./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor719407510 <...> Warning: Permanently added '10.128.0.86' (ED25519) to the list of known hosts. execve("./syz-executor719407510", ["./syz-executor719407510"], 0x7ffd82133080 /* 10 vars */) = 0 brk(NULL) = 0x55558dd2f000 brk(0x55558dd2fe00) = 0x55558dd2fe00 arch_prctl(ARCH_SET_FS, 0x55558dd2f480) = 0 set_tid_address(0x55558dd2f750) = 296 set_robust_list(0x55558dd2f760, 24) = 0 rseq(0x55558dd2fda0, 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-executor719407510", 4096) = 27 getrandom("\x4c\x3e\xb1\x34\x14\x50\xaf\x8f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558dd2fe00 brk(0x55558dd50e00) = 0x55558dd50e00 brk(0x55558dd51000) = 0x55558dd51000 mprotect(0x7f6d73594000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f6d734d8b40, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f6d734e1b50}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f6d734d8b40, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f6d734e1b50}, NULL, 8) = 0 write(1, "executing program\n", 18executing program ) = 18 futex(0x7f6d7359a3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f6d73536ba0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6d734e1b50}, 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) = 0x7f6d734ae000 mprotect(0x7f6d734af000, 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=0x7f6d734ce990, parent_tid=0x7f6d734ce990, exit_signal=0, stack=0x7f6d734ae000, stack_size=0x20240, tls=0x7f6d734ce6c0} => {parent_tid=[297]}, 88) = 297 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 futex(0x7f6d7359a3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 futex(0x7f6d7359a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x7f6d734ce9a0, 24) = 0 [pid 297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 297] mkdir("./file0", 0777) = 0 [pid 297] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 297] futex(0x7f6d7359a3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... futex resumed>) = 0 [pid 296] futex(0x7f6d7359a3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7f6d7359a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [pid 297] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3 [pid 297] futex(0x7f6d7359a3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... futex resumed>) = 0 [pid 296] futex(0x7f6d7359a3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7f6d7359a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [pid 297] mount(NULL, "./file0", "fuse", 0, "fd=00000000000000000000003,rootmode=0000000000000000040000,user_id=00000000000000000000,group_id=000"...) = 0 [pid 297] futex(0x7f6d7359a3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... futex resumed>) = 0 [pid 296] futex(0x7f6d7359a3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7f6d7359a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [pid 297] 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\x26\x00\x00\x00\x00\x00\x02\x00\xfb\xff\xff\x73\x09\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 297] futex(0x7f6d7359a3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... futex resumed>) = 0 [pid 296] futex(0x7f6d7359a3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7f6d7359a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [pid 297] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x29\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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(0x7f6d7359a3ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... futex resumed>) = 0 [pid 296] futex(0x7f6d7359a3e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7f6d7359a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [ 23.204075][ T28] audit: type=1400 audit(1734802795.681:66): avc: denied { execmem } for pid=296 comm="syz-executor719" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 23.223399][ T28] audit: type=1400 audit(1734802795.681:67): avc: denied { read write } for pid=296 comm="syz-executor719" 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 297] read(3, [pid 296] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 296] futex(0x7f6d7359a3ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 296] futex(0x7f6d7359a3fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6d7348d000 [pid 296] mprotect(0x7f6d7348e000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 296] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 296] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6d734ad990, parent_tid=0x7f6d734ad990, exit_signal=0, stack=0x7f6d7348d000, stack_size=0x20240, tls=0x7f6d734ad6c0} => {parent_tid=[299]}, 88) = 299 [pid 296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 296] futex(0x7f6d7359a3f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7f6d7359a3fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 299 attached [pid 299] set_robust_list(0x7f6d734ad9a0, 24) = 0 [pid 299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 299] rmdir("./file0/../file0/file0" [pid 297] <... 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\x2b\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [pid 297] write(3, "\x96\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfe\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\x00\x00\x00\x00\x00\x00\x00\x00"..., 150) = 150 [pid 297] futex(0x7f6d7359a3ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 23.246705][ T28] audit: type=1400 audit(1734802795.681:68): avc: denied { open } for pid=296 comm="syz-executor719" 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 [ 23.270295][ T28] audit: type=1400 audit(1734802795.681:69): avc: denied { mounton } for pid=296 comm="syz-executor719" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 23.282242][ T299] general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN [ 23.292827][ T28] audit: type=1400 audit(1734802795.681:70): avc: denied { mount } for pid=296 comm="syz-executor719" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 23.304271][ T299] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 23.304287][ T299] CPU: 0 PID: 299 Comm: syz-executor719 Not tainted 6.1.118-syzkaller-00074-g3e3f2b9e9fca #0 [ 23.304307][ T299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 23.354273][ T299] RIP: 0010:do_rmdir+0x33f/0x630 [ 23.359046][ T299] Code: ff 4c 89 64 24 50 72 0d e8 ce e7 ab ff 45 89 fc e9 99 00 00 00 49 8d 5f 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 03 5b f3 ff 48 83 3b 00 74 5d e8 98 [ 23.378479][ T299] RSP: 0018:ffffc90000ee7dc0 EFLAGS: 00010207 [ 23.384469][ T299] RAX: 0000000000000006 RBX: 0000000000000036 RCX: dffffc0000000000 [ 23.392374][ T299] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 [ 23.400181][ T299] RBP: ffffc90000ee7ef8 R08: ffffffff81cc2878 R09: fffff520001dcf91 [ 23.408394][ T299] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810072d8b0 [ 23.416195][ T299] R13: ffffc90000ee7e40 R14: 1ffff110200e5b16 R15: 0000000000000006 [ 23.424004][ T299] FS: 00007f6d734ad6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 23.432772][ T299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.439198][ T299] CR2: 00007f6d734add58 CR3: 0000000120c69000 CR4: 00000000003506b0 [ 23.447008][ T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.454815][ T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.462714][ T299] Call Trace: [ 23.465846][ T299] [ 23.468618][ T299] ? __die_body+0x62/0xb0 [ 23.472788][ T299] ? die_addr+0x9f/0xd0 [ 23.476784][ T299] ? exc_general_protection+0x317/0x4c0 [ 23.482159][ T299] ? asm_exc_general_protection+0x27/0x30 [ 23.487712][ T299] ? fast_dput+0x78/0x2a0 [ 23.491883][ T299] ? do_rmdir+0x33f/0x630 [ 23.496045][ T299] ? d_delete_notify+0x160/0x160 [ 23.500816][ T299] ? strncpy_from_user+0x169/0x2b0 [ 23.505763][ T299] ? getname_flags+0x1fd/0x520 [ 23.510366][ T299] __x64_sys_rmdir+0x49/0x50 [ 23.514791][ T299] x64_sys_call+0x274/0x9a0 [ 23.519128][ T299] do_syscall_64+0x3b/0xb0 [ 23.523380][ T299] ? clear_bhb_loop+0x55/0xb0 [ 23.527896][ T299] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 23.533620][ T299] RIP: 0033:0x7f6d73510f69 [pid 297] futex(0x7f6d7359a3e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 296] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 23.537876][ T299] 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 [ 23.557316][ T299] RSP: 002b:00007f6d734ad168 EFLAGS: 00000246 ORIG_RAX: 0000000000000054 [ 23.565559][ T299] RAX: ffffffffffffffda RBX: 00007f6d7359a3f8 RCX: 00007f6d73510f69 [ 23.573405][ T299] RDX: 00007f6d734eb886 RSI: c27b5a7bb6bcc546 RDI: 0000000020000200 [ 23.581187][ T299] RBP: 00007f6d7359a3f0 R08: 00007ffc138ea2d7 R09: 00007f6d7359a3f8 [ 23.588993][ T299] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6d7359a3fc [ 23.596808][ T299] R13: 000000000000006e R14: 00007ffc138ea1f0 R15: 00007ffc138ea2d8 [ 23.604624][ T299] [ 23.607480][ T299] Modules linked in: [ 23.611904][ T299] ---[ end trace 0000000000000000 ]--- [ 23.617284][ T299] RIP: 0010:do_rmdir+0x33f/0x630 [ 23.622134][ T299] Code: ff 4c 89 64 24 50 72 0d e8 ce e7 ab ff 45 89 fc e9 99 00 00 00 49 8d 5f 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 03 5b f3 ff 48 83 3b 00 74 5d e8 98 [ 23.641602][ T299] RSP: 0018:ffffc90000ee7dc0 EFLAGS: 00010207 [ 23.647480][ T299] RAX: 0000000000000006 RBX: 0000000000000036 RCX: dffffc0000000000 [ 23.655315][ T299] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 [ 23.663123][ T299] RBP: ffffc90000ee7ef8 R08: ffffffff81cc2878 R09: fffff520001dcf91 [ 23.670956][ T299] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810072d8b0 [ 23.678736][ T299] R13: ffffc90000ee7e40 R14: 1ffff110200e5b16 R15: 0000000000000006 [ 23.686533][ T299] FS: 00007f6d734ad6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 23.695322][ T299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.701736][ T299] CR2: 00007f6d734add58 CR3: 0000000120c69000 CR4: 00000000003506b0 [ 23.709566][ T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.717350][ T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.725179][ T299] Kernel panic - not syncing: Fatal exception [ 23.731363][ T299] Kernel Offset: disabled [ 23.735489][ T299] Rebooting in 86400 seconds..