./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor969492794 <...> Warning: Permanently added '10.128.0.119' (ED25519) to the list of known hosts. execve("./syz-executor969492794", ["./syz-executor969492794"], 0x7ffc329ea990 /* 10 vars */) = 0 brk(NULL) = 0x555564f87000 brk(0x555564f87d40) = 0x555564f87d40 arch_prctl(ARCH_SET_FS, 0x555564f873c0) = 0 set_tid_address(0x555564f87690) = 293 set_robust_list(0x555564f876a0, 24) = 0 rseq(0x555564f87ce0, 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-executor969492794", 4096) = 27 getrandom("\xfd\x7f\x6b\xe1\x9e\x27\x29\xf7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555564f87d40 brk(0x555564fa8d40) = 0x555564fa8d40 brk(0x555564fa9000) = 0x555564fa9000 mprotect(0x7ffaaf4d1000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555564f87690) = 294 ./strace-static-x86_64: Process 294 attached [pid 294] set_robust_list(0x555564f876a0, 24) = 0 [pid 294] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 294] setsid() = 1 [pid 294] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 294] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 294] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 294] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 294] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 294] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 294] unshare(CLONE_NEWNS) = 0 [pid 294] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 294] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 294] unshare(CLONE_NEWCGROUP) = 0 [pid 294] unshare(CLONE_NEWUTS) = 0 [pid 294] unshare(CLONE_SYSVSEM) = 0 [pid 294] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 294] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 294] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 294] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 294] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 294] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 294] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 294] getpid() = 1 [pid 294] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< {parent_tid=[2]}, 88) = 2 [pid 294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 294] futex(0x7ffaaf4d73c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7ffaaf4d73cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 295 attached [pid 295] set_robust_list(0x7ffaaf4059a0, 24) = 0 [pid 295] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 295] openat(AT_FDCWD, "/dev/fuse", O_RDWR) = 3 [pid 295] futex(0x7ffaaf4d73cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7ffaaf4d73c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7ffaaf4d73cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] <... futex resumed>) = 1 [pid 295] mkdir("./file0", 0777) = 0 [pid 295] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [ 29.390318][ T24] audit: type=1400 audit(1727101413.700:68): avc: denied { mount } for pid=294 comm="syz-executor969" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 29.413561][ T24] audit: type=1400 audit(1727101413.710:69): avc: denied { mounton } for pid=294 comm="syz-executor969" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [pid 295] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 294] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 294] futex(0x7ffaaf4d73dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ffaaf3c4000 [pid 294] mprotect(0x7ffaaf3c5000, 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=0x7ffaaf3e4990, parent_tid=0x7ffaaf3e4990, exit_signal=0, stack=0x7ffaaf3c4000, stack_size=0x20300, tls=0x7ffaaf3e46c0} => {parent_tid=[3]}, 88) = 3 [pid 294] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 294] futex(0x7ffaaf4d73d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7ffaaf4d73dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x7ffaaf3e49a0, 24) = 0 [pid 297] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 297] read(3, "\x38\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\x20\x00\x00\x00\x00\x00\x02\x00\xfb\xff\xff\x83", 8192) = 56 [pid 297] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x28\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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(0x7ffaaf4d73dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7ffaaf4d73d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7ffaaf4d73dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [pid 297] 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\x02\x00\x00\x00\x00\x00\x00\x00\x00\x80\x01\x00\x00\x00\x00\x00", 8192) = 48 [pid 297] 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 295] <... openat resumed>) = 4 [pid 295] chdir("./file0" [pid 297] <... write resumed>) = 32 [pid 297] futex(0x7ffaaf4d73dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7ffaaf4d73d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 294] futex(0x7ffaaf4d73dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [pid 297] read(3, "\x30\x00\x00\x00\x22\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\x02\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00", 8192) = 48 [pid 297] write(3, "\x10\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00", 16 [pid 295] <... chdir resumed>) = 0 [pid 295] futex(0x7ffaaf4d73cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7ffaaf4d73c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 297] <... write resumed>) = 16 [pid 297] futex(0x7ffaaf4d73dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... futex resumed>) = 0 [pid 294] futex(0x7ffaaf4d73c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 294] <... futex resumed>) = 1 [pid 295] mkdir("./file0", 000 [pid 294] futex(0x7ffaaf4d73cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 297] <... futex resumed>) = 1 [ 29.435815][ T24] audit: type=1400 audit(1727101413.740:70): avc: denied { mounton } for pid=294 comm="syz-executor969" path="/root/syz-tmp" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 29.458962][ T24] audit: type=1400 audit(1727101413.740:71): avc: denied { mount } for pid=294 comm="syz-executor969" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1 [pid 297] futex(0x7ffaaf4d73d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 294] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 294] futex(0x7ffaaf4d73cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 294] futex(0x7ffaaf4d73cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 294] futex(0x7ffaaf4d73cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 294] futex(0x7ffaaf4d73d8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 294] futex(0x7ffaaf4d73dc, 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\x08\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [ 29.482249][ T24] audit: type=1400 audit(1727101413.740:72): avc: denied { mounton } for pid=294 comm="syz-executor969" path="/root/syz-tmp/newroot/dev" dev="tmpfs" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_tmpfs_t tclass=dir permissive=1 [ 29.506573][ T24] audit: type=1400 audit(1727101413.740:73): avc: denied { mount } for pid=294 comm="syz-executor969" name="/" dev="proc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:proc_t tclass=filesystem permissive=1 [ 29.529379][ T24] audit: type=1400 audit(1727101413.750:74): avc: denied { unmount } for pid=294 comm="syz-executor969" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 29.542247][ T295] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 29.549329][ T24] audit: type=1400 audit(1727101413.760:75): avc: denied { mounton } for pid=294 comm="syz-executor969" path="/dev/binderfs" dev="devtmpfs" ino=357 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 29.560745][ T295] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 29.560759][ T295] CPU: 1 PID: 295 Comm: syz-executor969 Not tainted 5.10.225-syzkaller-00513-g8d23314f588a #0 [ 29.560766][ T295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 29.560799][ T295] RIP: 0010:filename_create+0x225/0x750 [ 29.560819][ T295] Code: 89 e2 e8 9e 97 ff ff 49 89 c4 48 3d 01 f0 ff ff 72 07 e8 1e bb b6 ff eb 5f 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 70 04 00 00 4c 89 64 24 30 45 8b 24 24 bb [ 29.637078][ T295] RSP: 0018:ffffc90000b67d40 EFLAGS: 00010247 [ 29.643594][ T295] RAX: 0000000000000000 RBX: ffff88811d2c9030 RCX: dffffc0000000000 [ 29.651795][ T295] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000 [ 29.659659][ T295] RBP: ffffc90000b67e30 R08: ffffffff81b68a38 R09: ffffed1023a5920c [ 29.667557][ T295] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000005 [ 29.675456][ T295] R13: 1ffff9200016cfd5 R14: ffffc90000b67ea8 R15: 1ffff9200016cfd4 [ 29.683258][ T295] FS: 00007ffaaf4056c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 29.692302][ T295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.698716][ T295] CR2: 0000000020010000 CR3: 0000000108784000 CR4: 00000000003506a0 [ 29.706523][ T295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.714497][ T295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.722800][ T295] Call Trace: [ 29.726040][ T295] ? __die_body+0x62/0xb0 [ 29.730291][ T295] ? die_addr+0x9f/0xd0 [ 29.734286][ T295] ? exc_general_protection+0x3ff/0x490 [ 29.739647][ T295] ? asm_exc_general_protection+0x1e/0x30 [ 29.745894][ T295] ? fast_dput+0x78/0x2a0 [ 29.750320][ T295] ? filename_create+0x225/0x750 [ 29.755199][ T295] ? __check_object_size+0x2e6/0x3c0 [ 29.760470][ T295] ? kern_path_create+0x40/0x40 [ 29.765498][ T295] do_mkdirat+0xcc/0x2c0 [ 29.770218][ T295] ? do_mknodat+0x450/0x450 [ 29.774634][ T295] __x64_sys_mkdir+0x60/0x70 [ 29.779236][ T295] do_syscall_64+0x34/0x70 [ 29.783744][ T295] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 29.789728][ T295] RIP: 0033:0x7ffaaf447c69 [ 29.794376][ T295] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 18 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 [ 29.814521][ T295] RSP: 002b:00007ffaaf405218 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 29.823082][ T295] RAX: ffffffffffffffda RBX: 00007ffaaf4d73c8 RCX: 00007ffaaf447c69 [ 29.831243][ T295] RDX: 00007ffaaf447c69 RSI: 0000000000000000 RDI: 0000000020000080 [ 29.839520][ T295] RBP: 00007ffaaf4d73c0 R08: 0000000000000000 R09: 0000000000000000 [pid 297] write(3, "\x95\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 149) = 149 [pid 294] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 297] futex(0x7ffaaf4d73dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 29.847780][ T295] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffaaf4a42ec [ 29.856051][ T295] R13: 00007ffaaf49c039 R14: 0030656c69662f2e R15: 00007ffaaf4a22e8 [ 29.864085][ T295] Modules linked in: [ 29.868726][ T295] ---[ end trace 877129038900ff5e ]--- [ 29.874247][ T295] RIP: 0010:filename_create+0x225/0x750 [pid 297] futex(0x7ffaaf4d73d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 294] exit_group(1 [pid 297] <... futex resumed>) = ? [pid 294] <... exit_group resumed>) = ? [pid 297] +++ exited with 1 +++ [ 29.879644][ T295] Code: 89 e2 e8 9e 97 ff ff 49 89 c4 48 3d 01 f0 ff ff 72 07 e8 1e bb b6 ff eb 5f 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 70 04 00 00 4c 89 64 24 30 45 8b 24 24 bb [ 29.900954][ T295] RSP: 0018:ffffc90000b67d40 EFLAGS: 00010247 [ 29.907128][ T295] RAX: 0000000000000000 RBX: ffff88811d2c9030 RCX: dffffc0000000000 [ 29.915407][ T295] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000 [ 29.923272][ T295] RBP: ffffc90000b67e30 R08: ffffffff81b68a38 R09: ffffed1023a5920c [ 29.932142][ T295] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000005 [ 29.940380][ T295] R13: 1ffff9200016cfd5 R14: ffffc90000b67ea8 R15: 1ffff9200016cfd4 [ 29.948359][ T295] FS: 00007ffaaf4056c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 29.957704][ T295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.964568][ T295] CR2: 0000000006947258 CR3: 0000000108784000 CR4: 00000000003506b0 [ 29.972510][ T295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.980551][ T295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.989350][ T295] Kernel panic - not syncing: Fatal exception [ 29.995667][ T295] Kernel Offset: disabled [ 30.000053][ T295] Rebooting in 86400 seconds..