpu__clear_all+0x20/0x20 [ 24.151876][ T293] __x64_sys_newfstatat+0x9b/0xb0 [ 24.156734][ T293] do_syscall_64+0x34/0x70 [ 24.160991][ T293] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.166713][ T293] RIP: 0033:0x7f7b29bcb799 [ 24.170966][ T293] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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 [ 24.190407][ T293] RSP: 002b:00007f7b29b69218 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 24.198653][ T293] RAX: ffffffffffffffda RBX: 00007f7b29c5b3d8 RCX: 00007f7b29bcb799 [ 24.206463][ T293] RDX: 0000000000000000 RSI: 00000000200006c0 RDI: ffffffffffffff9c [ 24.214274][ T293] RBP: 00007f7b29c5b3d0 R08: 0000000000000000 R09: 0000000000000000 [ 24.222085][ T293] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7b29c28104 [ 24.229898][ T293] R13: 000000000000006e R14: 00007f7b29c26100 R15: 0031656c69662f2e [ 24.237711][ T293] Modules linked in: [ 24.241588][ T293] ---[ end trace e9354e6195d95291 ]--- [ 24.246873][ T293] RIP: 0010:step_into+0x1b9/0xec0 [ 24.251751][ T293] Code: 24 0f 85 cf 0a 00 00 44 8b 3a 43 80 3c 2c 00 74 0a 48 8b 7c 24 18 e8 76 95 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 c1 0a 00 00 8b 1b 89 de 81 e6 00 00 07 [ 24.271172][ T293] RSP: 0018:ffffc90000b376e0 EFLAGS: 00010207 [ 24.277052][ T293] RAX: 0000000000000003 RBX: 000000000000001e RCX: ffff8881215613c0 [ 24.284888][ T293] RDX: ffffc90000b37a38 RSI: 0000000000000000 RDI: 0000000000000000 [ 24.292780][ T293] RBP: ffffc90000b37810 R08: ffffffff81b4b10f R09: ffffed102395ced5 [ 24.300606][ T293] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000166ef3 [ 24.308400][ T293] R13: dffffc0000000000 R14: ffffc90000b37a00 R15: 0000000000000001 [ 24.316195][ T293] FS: 00007f7b29b696c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 24.324983][ T293] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.331399][ T293] CR2: 0000000000505710 CR3: 00000001208f7000 CR4: 00000000003506a0 [ 24.339220][ T293] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.347006][ T293] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.355023][ T293] Kernel panic - not syncing: Fatal exception [ 24.361171][ T293] Kernel Offset: disabled [ 24.365298][ T293] Rebooting in 86400 seconds..