./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1930233124 <...> (1688304840.566:64): 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 [ 12.868241][ T28] audit: type=1400 audit(1688304840.566:65): 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 [ 14.246249][ T226] sshd (226) used greatest stack depth: 22824 bytes left Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts. execve("./syz-executor1930233124", ["./syz-executor1930233124"], 0x7ffce1051780 /* 10 vars */) = 0 brk(NULL) = 0x555556de8000 brk(0x555556de8c40) = 0x555556de8c40 arch_prctl(ARCH_SET_FS, 0x555556de8300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x555556de85d0) = 294 set_robust_list(0x555556de85e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f98245ceb40, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f98245cf210}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f98245cebe0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f98245cf210}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1930233124", 4096) = 28 brk(0x555556e09c40) = 0x555556e09c40 brk(0x555556e0a000) = 0x555556e0a000 mprotect(0x7f9824694000, 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 openat(AT_FDCWD, "/sys/kernel/debug/failslab/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/ignore-private", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/min-order", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de85d0) = 295 ./strace-static-x86_64: Process 295 attached [pid 295] set_robust_list(0x555556de85e0, 24) = 0 [pid 295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 295] setpgid(0, 0) = 0 [pid 295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 295] write(3, "1000", 4) = 4 [pid 295] close(3) = 0 [pid 295] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f982459e000 [pid 295] mprotect(0x7f982459f000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 295] clone(child_stack=0x7f98245be3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[296], tls=0x7f98245be700, child_tidptr=0x7f98245be9d0) = 296 [pid 295] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x7f98245be9e0, 24) = 0 [pid 296] mkdir("./file0", 000) = 0 [pid 296] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f982469a4cc, 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(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f982469a4cc, 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=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [pid 296] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f982469a4cc, 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\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"..., 8224) = 104 [pid 296] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... futex resumed>) = 1 [pid 296] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 296] write(4, "13", 2) = 2 [ 21.819261][ T28] audit: type=1400 audit(1688304849.536:66): avc: denied { execmem } for pid=294 comm="syz-executor193" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.838528][ T28] audit: type=1400 audit(1688304849.536:67): avc: denied { read write } for pid=295 comm="syz-executor193" 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 296] creat("./file0/file0", 000 [pid 295] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 295] futex(0x7f982469a4dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f982457d000 [pid 295] mprotect(0x7f982457e000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 295] clone(child_stack=0x7f982459d3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[298], tls=0x7f982459d700, child_tidptr=0x7f982459d9d0) = 298 [pid 295] futex(0x7f982469a4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f982469a4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x7f982459d9e0, 24) = 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\x21\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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(0x7f982469a4dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... futex resumed>) = 0 [pid 295] futex(0x7f982469a4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] futex(0x7f982469a4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 298] <... futex resumed>) = 1 [pid 298] read(3, "\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\x28\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [ 21.862363][ T28] audit: type=1400 audit(1688304849.536:68): avc: denied { open } for pid=295 comm="syz-executor193" 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 [ 21.885985][ T28] audit: type=1400 audit(1688304849.536:69): avc: denied { mounton } for pid=295 comm="syz-executor193" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 21.889246][ T296] FAULT_INJECTION: forcing a failure. [pid 298] write(3, "\x90\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 144) = 144 [pid 298] futex(0x7f982469a4dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 298] futex(0x7f982469a4d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 295] <... futex resumed>) = 0 [ 21.889246][ T296] name failslab, interval 1, probability 0, space 0, times 1 [ 21.908791][ T28] audit: type=1400 audit(1688304849.536:70): avc: denied { mount } for pid=295 comm="syz-executor193" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 21.921212][ T296] CPU: 0 PID: 296 Comm: syz-executor193 Not tainted 6.1.25-syzkaller-00155-ged2a228522b9 #0 [ 21.952634][ T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 21.965868][ T296] Call Trace: [ 21.968992][ T296] [ 21.971774][ T296] dump_stack_lvl+0x151/0x1b7 [ 21.976932][ T296] ? nf_tcp_handle_invalid+0x3f1/0x3f1 [ 21.982343][ T296] dump_stack+0x15/0x17 [ 21.986331][ T296] should_fail_ex+0x3d0/0x520 [ 21.990836][ T296] ? fuse_file_alloc+0x54/0x250 [ 21.995520][ T296] __should_failslab+0xaf/0xf0 [ 22.000126][ T296] should_failslab+0x9/0x20 [ 22.004458][ T296] __kmem_cache_alloc_node+0x3d/0x250 [ 22.009668][ T296] ? fuse_file_alloc+0x54/0x250 [ 22.014351][ T296] kmalloc_trace+0x2a/0xa0 [ 22.018605][ T296] fuse_file_alloc+0x54/0x250 [ 22.023120][ T296] fuse_create_open+0x364/0x3480 [ 22.027892][ T296] ? _raw_spin_trylock_bh+0x190/0x190 [ 22.033193][ T296] ? fuse_rename_common+0xb70/0xb70 [ 22.038223][ T296] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 22.043527][ T296] ? security_transition_sid+0x7d/0x90 [ 22.048985][ T296] ? may_create+0x65a/0x900 [ 22.053499][ T296] ? show_sid+0x270/0x270 [ 22.058011][ T296] ? make_kgid+0x6f0/0x6f0 [ 22.071829][ T296] fuse_atomic_open+0x22e/0x3a0 [ 22.076826][ T296] path_openat+0xf52/0x2d60 [ 22.081364][ T296] ? fuse_rename2+0x4470/0x4470 [ 22.086047][ T296] ? do_filp_open+0x480/0x480 [ 22.090559][ T296] do_filp_open+0x230/0x480 [ 22.094902][ T296] ? vfs_tmpfile+0x480/0x480 [ 22.099334][ T296] ? alloc_fd+0x4fa/0x5a0 [ 22.103490][ T296] do_sys_openat2+0x13f/0x850 [ 22.108004][ T296] ? ptrace_stop+0x709/0x930 [ 22.112435][ T296] ? do_sys_open+0x220/0x220 [ 22.116862][ T296] ? _raw_spin_unlock_irq+0x4d/0x70 [ 22.121888][ T296] ? ptrace_notify+0x249/0x350 [ 22.126575][ T296] __x64_sys_creat+0x11f/0x160 [ 22.131179][ T296] ? __x64_compat_sys_openat+0x290/0x290 [ 22.136644][ T296] ? syscall_enter_from_user_mode+0x6a/0x190 [ 22.142546][ T296] do_syscall_64+0x3d/0xb0 [ 22.146798][ T296] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 22.152541][ T296] RIP: 0033:0x7f982460d419 [ 22.156781][ T296] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 b8 ff ff ff f7 d8 64 89 01 48 [ 22.177806][ T296] RSP: 002b:00007f98245be2e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 22.186126][ T296] RAX: ffffffffffffffda RBX: 00007f982469a4c0 RCX: 00007f982460d419 [ 22.193942][ T296] RDX: 00000000000002f0 RSI: 0000000000000000 RDI: 00000000200002c0 [ 22.201745][ T296] RBP: 00007f9824667264 R08: 0000000000000002 R09: 0000000000003331 [ 22.209563][ T296] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f982469a4c8 [pid 295] futex(0x7f982469a4d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 295] <... futex resumed>) = 1 [pid 295] futex(0x7f982469a4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... creat resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 296] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 296] futex(0x7f982469a4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 298] read(3, [pid 295] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 22.217376][ T296] R13: 00007f98245be2f0 R14: 2f30656c69662f2e R15: 0000000000000002 [ 22.225183][ T296] [pid 295] exit_group(0 [pid 298] <... read resumed> ) = ? [pid 296] <... futex resumed>) = ? [pid 295] <... exit_group resumed>) = ? [pid 298] +++ exited with 0 +++ [pid 296] +++ exited with 0 +++ [pid 295] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=295, si_uid=0, si_status=0, si_utime=0, si_stime=32} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de85d0) = 300 ./strace-static-x86_64: Process 300 attached [pid 300] set_robust_list(0x555556de85e0, 24) = 0 [pid 300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] setpgid(0, 0) = 0 [pid 300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 300] write(3, "1000", 4) = 4 [pid 300] close(3) = 0 [pid 300] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f982459e000 [pid 300] mprotect(0x7f982459f000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 300] clone(child_stack=0x7f98245be3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 301 attached , parent_tid=[301], tls=0x7f98245be700, child_tidptr=0x7f98245be9d0) = 301 [pid 300] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] set_robust_list(0x7f98245be9e0, 24) = 0 [pid 301] mkdir("./file0", 000) = -1 EEXIST (File exists) [pid 301] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7f982469a4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 300] <... futex resumed>) = 1 [pid 301] <... futex resumed>) = 0 [pid 301] futex(0x7f982469a4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 300] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 300] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 301] <... futex resumed>) = 0 [pid 301] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3 [pid 301] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7f982469a4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 300] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 300] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 301] <... futex resumed>) = 0 [pid 301] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [pid 300] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 301] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 300] <... futex resumed>) = 0 [pid 300] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 300] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 301] 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"..., 8224) = 104 [pid 301] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 300] <... futex resumed>) = 0 [pid 300] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 300] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 301] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 301] write(4, "13", 2) = 2 [pid 301] creat("./file0/file0", 000 [pid 300] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 300] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 300] futex(0x7f982469a4dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f982457d000 [pid 300] mprotect(0x7f982457e000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 300] clone(child_stack=0x7f982459d3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[302], tls=0x7f982459d700, child_tidptr=0x7f982459d9d0) = 302 ./strace-static-x86_64: Process 302 attached [pid 300] futex(0x7f982469a4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 300] futex(0x7f982469a4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] set_robust_list(0x7f982459d9e0, 24) = 0 [pid 302] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x21\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 302] futex(0x7f982469a4dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 300] <... futex resumed>) = 0 [pid 302] futex(0x7f982469a4d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 300] futex(0x7f982469a4d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 302] read(3, [pid 300] <... futex resumed>) = 0 [pid 302] <... 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\x2d\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [pid 302] write(3, "\x90\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 144) = 144 [ 22.409989][ T28] audit: type=1400 audit(1688304850.126:71): avc: denied { mounton } for pid=300 comm="syz-executor193" path="/root/file0" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [pid 302] futex(0x7f982469a4dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] futex(0x7f982469a4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... futex resumed>) = 0 [pid 300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 300] futex(0x7f982469a4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 22.468248][ T301] FAULT_INJECTION: forcing a failure. [ 22.468248][ T301] name failslab, interval 1, probability 0, space 0, times 0 [ 22.481186][ T301] CPU: 0 PID: 301 Comm: syz-executor193 Not tainted 6.1.25-syzkaller-00155-ged2a228522b9 #0 [ 22.491078][ T301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 22.501067][ T301] Call Trace: [ 22.504184][ T301] [ 22.506963][ T301] dump_stack_lvl+0x151/0x1b7 [ 22.511473][ T301] ? nf_tcp_handle_invalid+0x3f1/0x3f1 [ 22.516784][ T301] ? __kernel_text_address+0xd/0x40 [ 22.521804][ T301] ? unwind_get_return_address+0x4d/0x90 [ 22.527273][ T301] dump_stack+0x15/0x17 [ 22.531264][ T301] should_fail_ex+0x3d0/0x520 [ 22.535776][ T301] ? fuse_get_req+0x3b3/0xa80 [ 22.540296][ T301] __should_failslab+0xaf/0xf0 [ 22.544975][ T301] should_failslab+0x9/0x20 [ 22.549316][ T301] kmem_cache_alloc+0x3b/0x2c0 [ 22.553915][ T301] fuse_get_req+0x3b3/0xa80 [ 22.558257][ T301] ? kasan_set_track+0x4b/0x70 [ 22.562948][ T301] ? kasan_save_alloc_info+0x1f/0x30 [ 22.568067][ T301] ? fuse_simple_request+0x18f0/0x18f0 [ 22.573358][ T301] ? fuse_create_open+0x364/0x3480 [ 22.578301][ T301] ? fuse_atomic_open+0x22e/0x3a0 [ 22.583259][ T301] ? path_openat+0xf52/0x2d60 [ 22.587763][ T301] ? do_filp_open+0x230/0x480 [ 22.592282][ T301] ? do_sys_openat2+0x13f/0x850 [ 22.596962][ T301] ? __x64_sys_creat+0x11f/0x160 [ 22.601736][ T301] ? do_syscall_64+0x3d/0xb0 [ 22.606165][ T301] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 22.612068][ T301] fuse_simple_request+0x124/0x18f0 [ 22.617102][ T301] ? fuse_put_request+0x2d0/0x2d0 [ 22.621964][ T301] ? kasan_save_alloc_info+0x1f/0x30 [ 22.627082][ T301] fuse_create_open+0xe22/0x3480 [ 22.631855][ T301] ? _raw_spin_trylock_bh+0x190/0x190 [ 22.637067][ T301] ? fuse_rename_common+0xb70/0xb70 [ 22.642101][ T301] ? security_compute_sid+0x1ddb/0x1f40 [ 22.647479][ T301] ? __mmu_notifier_release+0x586/0x620 [ 22.654001][ T301] ? avc_has_perm_noaudit+0x348/0x430 [ 22.659703][ T301] ? security_transition_sid+0x7d/0x90 [ 22.665239][ T301] ? may_create+0x65a/0x900 [ 22.669567][ T301] ? show_sid+0x270/0x270 [ 22.673742][ T301] ? make_kgid+0x6f0/0x6f0 [ 22.678016][ T301] fuse_atomic_open+0x22e/0x3a0 [ 22.682759][ T301] path_openat+0xf52/0x2d60 [ 22.687100][ T301] ? fuse_rename2+0x4470/0x4470 [ 22.691786][ T301] ? do_filp_open+0x480/0x480 [ 22.696384][ T301] do_filp_open+0x230/0x480 [ 22.700721][ T301] ? vfs_tmpfile+0x480/0x480 [ 22.705151][ T301] ? alloc_fd+0x4fa/0x5a0 [ 22.709314][ T301] do_sys_openat2+0x13f/0x850 [ 22.713917][ T301] ? ptrace_stop+0x709/0x930 [ 22.718339][ T301] ? do_sys_open+0x220/0x220 [ 22.722766][ T301] ? _raw_spin_unlock_irq+0x4d/0x70 [ 22.727801][ T301] ? ptrace_notify+0x249/0x350 [ 22.732409][ T301] __x64_sys_creat+0x11f/0x160 [ 22.737002][ T301] ? __x64_compat_sys_openat+0x290/0x290 [ 22.742468][ T301] ? syscall_enter_from_user_mode+0x6a/0x190 [ 22.748283][ T301] do_syscall_64+0x3d/0xb0 [ 22.752541][ T301] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 22.758264][ T301] RIP: 0033:0x7f982460d419 [ 22.762605][ T301] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 b8 ff ff ff f7 d8 64 89 01 48 [ 22.784178][ T301] RSP: 002b:00007f98245be2e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 22.792404][ T301] RAX: ffffffffffffffda RBX: 00007f982469a4c0 RCX: 00007f982460d419 [ 22.800299][ T301] RDX: 00000000000002f0 RSI: 0000000000000000 RDI: 00000000200002c0 [ 22.808137][ T301] RBP: 00007f9824667264 R08: 0000000000000002 R09: 0000000000003331 [pid 300] futex(0x7f982469a4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] read(3, [pid 301] <... creat resumed>) = -1 ENOMEM (Cannot allocate memory) [pid 300] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 301] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 22.815925][ T301] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f982469a4c8 [ 22.823733][ T301] R13: 00007f98245be2f0 R14: 2f30656c69662f2e R15: 0000000000000002 [ 22.831550][ T301] [pid 301] futex(0x7f982469a4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 300] exit_group(0 [pid 302] <... read resumed> ) = ? [pid 301] <... futex resumed>) = ? [pid 300] <... exit_group resumed>) = ? [pid 302] +++ exited with 0 +++ [pid 301] +++ exited with 0 +++ [pid 300] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=300, si_uid=0, si_status=0, si_utime=0, si_stime=38} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de85d0) = 303 ./strace-static-x86_64: Process 303 attached [pid 303] set_robust_list(0x555556de85e0, 24) = 0 [pid 303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 303] setpgid(0, 0) = 0 [pid 303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 303] write(3, "1000", 4) = 4 [pid 303] close(3) = 0 [pid 303] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f982459e000 [pid 303] mprotect(0x7f982459f000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 303] clone(child_stack=0x7f98245be3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 304 attached , parent_tid=[304], tls=0x7f98245be700, child_tidptr=0x7f98245be9d0) = 304 [pid 304] set_robust_list(0x7f98245be9e0, 24) = 0 [pid 304] futex(0x7f982469a4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 303] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 304] <... futex resumed>) = 0 [pid 303] <... futex resumed>) = 1 [pid 304] mkdir("./file0", 000) = -1 EEXIST (File exists) [pid 304] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 304] futex(0x7f982469a4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 303] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 303] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 304] <... futex resumed>) = 0 [pid 304] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3 [pid 304] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 304] futex(0x7f982469a4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 303] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 303] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 304] <... futex resumed>) = 0 [pid 304] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"... [pid 303] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... mount resumed>) = 0 [pid 304] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 303] <... futex resumed>) = 0 [pid 303] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 303] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] 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"..., 8224) = 104 [pid 304] futex(0x7f982469a4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 303] <... futex resumed>) = 0 [pid 303] futex(0x7f982469a4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 303] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 304] write(4, "13", 2) = 2 [pid 304] creat("./file0/file0", 000 [pid 303] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 303] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 303] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 303] futex(0x7f982469a4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 303] futex(0x7f982469a4dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f982457d000 [pid 303] mprotect(0x7f982457e000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 303] clone(child_stack=0x7f982459d3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[305], tls=0x7f982459d700, child_tidptr=0x7f982459d9d0) = 305 [pid 303] futex(0x7f982469a4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 303] futex(0x7f982469a4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 305 attached [pid 305] set_robust_list(0x7f982459d9e0, 24) = 0 [pid 305] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x21\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 305] futex(0x7f982469a4dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] <... futex resumed>) = 0 [pid 303] futex(0x7f982469a4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 303] futex(0x7f982469a4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 305] <... futex resumed>) = 1 [pid 305] read(3, "\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\x30\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [pid 305] write(3, "\x90\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 144) = 144 [pid 305] futex(0x7f982469a4dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] <... futex resumed>) = 0 [pid 303] futex(0x7f982469a4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 303] futex(0x7f982469a4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 305] <... futex resumed>) = 1 [pid 305] read(3, "\x3e\x00\x00\x00\x23\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\x30\x01\x00\x00\x00\x00\x00\x00\x41\x82\x00\x00\x00\x80\x00\x00\x3f\x00\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 62 [pid 305] write(3, "\xa0\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\xfd\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 305] futex(0x7f982469a4dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 305] futex(0x7f982469a4d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 303] <... futex resumed>) = 0 [ 23.019601][ T304] FAULT_INJECTION: forcing a failure. [ 23.019601][ T304] name failslab, interval 1, probability 0, space 0, times 0 [ 23.032175][ T304] CPU: 1 PID: 304 Comm: syz-executor193 Not tainted 6.1.25-syzkaller-00155-ged2a228522b9 #0 [ 23.042098][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 23.052165][ T304] Call Trace: [ 23.055574][ T304] [ 23.058502][ T304] dump_stack_lvl+0x151/0x1b7 [ 23.064147][ T304] ? nf_tcp_handle_invalid+0x3f1/0x3f1 [ 23.069801][ T304] ? __kasan_check_write+0x14/0x20 [ 23.076662][ T304] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 23.082063][ T304] ? _raw_spin_lock+0x1b0/0x1b0 [ 23.086729][ T304] dump_stack+0x15/0x17 [ 23.090723][ T304] should_fail_ex+0x3d0/0x520 [ 23.095239][ T304] __should_failslab+0xaf/0xf0 [ 23.099838][ T304] should_failslab+0x9/0x20 [ 23.104181][ T304] slab_pre_alloc_hook+0x2e/0x1b0 [ 23.109036][ T304] ? fuse_iget+0x7c0/0x7c0 [ 23.113381][ T304] kmem_cache_alloc_lru+0x49/0x220 [pid 303] exit_group(0 [pid 305] <... futex resumed>) = ? [pid 303] <... exit_group resumed>) = ? [pid 305] +++ exited with 0 +++ [ 23.118323][ T304] ? fuse_alloc_inode+0x30/0x200 [ 23.123103][ T304] ? _raw_spin_unlock+0x4c/0x70 [ 23.127873][ T304] ? fuse_iget+0x7c0/0x7c0 [ 23.132125][ T304] ? fuse_inode_eq+0x80/0x80 [ 23.136556][ T304] fuse_alloc_inode+0x30/0x200 [ 23.141237][ T304] ? fuse_get_tree_submount+0x10e0/0x10e0 [ 23.146794][ T304] ? fuse_iget+0x7c0/0x7c0 [ 23.151043][ T304] ? fuse_inode_eq+0x80/0x80 [ 23.155470][ T304] iget5_locked+0xba/0x280 [ 23.159855][ T304] ? fuse_inode_eq+0x80/0x80 [ 23.164484][ T304] fuse_iget+0x293/0x7c0 [ 23.173076][ T304] ? kasan_save_alloc_info+0x1f/0x30 [ 23.178188][ T304] ? fuse_init_inode+0x350/0x350 [ 23.183626][ T304] ? fuse_passthrough_setup+0x9c/0x190 [ 23.189092][ T304] fuse_create_open+0x1afc/0x3480 [ 23.193943][ T304] ? _raw_spin_trylock_bh+0x190/0x190 [ 23.199151][ T304] ? fuse_rename_common+0xb70/0xb70 [ 23.204270][ T304] ? security_compute_sid+0x1ddb/0x1f40 [ 23.209761][ T304] ? __mmu_notifier_release+0x586/0x620 [ 23.215130][ T304] ? avc_has_perm_noaudit+0x348/0x430 [ 23.220340][ T304] ? security_transition_sid+0x7d/0x90 [ 23.225622][ T304] ? may_create+0x65a/0x900 [ 23.229960][ T304] ? show_sid+0x270/0x270 [ 23.234142][ T304] ? make_kgid+0x6f0/0x6f0 [ 23.238388][ T304] fuse_atomic_open+0x22e/0x3a0 [ 23.243155][ T304] path_openat+0xf52/0x2d60 [ 23.247492][ T304] ? fuse_rename2+0x4470/0x4470 [ 23.252270][ T304] ? do_filp_open+0x480/0x480 [ 23.256782][ T304] do_filp_open+0x230/0x480 [ 23.261128][ T304] ? vfs_tmpfile+0x480/0x480 [ 23.265562][ T304] ? alloc_fd+0x4fa/0x5a0 [ 23.269840][ T304] do_sys_openat2+0x13f/0x850 [ 23.274594][ T304] ? ptrace_stop+0x709/0x930 [ 23.279077][ T304] ? do_sys_open+0x220/0x220 [ 23.283449][ T304] ? _raw_spin_unlock_irq+0x4d/0x70 [ 23.288480][ T304] ? ptrace_notify+0x249/0x350 [ 23.293173][ T304] __x64_sys_creat+0x11f/0x160 [ 23.297765][ T304] ? __x64_compat_sys_openat+0x290/0x290 [ 23.303323][ T304] ? syscall_enter_from_user_mode+0x6a/0x190 [ 23.309239][ T304] do_syscall_64+0x3d/0xb0 [ 23.313471][ T304] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 23.319202][ T304] RIP: 0033:0x7f982460d419 [ 23.323463][ T304] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 b8 ff ff ff f7 d8 64 89 01 48 [ 23.342897][ T304] RSP: 002b:00007f98245be2e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 23.351222][ T304] RAX: ffffffffffffffda RBX: 00007f982469a4c0 RCX: 00007f982460d419 [ 23.359055][ T304] RDX: 00000000000002f0 RSI: 0000000000000000 RDI: 00000000200002c0 [ 23.370638][ T304] RBP: 00007f9824667264 R08: 0000000000000002 R09: 0000000000003331 [ 23.378714][ T304] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f982469a4c8 [ 23.386695][ T304] R13: 00007f98245be2f0 R14: 2f30656c69662f2e R15: 0000000000000002 [ 23.394515][ T304] [ 23.397635][ T304] general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN [ 23.409157][ T304] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 23.417398][ T304] CPU: 1 PID: 304 Comm: syz-executor193 Not tainted 6.1.25-syzkaller-00155-ged2a228522b9 #0 [ 23.427303][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 23.437376][ T304] RIP: 0010:fuse_file_put+0x11d/0x2420 [ 23.442667][ T304] Code: 01 00 00 00 89 de e8 02 0d 60 ff 83 fb 01 0f 85 ee 00 00 00 4d 8d 6c 24 28 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 65 25 a6 ff 4c 8d bc 24 c0 00 00 00 [ 23.462539][ T304] RSP: 0018:ffffc90000e46ea0 EFLAGS: 00010206 [ 23.468433][ T304] RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000 [ 23.476247][ T304] RDX: ffff88811af46540 RSI: 0000000000000001 RDI: 0000000000000001 [ 23.484149][ T304] RBP: ffffc90000e47240 R08: ffffffff8214db2e R09: ffffed1024401486 [ 23.491957][ T304] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 23.499776][ T304] R13: 0000000000000028 R14: ffff88812200a400 R15: ffff88812200a428 [ 23.507578][ T304] FS: 00007f98245be700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.516356][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.522881][ T304] CR2: 0000000020001140 CR3: 0000000109a54000 CR4: 00000000003506a0 [ 23.530910][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.538851][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.546828][ T304] Call Trace: [ 23.549952][ T304] [ 23.552732][ T304] ? nf_tcp_handle_invalid+0x3f1/0x3f1 [ 23.558109][ T304] ? __kasan_check_write+0x14/0x20 [ 23.563058][ T304] ? fuse_lock_owner_id+0x160/0x160 [ 23.568094][ T304] ? __kasan_check_write+0x14/0x20 [ 23.573041][ T304] ? should_fail_ex+0x29c/0x520 [ 23.577742][ T304] ? __kasan_check_write+0x14/0x20 [ 23.582847][ T304] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 23.588146][ T304] ? should_failslab+0x9/0x20 [ 23.592742][ T304] ? _raw_spin_lock+0x1b0/0x1b0 [ 23.597428][ T304] ? fuse_alloc_inode+0x30/0x200 [ 23.602228][ T304] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 23.607840][ T304] ? __wake_up+0x128/0x1c0 [ 23.612101][ T304] ? fuse_iget+0x7c0/0x7c0 [ 23.619391][ T304] ? __wake_up_bit+0x2b0/0x2b0 [ 23.624259][ T304] ? _raw_spin_trylock_bh+0x190/0x190 [ 23.629454][ T304] ? fuse_iget+0x48f/0x7c0 [ 23.633706][ T304] ? fuse_prepare_release+0x222/0x400 [ 23.638915][ T304] fuse_sync_release+0x81/0xb0 [ 23.643513][ T304] fuse_create_open+0x1bd3/0x3480 [ 23.648372][ T304] ? _raw_spin_trylock_bh+0x190/0x190 [ 23.653758][ T304] ? fuse_rename_common+0xb70/0xb70 [ 23.658897][ T304] ? security_compute_sid+0x1ddb/0x1f40 [ 23.664342][ T304] ? __mmu_notifier_release+0x586/0x620 [ 23.669815][ T304] ? avc_has_perm_noaudit+0x348/0x430 [ 23.675047][ T304] ? security_transition_sid+0x7d/0x90 [ 23.680421][ T304] ? may_create+0x65a/0x900 [ 23.684750][ T304] ? show_sid+0x270/0x270 [ 23.688993][ T304] ? make_kgid+0x6f0/0x6f0 [ 23.693244][ T304] fuse_atomic_open+0x22e/0x3a0 [ 23.697934][ T304] path_openat+0xf52/0x2d60 [ 23.702272][ T304] ? fuse_rename2+0x4470/0x4470 [ 23.706959][ T304] ? do_filp_open+0x480/0x480 [ 23.711471][ T304] do_filp_open+0x230/0x480 [ 23.715908][ T304] ? vfs_tmpfile+0x480/0x480 [ 23.720361][ T304] ? alloc_fd+0x4fa/0x5a0 [ 23.724498][ T304] do_sys_openat2+0x13f/0x850 [ 23.729290][ T304] ? ptrace_stop+0x709/0x930 [ 23.733691][ T304] ? do_sys_open+0x220/0x220 [ 23.738120][ T304] ? _raw_spin_unlock_irq+0x4d/0x70 [ 23.743236][ T304] ? ptrace_notify+0x249/0x350 [ 23.747836][ T304] __x64_sys_creat+0x11f/0x160 [ 23.752438][ T304] ? __x64_compat_sys_openat+0x290/0x290 [ 23.759326][ T304] ? syscall_enter_from_user_mode+0x6a/0x190 [ 23.766827][ T304] do_syscall_64+0x3d/0xb0 [ 23.771589][ T304] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 23.779625][ T304] RIP: 0033:0x7f982460d419 [ 23.784827][ T304] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 b8 ff ff ff f7 d8 64 89 01 48 [ 23.804872][ T304] RSP: 002b:00007f98245be2e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 [ 23.813195][ T304] RAX: ffffffffffffffda RBX: 00007f982469a4c0 RCX: 00007f982460d419 [ 23.821008][ T304] RDX: 00000000000002f0 RSI: 0000000000000000 RDI: 00000000200002c0 [ 23.828818][ T304] RBP: 00007f9824667264 R08: 0000000000000002 R09: 0000000000003331 [ 23.836637][ T304] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f982469a4c8 [ 23.844549][ T304] R13: 00007f98245be2f0 R14: 2f30656c69662f2e R15: 0000000000000002 [ 23.852360][ T304] [ 23.855303][ T304] Modules linked in: [ 23.859984][ T304] ---[ end trace 0000000000000000 ]--- [ 23.867923][ T304] RIP: 0010:fuse_file_put+0x11d/0x2420 [ 23.873449][ T304] Code: 01 00 00 00 89 de e8 02 0d 60 ff 83 fb 01 0f 85 ee 00 00 00 4d 8d 6c 24 28 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 65 25 a6 ff 4c 8d bc 24 c0 00 00 00 [ 23.893081][ T304] RSP: 0018:ffffc90000e46ea0 EFLAGS: 00010206 [ 23.899025][ T304] RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000 [ 23.906971][ T304] RDX: ffff88811af46540 RSI: 0000000000000001 RDI: 0000000000000001 [ 23.914933][ T304] RBP: ffffc90000e47240 R08: ffffffff8214db2e R09: ffffed1024401486 [ 23.922892][ T304] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 23.930798][ T304] R13: 0000000000000028 R14: ffff88812200a400 R15: ffff88812200a428 [ 23.938776][ T304] FS: 00007f98245be700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.947748][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.954411][ T304] CR2: 0000000020001140 CR3: 0000000109a54000 CR4: 00000000003506a0 [ 23.962361][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.970295][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.978391][ T304] Kernel panic - not syncing: Fatal exception [ 23.984701][ T304] Kernel Offset: disabled [ 23.988921][ T304] Rebooting in 86400 seconds..