./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3746406885 <...> Warning: Permanently added '10.128.1.28' (ED25519) to the list of known hosts. execve("./syz-executor3746406885", ["./syz-executor3746406885"], 0x7ffd9f77c760 /* 10 vars */) = 0 brk(NULL) = 0x5555561d3000 brk(0x5555561d3d40) = 0x5555561d3d40 arch_prctl(ARCH_SET_FS, 0x5555561d33c0) = 0 set_tid_address(0x5555561d3690) = 295 set_robust_list(0x5555561d36a0, 24) = 0 rseq(0x5555561d3ce0, 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-executor3746406885", 4096) = 28 getrandom("\xd3\xac\xbd\xf8\x08\x2c\x2e\xa1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555561d3d40 brk(0x5555561f4d40) = 0x5555561f4d40 brk(0x5555561f5000) = 0x5555561f5000 mprotect(0x7fceae90c000, 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(0x7fceae91240c, FUTEX_WAKE_PRIVATE, 1000000) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7fceae8ac380, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fceae89da00}, 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) = 0x7fceae825000 mprotect(0x7fceae826000, 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=0x7fceae845990, parent_tid=0x7fceae845990, exit_signal=0, stack=0x7fceae825000, stack_size=0x20300, tls=0x7fceae8456c0} => {parent_tid=[296]}, 88) = 296 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 futex(0x7fceae912408, FUTEX_WAKE_PRIVATE, 1000000) = 0 futex(0x7fceae91240c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x7fceae8459a0, 24) = 0 [pid 296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 296] openat(AT_FDCWD, "/dev/fuse", O_RDWR) = 3 [pid 296] futex(0x7fceae91240c, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7fceae912408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fceae91240c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... futex resumed>) = 1 [pid 296] mkdir("./file0", 0777) = 0 [pid 296] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [ 22.891129][ T28] audit: type=1400 audit(1707630529.525:66): avc: denied { execmem } for pid=295 comm="syz-executor374" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.896784][ T28] audit: type=1400 audit(1707630529.535:67): avc: denied { read write } for pid=295 comm="syz-executor374" 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 [ 22.902267][ T28] audit: type=1400 audit(1707630529.535:68): avc: denied { open } for pid=295 comm="syz-executor374" 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 [ 22.908044][ T28] audit: type=1400 audit(1707630529.535:69): avc: denied { mounton } for pid=295 comm="syz-executor374" 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] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 295] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 295] futex(0x7fceae91240c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 295] futex(0x7fceae91240c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 295] futex(0x7fceae91241c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fceae804000 [pid 295] mprotect(0x7fceae805000, 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=0x7fceae824990, parent_tid=0x7fceae824990, exit_signal=0, stack=0x7fceae804000, stack_size=0x20300, tls=0x7fceae8246c0} => {parent_tid=[298]}, 88) = 298 [pid 295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 295] futex(0x7fceae912418, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fceae91241c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x7fceae8249a0, 24) = 0 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] 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 298] futex(0x7fceae91241c, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7fceae912418, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fceae91241c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 298] <... futex resumed>) = 1 [pid 298] 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 298] futex(0x7fceae91241c, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7fceae912418, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7fceae91241c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 298] <... futex resumed>) = 1 [pid 298] 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\x28\x01\x00\x00\x00\x00\x00\x00\x00\x80\x01\x00\x00\x00\x00\x00", 8192) = 48 [pid 298] 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 296] <... openat resumed>) = 4 [pid 296] futex(0x7fceae91240c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7fceae912408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 298] <... write resumed>) = 32 [pid 298] futex(0x7fceae91241c, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7fceae912408, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 296] <... futex resumed>) = 0 [pid 295] futex(0x7fceae91240c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] read(3, [pid 298] <... futex resumed>) = 1 [ 22.934265][ T28] audit: type=1400 audit(1707630529.545:70): avc: denied { mount } for pid=295 comm="syz-executor374" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [pid 298] futex(0x7fceae912418, FUTEX_WAIT_PRIVATE, 0, NULL [pid 295] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 295] futex(0x7fceae912418, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 298] <... futex resumed>) = 0 [pid 295] futex(0x7fceae91241c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 23.005884][ T298] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 23.017630][ T298] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 23.025959][ T298] CPU: 0 PID: 298 Comm: syz-executor374 Not tainted 6.1.68-syzkaller-00008-gd3f73f04529a #0 [ 23.036549][ T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 23.046535][ T298] RIP: 0010:filename_create+0x2d2/0x520 [pid 298] mkdirat(4, "./file0", 0400 [pid 296] <... read resumed>"\x2e\x00\x00\x00\x01\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\x2a\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [ 23.051912][ T298] Code: 92 00 00 00 4c 89 7c 24 28 45 84 e4 0f 95 c0 83 7c 24 14 00 0f 94 c3 20 c3 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 1f 02 00 00 45 8b 26 41 bd 00 00 70 00 be [ 23.071649][ T298] RSP: 0018:ffffc90000e67d20 EFLAGS: 00010202 [ 23.077645][ T298] RAX: 0000000000000001 RBX: 1ffff920001ccf00 RCX: dffffc0000000000 [ 23.085465][ T298] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 23.093274][ T298] RBP: ffffc90000e67e10 R08: ffffffff81caef3b R09: fffff520001ccf83 [pid 296] write(3, "\x90\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\xc7\x88\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x03\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\xff\xff\xff\x7f\x06\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00"..., 144) = 144 [pid 296] futex(0x7fceae91240c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 23.101160][ T298] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 23.109078][ T298] R13: 0000000000000600 R14: 0000000000000008 R15: ffffc90000e67e80 [ 23.116984][ T298] FS: 00007fceae8246c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.125833][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.132254][ T298] CR2: 0000000020007000 CR3: 0000000120dc7000 CR4: 00000000003506b0 [ 23.140157][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.148310][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.156386][ T298] Call Trace: [ 23.159597][ T298] [ 23.162372][ T298] ? __die_body+0x62/0xb0 [ 23.166550][ T298] ? die_addr+0x9f/0xd0 [ 23.174188][ T298] ? exc_general_protection+0x317/0x4c0 [ 23.180448][ T298] ? asm_exc_general_protection+0x27/0x30 [ 23.186606][ T298] ? dput+0x8b/0x310 [ 23.190416][ T298] ? filename_create+0x2d2/0x520 [ 23.195399][ T298] ? kern_path_create+0x1a0/0x1a0 [ 23.200451][ T298] do_mkdirat+0xbd/0x450 [ 23.204538][ T298] ? vfs_mkdir+0x570/0x570 [ 23.208892][ T298] __x64_sys_mkdirat+0x89/0xa0 [ 23.213516][ T298] do_syscall_64+0x3d/0xb0 [ 23.217818][ T298] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 23.223676][ T298] RIP: 0033:0x7fceae8864a9 [ 23.228252][ T298] 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 [ 23.248055][ T298] RSP: 002b:00007fceae824218 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 [pid 296] futex(0x7fceae912408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 295] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 23.256463][ T298] RAX: ffffffffffffffda RBX: 00007fceae912418 RCX: 00007fceae8864a9 [ 23.264297][ T298] RDX: 0000000000000100 RSI: 0000000020000000 RDI: 0000000000000004 [ 23.272540][ T298] RBP: 00007fceae912410 R08: 0000000000000000 R09: 0000000000000000 [ 23.280953][ T298] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fceae8df0dc [ 23.288761][ T298] R13: 000000000000006e R14: 0030656c69662f2e R15: 7fffffffffffffff [ 23.296574][ T298] [ 23.299606][ T298] Modules linked in: [ 23.304608][ T298] ---[ end trace 0000000000000000 ]--- [ 23.310269][ T298] RIP: 0010:filename_create+0x2d2/0x520 [ 23.315613][ T298] Code: 92 00 00 00 4c 89 7c 24 28 45 84 e4 0f 95 c0 83 7c 24 14 00 0f 94 c3 20 c3 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 1f 02 00 00 45 8b 26 41 bd 00 00 70 00 be [ 23.335551][ T298] RSP: 0018:ffffc90000e67d20 EFLAGS: 00010202 [ 23.341919][ T298] RAX: 0000000000000001 RBX: 1ffff920001ccf00 RCX: dffffc0000000000 [ 23.349883][ T298] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 23.357882][ T298] RBP: ffffc90000e67e10 R08: ffffffff81caef3b R09: fffff520001ccf83 [ 23.365750][ T298] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 23.373581][ T298] R13: 0000000000000600 R14: 0000000000000008 R15: ffffc90000e67e80 [ 23.381465][ T298] FS: 00007fceae8246c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.390283][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.396749][ T298] CR2: 0000000020007000 CR3: 0000000120dc7000 CR4: 00000000003506b0 [pid 295] exit_group(0) = ? [pid 296] <... futex resumed>) = ? [pid 296] +++ exited with 0 +++ [ 23.404552][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.412540][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.420474][ T298] Kernel panic - not syncing: Fatal exception [ 23.426591][ T298] Kernel Offset: disabled [ 23.430828][ T298] Rebooting in 86400 seconds..