./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1558211095 <...> Warning: Permanently added '10.128.1.73' (ED25519) to the list of known hosts. execve("./syz-executor1558211095", ["./syz-executor1558211095"], 0x7ffe23fb6f00 /* 10 vars */) = 0 brk(NULL) = 0x5555562c8000 brk(0x5555562c8d40) = 0x5555562c8d40 arch_prctl(ARCH_SET_FS, 0x5555562c83c0) = 0 set_tid_address(0x5555562c8690) = 298 set_robust_list(0x5555562c86a0, 24) = 0 rseq(0x5555562c8ce0, 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-executor1558211095", 4096) = 28 getrandom("\x41\xfd\x09\xa6\xdd\x87\xb3\xfc", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555562c8d40 brk(0x5555562e9d40) = 0x5555562e9d40 brk(0x5555562ea000) = 0x5555562ea000 mprotect(0x7fa32686f000, 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, 0executing program ) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 write(1, "executing program\n", 18) = 18 futex(0x7fa3268753ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7fa32680c520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fa3267fdba0}, 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) = 0x7fa326788000 mprotect(0x7fa326789000, 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=0x7fa3267a8990, parent_tid=0x7fa3267a8990, exit_signal=0, stack=0x7fa326788000, stack_size=0x20300, tls=0x7fa3267a86c0} => {parent_tid=[299]}, 88) = 299 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 futex(0x7fa3268753e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 futex(0x7fa3268753ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 299 attached [pid 299] set_robust_list(0x7fa3267a89a0, 24) = 0 [pid 299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 299] mkdirat(AT_FDCWD, "./file0", 000) = 0 [pid 299] futex(0x7fa3268753ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fa3268753e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fa3268753ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] <... futex resumed>) = 1 [pid 299] openat(AT_FDCWD, "/dev/fuse", O_RDWR) = 3 [pid 299] futex(0x7fa3268753ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fa3268753e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fa3268753ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] <... futex resumed>) = 1 [pid 299] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [pid 299] futex(0x7fa3268753ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fa3268753e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fa3268753ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] <... futex resumed>) = 1 [pid 299] 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"..., 8192) = 104 [pid 299] 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 299] futex(0x7fa3268753ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fa3268753e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fa3268753ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] <... futex resumed>) = 1 [ 26.392798][ T28] audit: type=1400 audit(1720971082.341:66): avc: denied { execmem } for pid=298 comm="syz-executor155" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 26.412078][ T28] audit: type=1400 audit(1720971082.351:67): avc: denied { read write } for pid=298 comm="syz-executor155" 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 299] read(3, [pid 298] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 298] futex(0x7fa3268753fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa326767000 [pid 298] mprotect(0x7fa326768000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fa326787990, parent_tid=0x7fa326787990, exit_signal=0, stack=0x7fa326767000, stack_size=0x20300, tls=0x7fa3267876c0} => {parent_tid=[302]}, 88) = 302 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] futex(0x7fa3268753f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fa3268753fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 302 attached [pid 302] set_robust_list(0x7fa3267879a0, 24) = 0 [pid 302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 302] openat(AT_FDCWD, "./file0", O_RDONLY [pid 299] <... read resumed>"\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\x2e\x01\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00", 8192) = 48 [pid 299] 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) = 32 [pid 299] futex(0x7fa3268753ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 299] futex(0x7fa3268753e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 302] <... openat resumed>) = 4 [pid 302] futex(0x7fa3268753fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fa3268753e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 299] <... futex resumed>) = 0 [pid 298] futex(0x7fa3268753ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] renameat2(4, "./file1", 4, "./file0", 0 [pid 302] <... futex resumed>) = 1 [ 26.435393][ T28] audit: type=1400 audit(1720971082.351:68): avc: denied { open } for pid=298 comm="syz-executor155" 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 [ 26.458567][ T28] audit: type=1400 audit(1720971082.351:69): avc: denied { mounton } for pid=298 comm="syz-executor155" 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 302] futex(0x7fa3268753f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 298] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 298] futex(0x7fa3268753f8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 298] futex(0x7fa3268753fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... futex resumed>) = 0 [pid 302] read(3, "\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\x2b\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x31\x00", 8224) = 46 [pid 302] futex(0x7fa3268753fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 302] <... futex resumed>) = 1 [pid 298] futex(0x7fa3268753f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] futex(0x7fa3268753f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 298] <... futex resumed>) = 0 [pid 302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 298] futex(0x7fa3268753fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] write(3, "\xa0\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 302] futex(0x7fa3268753fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 302] <... futex resumed>) = 1 [ 26.481482][ T28] audit: type=1400 audit(1720971082.351:70): avc: denied { mount } for pid=298 comm="syz-executor155" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 26.515019][ T299] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 26.526568][ T299] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 26.534814][ T299] CPU: 0 PID: 299 Comm: syz-executor155 Not tainted 6.1.84-syzkaller-00005-g96d66062d076 #0 [ 26.544702][ T299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 26.554598][ T299] RIP: 0010:do_renameat2+0x6fd/0x1480 [ 26.559804][ T299] Code: f2 e8 77 f0 fe ff 48 89 c3 48 3d 01 f0 ff ff 72 12 e8 57 08 ac ff 41 89 de 48 8b 5c 24 18 e9 6f 05 00 00 49 89 de 49 c1 ee 03 <43> 0f b6 04 26 84 c0 0f 85 8a 07 00 00 48 89 5c 24 40 8b 1b be 00 [ 26.579246][ T299] RSP: 0018:ffffc90000e87c00 EFLAGS: 00010202 [ 26.585146][ T299] RAX: 0000000000000010 RBX: 0000000000000010 RCX: ffff8881095a8000 [ 26.592966][ T299] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000 [ 26.600771][ T299] RBP: ffffc90000e87ee0 R08: ffffffff81cbb018 R09: fffff520001d0f59 [ 26.608587][ T299] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 26.616396][ T299] R13: ffffc90000e87de8 R14: 0000000000000002 R15: ffff88811fd6a360 [ 26.624206][ T299] FS: 00007fa3267a86c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 26.632972][ T299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.639394][ T299] CR2: 00007ffeccd7e020 CR3: 00000001233b0000 CR4: 00000000003506b0 [ 26.647207][ T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.655017][ T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.662828][ T299] Call Trace: [ 26.665955][ T299] [ 26.668734][ T299] ? __die_body+0x62/0xb0 [ 26.672897][ T299] ? die_addr+0x9f/0xd0 [ 26.676888][ T299] ? exc_general_protection+0x317/0x4c0 [ 26.682274][ T299] ? asm_exc_general_protection+0x27/0x30 [ 26.687913][ T299] ? fast_dput+0x78/0x2a0 [ 26.692166][ T299] ? do_renameat2+0x6fd/0x1480 [ 26.696774][ T299] ? fsnotify_move+0x4e0/0x4e0 [ 26.701370][ T299] ? strncpy_from_user+0x169/0x2b0 [ 26.706310][ T299] ? getname_flags+0x1fd/0x520 [ 26.710911][ T299] __x64_sys_renameat2+0xdd/0xf0 [ 26.715687][ T299] do_syscall_64+0x3d/0xb0 [ 26.719936][ T299] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 26.725667][ T299] RIP: 0033:0x7fa3267e6679 [ 26.730008][ T299] 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 [ 26.749447][ T299] RSP: 002b:00007fa3267a8218 EFLAGS: 00000246 ORIG_RAX: 000000000000013c [ 26.757691][ T299] RAX: ffffffffffffffda RBX: 00007fa3268753e8 RCX: 00007fa3267e6679 [ 26.765505][ T299] RDX: 0000000000000004 RSI: 0000000020000500 RDI: 0000000000000004 [ 26.773313][ T299] RBP: 00007fa3268753e0 R08: 0000000000000000 R09: 0000000000000000 [ 26.781210][ T299] R10: 00000000200001c0 R11: 0000000000000246 R12: 00007fa32684209c [ 26.789199][ T299] R13: 0030656c69662f2e R14: 00007fa3268420ca R15: 0031656c69662f2e [ 26.797013][ T299] [ 26.799881][ T299] Modules linked in: [ 26.803708][ T299] ---[ end trace 0000000000000000 ]--- [ 26.808956][ T299] RIP: 0010:do_renameat2+0x6fd/0x1480 [ 26.814143][ T299] Code: f2 e8 77 f0 fe ff 48 89 c3 48 3d 01 f0 ff ff 72 12 e8 57 08 ac ff 41 89 de 48 8b 5c 24 18 e9 6f 05 00 00 49 89 de 49 c1 ee 03 <43> 0f b6 04 26 84 c0 0f 85 8a 07 00 00 48 89 5c 24 40 8b 1b be 00 [ 26.833637][ T299] RSP: 0018:ffffc90000e87c00 EFLAGS: 00010202 [ 26.839613][ T299] RAX: 0000000000000010 RBX: 0000000000000010 RCX: ffff8881095a8000 [ 26.847384][ T299] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000 [ 26.855344][ T299] RBP: ffffc90000e87ee0 R08: ffffffff81cbb018 R09: fffff520001d0f59 [ 26.863139][ T299] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 26.870990][ T299] R13: ffffc90000e87de8 R14: 0000000000000002 R15: ffff88811fd6a360 [ 26.878759][ T299] FS: 00007fa3267a86c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 26.887506][ T299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.894028][ T299] CR2: 00007ffeccd7e020 CR3: 00000001233b0000 CR4: 00000000003506b0 [ 26.901835][ T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.909648][ T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.917442][ T299] Kernel panic - not syncing: Fatal exception [ 26.923664][ T299] Kernel Offset: disabled [ 26.927794][ T299] Rebooting in 86400 seconds..