./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor593881582 <...> Warning: Permanently added '10.128.0.229' (ED25519) to the list of known hosts. execve("./syz-executor593881582", ["./syz-executor593881582"], 0x7ffef4c4e540 /* 10 vars */) = 0 brk(NULL) = 0x5555555f5000 brk(0x5555555f5d40) = 0x5555555f5d40 arch_prctl(ARCH_SET_FS, 0x5555555f53c0) = 0 set_tid_address(0x5555555f5690) = 294 set_robust_list(0x5555555f56a0, 24) = 0 rseq(0x5555555f5ce0, 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-executor593881582", 4096) = 27 getrandom("\x10\xd0\x4a\x30\xd3\x4a\xbc\x5c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555555f5d40 brk(0x555555616d40) = 0x555555616d40 brk(0x555555617000) = 0x555555617000 mprotect(0x7f599ea24000, 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(0x7f599ea2a3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f599e9c1520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f599e9b2ba0}, 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) = 0x7f599e93d000 mprotect(0x7f599e93e000, 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=0x7f599e95d990, parent_tid=0x7f599e95d990, exit_signal=0, stack=0x7f599e93d000, stack_size=0x20300, tls=0x7f599e95d6c0} => {parent_tid=[295]}, 88) = 295 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 futex(0x7f599ea2a3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 futex(0x7f599ea2a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 295 attached [pid 295] set_robust_list(0x7f599e95d9a0, 24) = 0 [pid 295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 295] mkdirat(AT_FDCWD, "./file0", 000) = 0 [pid 295] futex(0x7f599ea2a3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 295] <... futex resumed>) = 1 [pid 294] futex(0x7f599ea2a3e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] openat(AT_FDCWD, "/dev/fuse", O_RDWR [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7f599ea2a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] <... openat resumed>) = 3 [pid 295] futex(0x7f599ea2a3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7f599ea2a3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7f599ea2a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] <... futex resumed>) = 1 [pid 295] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [pid 295] futex(0x7f599ea2a3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7f599ea2a3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7f599ea2a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] <... futex resumed>) = 1 [pid 295] 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\x24\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 295] 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 295] futex(0x7f599ea2a3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7f599ea2a3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7f599ea2a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] <... futex resumed>) = 1 [ 22.552840][ T30] audit: type=1400 audit(1720818470.981:66): avc: denied { execmem } for pid=294 comm="syz-executor593" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.576014][ T30] audit: type=1400 audit(1720818471.001:67): avc: denied { read write } for pid=294 comm="syz-executor593" name="fuse" dev="devtmpfs" ino=91 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [pid 295] read(3, [pid 294] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 294] futex(0x7f599ea2a3fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f599e91c000 [pid 294] mprotect(0x7f599e91d000, 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=0x7f599e93c990, parent_tid=0x7f599e93c990, exit_signal=0, stack=0x7f599e91c000, stack_size=0x20300, tls=0x7f599e93c6c0} => {parent_tid=[297]}, 88) = 297 [pid 294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 294] futex(0x7f599ea2a3f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7f599ea2a3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x7f599e93c9a0, 24) = 0 [pid 297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 297] openat(AT_FDCWD, "./file0", O_RDONLY [pid 295] <... 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\x29\x01\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00", 8192) = 48 [pid 295] 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 295] futex(0x7f599ea2a3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f599ea2a3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 297] <... openat resumed>) = 4 [pid 297] futex(0x7f599ea2a3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7f599ea2a3e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 295] <... futex resumed>) = 0 [pid 294] futex(0x7f599ea2a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] renameat2(4, "./file1", 4, "./file0", RENAME_NOREPLACE|RENAME_WHITEOUT [pid 297] <... futex resumed>) = 1 [ 22.599908][ T30] audit: type=1400 audit(1720818471.001:68): avc: denied { open } for pid=294 comm="syz-executor593" path="/dev/fuse" dev="devtmpfs" ino=91 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 22.623110][ T30] audit: type=1400 audit(1720818471.001:69): avc: denied { mounton } for pid=294 comm="syz-executor593" 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 297] futex(0x7f599ea2a3f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 294] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 294] futex(0x7f599ea2a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 294] futex(0x7f599ea2a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 294] futex(0x7f599ea2a3f8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 294] futex(0x7f599ea2a3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 0 [pid 297] 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\x27\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x31\x00", 8224) = 46 [pid 297] futex(0x7f599ea2a3fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 297] <... futex resumed>) = 1 [pid 294] futex(0x7f599ea2a3f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 297] write(3, "\xa0\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\xfc\xff\xff\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 297] futex(0x7f599ea2a3fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 297] futex(0x7f599ea2a3f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 294] <... futex resumed>) = 1 [pid 294] futex(0x7f599ea2a3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 297] <... futex resumed>) = 0 [ 22.645841][ T30] audit: type=1400 audit(1720818471.001:70): avc: denied { mount } for pid=294 comm="syz-executor593" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 22.692009][ T295] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 22.703594][ T295] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 22.711891][ T295] CPU: 0 PID: 295 Comm: syz-executor593 Not tainted 5.15.151-syzkaller-00415-gdb06c48ab67e #0 [ 22.721959][ T295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 22.731861][ T295] RIP: 0010:do_renameat2+0x6fd/0x1480 [ 22.737059][ T295] Code: f2 e8 67 f0 fe ff 48 89 c3 48 3d 01 f0 ff ff 72 12 e8 17 de b1 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 [ 22.756501][ T295] RSP: 0018:ffffc90000a17c00 EFLAGS: 00010202 [ 22.762404][ T295] RAX: 0000000000000010 RBX: 0000000000000010 RCX: ffff88811993e2c0 [ 22.770212][ T295] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000 [ 22.778025][ T295] RBP: ffffc90000a17ee0 R08: ffffffff81c09428 R09: ffffed10238a3fa4 [ 22.785835][ T295] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 22.793648][ T295] R13: ffffc90000a17de8 R14: 0000000000000002 R15: ffff88811c51fcf0 [ 22.801458][ T295] FS: 00007f599e95d6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.810228][ T295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.816646][ T295] CR2: 0000000000f77258 CR3: 00000001207f3000 CR4: 00000000003506b0 [ 22.824462][ T295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.832272][ T295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.840081][ T295] Call Trace: [ 22.843205][ T295] [ 22.845985][ T295] ? __die_body+0x62/0xb0 [ 22.850149][ T295] ? die_addr+0x9f/0xd0 [ 22.854143][ T295] ? exc_general_protection+0x311/0x4b0 [ 22.859526][ T295] ? __kasan_check_write+0x14/0x20 [ 22.864472][ T295] ? asm_exc_general_protection+0x27/0x30 [ 22.870025][ T295] ? fast_dput+0x78/0x2a0 [ 22.874192][ T295] ? do_renameat2+0x6fd/0x1480 [ 22.878797][ T295] ? fsnotify_move+0x460/0x460 [ 22.883392][ T295] ? __check_object_size+0x2ec/0x3d0 [ 22.888511][ T295] ? strncpy_from_user+0x18e/0x2d0 [ 22.893461][ T295] ? getname_flags+0x1fd/0x520 [ 22.898060][ T295] __x64_sys_renameat2+0xdd/0xf0 [ 22.902833][ T295] do_syscall_64+0x3d/0xb0 [ 22.907087][ T295] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 22.912816][ T295] RIP: 0033:0x7f599e99b679 [ 22.917069][ T295] 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 [ 22.936508][ T295] RSP: 002b:00007f599e95d218 EFLAGS: 00000246 ORIG_RAX: 000000000000013c [ 22.944753][ T295] RAX: ffffffffffffffda RBX: 00007f599ea2a3e8 RCX: 00007f599e99b679 [ 22.952565][ T295] RDX: 0000000000000004 RSI: 0000000020000500 RDI: 0000000000000004 [ 22.960373][ T295] RBP: 00007f599ea2a3e0 R08: 0000000000000005 R09: 0000000000000000 [ 22.968188][ T295] R10: 00000000200001c0 R11: 0000000000000246 R12: 00007f599e9f709c [ 22.975997][ T295] R13: 0030656c69662f2e R14: 00007f599e9f70ca R15: 0000002000000000 [ 22.983811][ T295] [ 22.986675][ T295] Modules linked in: [ 22.991793][ T295] ---[ end trace d45018c389082862 ]--- [ 22.997112][ T295] RIP: 0010:do_renameat2+0x6fd/0x1480 [ 23.002314][ T295] Code: f2 e8 67 f0 fe ff 48 89 c3 48 3d 01 f0 ff ff 72 12 e8 17 de b1 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 [ 23.021748][ T295] RSP: 0018:ffffc90000a17c00 EFLAGS: 00010202 [ 23.027617][ T295] RAX: 0000000000000010 RBX: 0000000000000010 RCX: ffff88811993e2c0 [ 23.035452][ T295] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000 [ 23.043252][ T295] RBP: ffffc90000a17ee0 R08: ffffffff81c09428 R09: ffffed10238a3fa4 [ 23.051100][ T295] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 23.058878][ T295] R13: ffffc90000a17de8 R14: 0000000000000002 R15: ffff88811c51fcf0 [ 23.066673][ T295] FS: 00007f599e95d6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.075467][ T295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.081874][ T295] CR2: 00007f599e93cd58 CR3: 00000001207f3000 CR4: 00000000003506a0 [ 23.089730][ T295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.097578][ T295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.105418][ T295] Kernel panic - not syncing: Fatal exception [ 23.111543][ T295] Kernel Offset: disabled [ 23.115689][ T295] Rebooting in 86400 seconds..