./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor694718456 <...> [ 4.737934][ T102] udevadm (102) used greatest stack depth: 23120 bytes left [ 5.568379][ T121] dbus-uuidgen (121) used greatest stack depth: 21984 bytes left [ 6.321749][ T30] kauditd_printk_skb: 48 callbacks suppressed [ 6.321765][ T30] audit: type=1400 audit(1730121440.252:59): avc: denied { search } for pid=181 comm="ssh-keygen" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:ssh_keygen_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 6.353255][ T30] audit: type=1400 audit(1730121440.282:60): avc: denied { use } for pid=186 comm="sshd" path="/dev/null" dev="devtmpfs" ino=4 scontext=system_u:system_r:sshd_t tcontext=system_u:system_r:kernel_t tclass=fd permissive=1 [ 14.125766][ T30] audit: type=1400 audit(1730121448.052:61): avc: denied { transition } for pid=225 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.129982][ T30] audit: type=1400 audit(1730121448.052:62): avc: denied { noatsecure } for pid=225 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.134177][ T30] audit: type=1400 audit(1730121448.062:63): avc: denied { write } for pid=225 comm="sh" path="pipe:[897]" dev="pipefs" ino=897 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 14.137889][ T30] audit: type=1400 audit(1730121448.062:64): avc: denied { rlimitinh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.142242][ T30] audit: type=1400 audit(1730121448.062:65): avc: denied { siginh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.207' (ED25519) to the list of known hosts. execve("./syz-executor694718456", ["./syz-executor694718456"], 0x7ffee5574620 /* 10 vars */) = 0 brk(NULL) = 0x55557ef1a000 brk(0x55557ef1ad40) = 0x55557ef1ad40 arch_prctl(ARCH_SET_FS, 0x55557ef1a3c0) = 0 set_tid_address(0x55557ef1a690) = 295 set_robust_list(0x55557ef1a6a0, 24) = 0 rseq(0x55557ef1ace0, 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-executor694718456", 4096) = 27 getrandom("\x3e\x40\x15\x84\x54\xcf\xe7\x72", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557ef1ad40 brk(0x55557ef3bd40) = 0x55557ef3bd40 brk(0x55557ef3c000) = 0x55557ef3c000 mprotect(0x7f3dd4853000, 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(0x7f3dd48593ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f3dd47f5240, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3dd47e68c0}, 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) = 0x7f3dd476e000 mprotect(0x7f3dd476f000, 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=0x7f3dd478e990, parent_tid=0x7f3dd478e990, exit_signal=0, stack=0x7f3dd476e000, stack_size=0x20300, tls=0x7f3dd478e6c0} => {parent_tid=[296]}, 88) = 296 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 futex(0x7f3dd48593e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 futex(0x7f3dd48593ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x7f3dd478e9a0, 24) = 0 [pid 296] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 296] mkdir("./file0", 000) = 0 [pid 296] futex(0x7f3dd48593ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f3dd48593e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f3dd48593ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... futex resumed>) = 1 [pid 296] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3 [pid 296] futex(0x7f3dd48593ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f3dd48593e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f3dd48593ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... futex resumed>) = 1 [pid 296] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=0000000000000000040000,user_id=00000000000000000000,group_id=00000000"...) = 0 [pid 296] futex(0x7f3dd48593ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f3dd48593e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f3dd48593ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... futex resumed>) = 1 [pid 296] 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"..., 8224) = 104 [pid 296] futex(0x7f3dd48593ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f3dd48593e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f3dd48593ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... futex resumed>) = 1 [ 23.531837][ T30] audit: type=1400 audit(1730121457.462:66): avc: denied { execmem } for pid=295 comm="syz-executor694" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 23.551162][ T30] audit: type=1400 audit(1730121457.462:67): avc: denied { read write } for pid=295 comm="syz-executor694" 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 [ 23.574700][ T30] audit: type=1400 audit(1730121457.462:68): avc: denied { open } for pid=295 comm="syz-executor694" 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 [ 23.597924][ T30] audit: type=1400 audit(1730121457.462:69): avc: denied { mounton } for pid=295 comm="syz-executor694" 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] read(3, [pid 295] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 295] futex(0x7f3dd48593fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3dd474d000 [pid 295] mprotect(0x7f3dd474e000, 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=0x7f3dd476d990, parent_tid=0x7f3dd476d990, exit_signal=0, stack=0x7f3dd474d000, stack_size=0x20300, tls=0x7f3dd476d6c0} => {parent_tid=[298]}, 88) = 298 [pid 295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 295] futex(0x7f3dd48593f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f3dd48593fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x7f3dd476d9a0, 24) = 0 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x27\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfd\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", 80) = 80 [pid 298] futex(0x7f3dd48593fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f3dd48593f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f3dd48593fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 298] <... futex resumed>) = 1 [pid 298] mkdir("./file0/file0/file0", 0777 [pid 296] <... 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\x2a\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [pid 296] write(3, "\x9f\x00\x00\x00\x00\x00\x00\x00\x04\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 159) = 159 [pid 296] futex(0x7f3dd48593ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 23.620468][ T30] audit: type=1400 audit(1730121457.482:70): avc: denied { mount } for pid=295 comm="syz-executor694" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 23.623051][ T298] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 23.653847][ T298] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 23.662088][ T298] CPU: 1 PID: 298 Comm: syz-executor694 Not tainted 5.15.167-syzkaller-android13-5.15.167_r00 #0 [ 23.672416][ T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 23.682310][ T298] RIP: 0010:step_into+0x1b6/0xe70 [ 23.687170][ T298] Code: 20 0f 85 99 0a 00 00 44 8b 3b 43 80 3c 2c 00 74 0a 48 8b 7c 24 18 e8 c9 b9 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 86 0a 00 00 8b 1b 89 de 81 e6 00 00 07 [ 23.706610][ T298] RSP: 0018:ffffc900009a77a0 EFLAGS: 00010203 [ 23.712514][ T298] RAX: 0000000000000001 RBX: 000000000000000f RCX: ffff88811a4cbb40 [ 23.720413][ T298] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 23.728223][ T298] RBP: ffffc900009a78d0 R08: ffffffff81beef50 R09: ffffed10245bf935 [ 23.736123][ T298] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000134f0b [ 23.743934][ T298] R13: dffffc0000000000 R14: ffffc900009a7ba0 R15: 0000000000000010 [ 23.751744][ T298] FS: 00007f3dd476d6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.760511][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.766933][ T298] CR2: 00007f3dd476dd58 CR3: 000000011fa90000 CR4: 00000000003506a0 [ 23.774746][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.782559][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.790372][ T298] Call Trace: [ 23.793504][ T298] [ 23.796271][ T298] ? __die_body+0x62/0xb0 [ 23.800436][ T298] ? die_addr+0x9f/0xd0 [ 23.804434][ T298] ? exc_general_protection+0x311/0x4b0 [ 23.809838][ T298] ? dentry_free+0xbf/0x160 [ 23.814183][ T298] ? asm_exc_general_protection+0x27/0x30 [ 23.819709][ T298] ? step_into+0x160/0xe70 [ 23.823961][ T298] ? step_into+0x1b6/0xe70 [ 23.828217][ T298] ? set_root+0x400/0x400 [ 23.832380][ T298] walk_component+0x359/0x610 [ 23.836892][ T298] ? nd_alloc_stack+0xf0/0xf0 [ 23.841405][ T298] ? security_inode_permission+0xb0/0xf0 [ 23.846873][ T298] ? fuse_do_getattr+0x7a0/0x7a0 [ 23.851648][ T298] link_path_walk+0x642/0xd90 [ 23.856165][ T298] ? handle_lookup_down+0x130/0x130 [ 23.861194][ T298] __filename_parentat+0x24c/0x6c0 [ 23.866228][ T298] ? vfs_path_parent_lookup+0x50/0x50 [ 23.871441][ T298] filename_create+0xf2/0x530 [ 23.875947][ T298] ? kern_path_create+0x1a0/0x1a0 [ 23.880811][ T298] do_mkdirat+0xbd/0x450 [ 23.884895][ T298] ? vfs_mkdir+0x610/0x610 [ 23.889139][ T298] ? getname_flags+0x1fd/0x520 [ 23.893742][ T298] __x64_sys_mkdir+0x6e/0x80 [ 23.898182][ T298] x64_sys_call+0x26d/0x9a0 [ 23.902508][ T298] do_syscall_64+0x3b/0xb0 [ 23.906761][ T298] ? clear_bhb_loop+0x35/0x90 [ 23.911272][ T298] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 23.917001][ T298] RIP: 0033:0x7f3dd47ce4c7 [ 23.921274][ T298] Code: ff ff 77 07 31 c0 c3 0f 1f 40 00 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 23.940783][ T298] RSP: 002b:00007f3dd476d0f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 23.949113][ T298] RAX: ffffffffffffffda RBX: 00007f3dd48593f8 RCX: 00007f3dd47ce4c7 [ 23.956924][ T298] RDX: 00000000000f4240 RSI: 00000000000001ff RDI: 0000000020000200 [ 23.964736][ T298] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 23.972549][ T298] R10: 00007ffead431657 R11: 0000000000000206 R12: 00007f3dd482605c [pid 296] futex(0x7f3dd48593e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 295] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 23.980359][ T298] R13: 0030656c69662f2e R14: 00007f3dd4826078 R15: 00007ffead431658 [ 23.988176][ T298] [ 23.991037][ T298] Modules linked in: [ 23.995073][ T298] ---[ end trace 0a93be4ecbe70ea8 ]--- [ 24.000439][ T298] RIP: 0010:step_into+0x1b6/0xe70 [ 24.005281][ T298] Code: 20 0f 85 99 0a 00 00 44 8b 3b 43 80 3c 2c 00 74 0a 48 8b 7c 24 18 e8 c9 b9 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 86 0a 00 00 8b 1b 89 de 81 e6 00 00 07 [ 24.024762][ T298] RSP: 0018:ffffc900009a77a0 EFLAGS: 00010203 [ 24.030641][ T298] RAX: 0000000000000001 RBX: 000000000000000f RCX: ffff88811a4cbb40 [ 24.038457][ T298] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 24.046258][ T298] RBP: ffffc900009a78d0 R08: ffffffff81beef50 R09: ffffed10245bf935 [ 24.054083][ T298] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000134f0b [ 24.061893][ T298] R13: dffffc0000000000 R14: ffffc900009a7ba0 R15: 0000000000000010 [ 24.069709][ T298] FS: 00007f3dd476d6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.078558][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.084960][ T298] CR2: 000055c2d91090d8 CR3: 000000011fa90000 CR4: 00000000003506b0 [ 24.092796][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.100606][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.108432][ T298] Kernel panic - not syncing: Fatal exception [ 24.114618][ T298] Kernel Offset: disabled [ 24.118747][ T298] Rebooting in 86400 seconds..