./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4014459229 <...> Warning: Permanently added '10.128.0.93' (ED25519) to the list of known hosts. execve("./syz-executor4014459229", ["./syz-executor4014459229"], 0x7ffe77b4c490 /* 10 vars */) = 0 brk(NULL) = 0x555557069000 brk(0x555557069d40) = 0x555557069d40 arch_prctl(ARCH_SET_FS, 0x5555570693c0) = 0 set_tid_address(0x555557069690) = 287 set_robust_list(0x5555570696a0, 24) = 0 rseq(0x555557069ce0, 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-executor4014459229", 4096) = 28 getrandom("\x29\xb8\x28\xeb\xaa\x6b\xc8\xaa", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557069d40 brk(0x55555708ad40) = 0x55555708ad40 brk(0x55555708b000) = 0x55555708b000 mprotect(0x7fd1419fe000, 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=0x555557069690) = 288 ./strace-static-x86_64: Process 288 attached [pid 288] set_robust_list(0x5555570696a0, 24) = 0 [pid 288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 288] setpgid(0, 0) = 0 [pid 288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 288] write(3, "1000", 4) = 4 [pid 288] close(3) = 0 [pid 288] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 288] rt_sigaction(SIGRT_1, {sa_handler=0x7fd14199bee0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd14198d560}, NULL, 8) = 0 [pid 288] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd141916000 [pid 288] mprotect(0x7fd141917000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 288] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 288] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd141936990, parent_tid=0x7fd141936990, exit_signal=0, stack=0x7fd141916000, stack_size=0x20300, tls=0x7fd1419366c0}./strace-static-x86_64: Process 289 attached [pid 289] set_robust_list(0x7fd1419369a0, 24) = 0 [pid 289] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 289] futex(0x7fd141a043e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 288] <... clone3 resumed> => {parent_tid=[289]}, 88) = 289 [pid 288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 288] futex(0x7fd141a043e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 289] <... futex resumed>) = 0 [pid 288] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 289] mkdirat(AT_FDCWD, "./file0", 000) = 0 [pid 289] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 289] futex(0x7fd141a043e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 288] <... futex resumed>) = 0 [pid 288] futex(0x7fd141a043e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 288] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 289] <... futex resumed>) = 0 [pid 289] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3 [pid 289] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 289] futex(0x7fd141a043e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 288] <... futex resumed>) = 0 [pid 288] futex(0x7fd141a043e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 289] <... futex resumed>) = 0 [pid 289] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"... [pid 288] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 289] <... mount resumed>) = 0 [pid 289] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 288] <... futex resumed>) = 0 [pid 288] futex(0x7fd141a043e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 288] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 289] 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", 8224) = 56 [pid 289] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 288] <... futex resumed>) = 0 [pid 288] futex(0x7fd141a043e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 288] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 21.073725][ T24] audit: type=1400 audit(1691977785.439:66): avc: denied { execmem } for pid=287 comm="syz-executor401" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.086511][ T24] audit: type=1400 audit(1691977785.459:67): avc: denied { read write } for pid=288 comm="syz-executor401" name="fuse" dev="devtmpfs" ino=90 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 21.089868][ T24] audit: type=1400 audit(1691977785.459:68): avc: denied { open } for pid=288 comm="syz-executor401" path="/dev/fuse" dev="devtmpfs" ino=90 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 21.094156][ T24] audit: type=1400 audit(1691977785.459:69): avc: denied { mounton } for pid=288 comm="syz-executor401" 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 289] read(3, [pid 288] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 288] futex(0x7fd141a043fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd1418f5000 [pid 288] mprotect(0x7fd1418f6000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 288] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 288] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd141915990, parent_tid=0x7fd141915990, exit_signal=0, stack=0x7fd1418f5000, stack_size=0x20300, tls=0x7fd1419156c0} => {parent_tid=[291]}, 88) = 291 [pid 288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 288] futex(0x7fd141a043f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 288] futex(0x7fd141a043fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 291 attached [pid 291] set_robust_list(0x7fd1419159a0, 24) = 0 [pid 291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 291] 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 291] futex(0x7fd141a043fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 288] <... futex resumed>) = 0 [pid 288] futex(0x7fd141a043f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 288] futex(0x7fd141a043fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] <... futex resumed>) = 1 [ 21.116827][ T24] audit: type=1400 audit(1691977785.459:70): avc: denied { mount } for pid=288 comm="syz-executor401" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [pid 291] read(3, [pid 288] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 288] futex(0x7fd141a043fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 288] futex(0x7fd141a043fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 288] futex(0x7fd141a043fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 288] futex(0x7fd141a0440c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd1418d4000 [pid 288] mprotect(0x7fd1418d5000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 288] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 288] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd1418f4990, parent_tid=0x7fd1418f4990, exit_signal=0, stack=0x7fd1418d4000, stack_size=0x20300, tls=0x7fd1418f46c0}./strace-static-x86_64: Process 292 attached [pid 292] set_robust_list(0x7fd1418f49a0, 24 [pid 288] <... clone3 resumed> => {parent_tid=[292]}, 88) = 292 [pid 288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 288] futex(0x7fd141a04408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 288] futex(0x7fd141a0440c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... set_robust_list resumed>) = 0 [pid 292] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 292] futex(0x7fd141a0440c, FUTEX_WAKE_PRIVATE, 1000000 [pid 288] <... futex resumed>) = 0 [pid 288] futex(0x7fd141a04408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 288] futex(0x7fd141a0440c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... futex resumed>) = 1 [pid 292] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 292] write(4, "13", 2) = 2 [ 21.200386][ T292] FAULT_INJECTION: forcing a failure. [ 21.200386][ T292] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 21.213485][ T292] CPU: 1 PID: 292 Comm: syz-executor401 Not tainted 5.10.187-syzkaller-00057-g8a427269c016 #0 [ 21.223454][ T292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 21.233356][ T292] Call Trace: [ 21.236495][ T292] dump_stack_lvl+0x1e2/0x24b [ 21.240990][ T292] ? bfq_pos_tree_add_move+0x43b/0x43b [ 21.246373][ T292] dump_stack+0x15/0x17 [ 21.250361][ T292] should_fail+0x3c6/0x510 [ 21.254616][ T292] should_fail_alloc_page+0x52/0x60 [ 21.259657][ T292] __alloc_pages_nodemask+0x1b3/0xaf0 [ 21.264861][ T292] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 21.270243][ T292] new_slab+0x80/0x400 [ 21.274145][ T292] ___slab_alloc+0x302/0x4b0 [ 21.278571][ T292] ? unwind_get_return_address+0x4d/0x90 [ 21.284039][ T292] ? fuse_get_req+0x3b3/0xa80 [ 21.288553][ T292] __slab_alloc+0x63/0xa0 [ 21.292716][ T292] ? fuse_get_req+0x3b3/0xa80 [ 21.297239][ T292] ? fuse_get_req+0x3b3/0xa80 [ 21.301743][ T292] kmem_cache_alloc+0x1b9/0x2e0 [ 21.306428][ T292] ? fuse_get_req+0x3b3/0xa80 [ 21.310941][ T292] fuse_get_req+0x3b3/0xa80 [ 21.315284][ T292] ? fuse_simple_request+0x1a10/0x1a10 [ 21.320576][ T292] ? ____kasan_kmalloc+0xed/0x110 [ 21.325443][ T292] ? ____kasan_kmalloc+0xdb/0x110 [ 21.330310][ T292] ? __kasan_kmalloc+0x9/0x10 [ 21.334817][ T292] ? kmem_cache_alloc_trace+0x18a/0x2e0 [ 21.340203][ T292] ? fuse_alloc_forget+0x46/0x50 [ 21.344964][ T292] ? fuse_lookup_name+0x174/0xaa0 [ 21.349824][ T292] ? fuse_lookup+0x2da/0x2380 [ 21.354340][ T292] ? fuse_atomic_open+0x21c/0x31a0 [ 21.359285][ T292] ? path_openat+0xff0/0x3000 [ 21.363885][ T292] ? do_filp_open+0x21c/0x460 [ 21.368402][ T292] ? do_sys_openat2+0x13f/0x6f0 [ 21.373089][ T292] ? do_syscall_64+0x34/0x70 [ 21.377514][ T292] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.383414][ T292] fuse_simple_request+0x124/0x1a10 [ 21.388504][ T292] ? fuse_put_request+0x2d0/0x2d0 [ 21.393308][ T292] ? __kasan_kmalloc+0x9/0x10 [ 21.397818][ T292] ? kmem_cache_alloc_trace+0x18a/0x2e0 [ 21.403200][ T292] fuse_lookup_name+0x3e8/0xaa0 [ 21.407900][ T292] ? fuse_invalid_attr+0x110/0x110 [ 21.412840][ T292] ? __kasan_check_write+0x14/0x20 [ 21.417784][ T292] ? mutex_lock+0xa5/0x110 [ 21.422034][ T292] ? mutex_trylock+0xa0/0xa0 [ 21.426467][ T292] ? unwind_next_frame+0x3cb/0x700 [ 21.431409][ T292] fuse_lookup+0x2da/0x2380 [ 21.435750][ T292] ? fuse_perm_getattr+0x60/0x60 [ 21.440525][ T292] ? arch_stack_walk+0xf3/0x140 [ 21.445215][ T292] ? __kasan_slab_alloc+0xc3/0xe0 [ 21.450067][ T292] ? __kasan_slab_alloc+0xb1/0xe0 [ 21.455023][ T292] ? slab_post_alloc_hook+0x61/0x2f0 [ 21.460138][ T292] ? kmem_cache_alloc+0x168/0x2e0 [ 21.464997][ T292] ? avc_alloc_node+0x7e/0x360 [ 21.469596][ T292] ? avc_compute_av+0x136/0x690 [ 21.474282][ T292] ? avc_has_perm+0x30e/0x400 [ 21.478797][ T292] ? may_create+0x65a/0x900 [ 21.483134][ T292] ? selinux_inode_create+0x22/0x30 [ 21.488171][ T292] ? security_inode_create+0xac/0x100 [ 21.493377][ T292] ? path_openat+0xe21/0x3000 [ 21.497890][ T292] ? do_filp_open+0x21c/0x460 [ 21.502407][ T292] ? do_sys_openat2+0x13f/0x6f0 [ 21.507106][ T292] ? __x64_sys_openat+0x243/0x290 [ 21.511972][ T292] ? do_syscall_64+0x34/0x70 [ 21.516380][ T292] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.522285][ T292] fuse_atomic_open+0x21c/0x31a0 [ 21.527053][ T292] ? fuse_rename2+0x4420/0x4420 [ 21.531741][ T292] ? avc_alloc_node+0x7e/0x360 [ 21.536340][ T292] ? __kasan_check_write+0x14/0x20 [ 21.541288][ T292] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 21.546582][ T292] ? _raw_spin_lock+0x1b0/0x1b0 [ 21.551272][ T292] ? avc_xperms_populate+0x4c7/0x590 [ 21.556399][ T292] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 21.562032][ T292] ? avc_compute_av+0x4cc/0x690 [ 21.566716][ T292] ? avc_has_perm+0x275/0x400 [ 21.571232][ T292] ? avc_has_perm_noaudit+0x240/0x240 [ 21.576448][ T292] ? avc_has_perm_noaudit+0x158/0x240 [ 21.581661][ T292] ? security_transition_sid+0x7d/0x90 [ 21.586942][ T292] ? may_create+0x65a/0x900 [ 21.591281][ T292] ? show_sid+0x250/0x250 [ 21.595463][ T292] ? d_hash_and_lookup+0x1e0/0x1e0 [ 21.600391][ T292] ? from_kgid+0x1a3/0x730 [ 21.604644][ T292] ? selinux_inode_create+0x22/0x30 [ 21.609684][ T292] ? security_inode_create+0xbc/0x100 [ 21.614886][ T292] ? fuse_rename2+0x4420/0x4420 [ 21.619659][ T292] path_openat+0xff0/0x3000 [ 21.623997][ T292] ? update_load_avg+0x541/0x1690 [ 21.628862][ T292] ? do_filp_open+0x460/0x460 [ 21.633374][ T292] do_filp_open+0x21c/0x460 [ 21.637712][ T292] ? vfs_tmpfile+0x2b0/0x2b0 [ 21.642141][ T292] ? get_unused_fd_flags+0x94/0xa0 [ 21.647087][ T292] do_sys_openat2+0x13f/0x6f0 [ 21.651599][ T292] ? cgroup_leave_frozen+0x164/0x2c0 [ 21.656719][ T292] ? ptrace_stop+0x6dc/0xa30 [ 21.661147][ T292] ? do_sys_open+0x220/0x220 [ 21.665572][ T292] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.670608][ T292] ? ptrace_notify+0x24c/0x350 [ 21.675208][ T292] __x64_sys_openat+0x243/0x290 [ 21.679896][ T292] ? __ia32_sys_open+0x270/0x270 [ 21.684669][ T292] ? syscall_enter_from_user_mode+0x57/0x1a0 [ 21.690483][ T292] do_syscall_64+0x34/0x70 [ 21.694758][ T292] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.700476][ T292] RIP: 0033:0x7fd141975fa9 [ 21.704716][ T292] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 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 [ 21.724157][ T292] RSP: 002b:00007fd1418f4208 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 21.732399][ T292] RAX: ffffffffffffffda RBX: 00007fd141a04408 RCX: 00007fd141975fa9 [ 21.740214][ T292] RDX: 0000000000000c41 RSI: 0000000020002000 RDI: ffffffffffffff9c [pid 292] openat(AT_FDCWD, "./file0/file0", O_WRONLY|O_CREAT|O_APPEND|O_NONBLOCK, 000 [pid 289] <... 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\x24\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [pid 289] 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 [pid 288] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 289] <... write resumed>) = 144 [pid 289] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 289] futex(0x7fd141a043e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 291] <... read resumed>"\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\x24\x01\x00\x00\x00\x00\x00\x00\x41\x8c\x00\x00\x00\x80\x00\x00\x3f\x00\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 62 [pid 291] write(3, "\xa0\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x04\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 291] futex(0x7fd141a043fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 21.748022][ T292] RBP: 00007fd141a04400 R08: 00007fd1418f3fa6 R09: 0000000000003331 [ 21.755833][ T292] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd1419d122c [ 21.763647][ T292] R13: 00007fd1418f4210 R14: 0000000000000002 R15: 2f30656c69662f2e [pid 291] futex(0x7fd141a043f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 288] exit_group(0 [pid 292] <... openat resumed>) = ? [pid 289] <... futex resumed>) = ? [pid 288] <... exit_group resumed>) = ? [pid 292] +++ exited with 0 +++ [pid 291] <... futex resumed>) = ? [pid 289] +++ exited with 0 +++ [pid 287] kill(-288, SIGKILL) = 0 [pid 287] kill(288, SIGKILL) = 0 [pid 287] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 287] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 287] getdents64(3, 0x55555706a730 /* 3 entries */, 32768) = 72 [pid 287] openat(AT_FDCWD, "/sys/fs/fuse/connections/27/abort", O_WRONLY) = 4 [pid 287] write(4, "/", 1) = 1 [pid 291] +++ exited with 0 +++ [pid 288] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=288, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- close(4) = 0 getdents64(3, 0x55555706a730 /* 0 entries */, 32768) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 298 attached , child_tidptr=0x555557069690) = 298 [pid 298] set_robust_list(0x5555570696a0, 24) = 0 [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] setpgid(0, 0) = 0 [pid 298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 298] write(3, "1000", 4) = 4 [pid 298] close(3) = 0 [pid 298] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] rt_sigaction(SIGRT_1, {sa_handler=0x7fd14199bee0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd14198d560}, NULL, 8) = 0 [pid 298] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd141916000 [pid 298] mprotect(0x7fd141917000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd141936990, parent_tid=0x7fd141936990, exit_signal=0, stack=0x7fd141916000, stack_size=0x20300, tls=0x7fd1419366c0} => {parent_tid=[299]}, 88) = 299 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] futex(0x7fd141a043e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 299 attached [pid 299] set_robust_list(0x7fd1419369a0, 24) = 0 [pid 299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 299] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists) [pid 299] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fd141a043e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] <... futex resumed>) = 1 [pid 299] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3 [pid 299] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fd141a043e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] <... futex resumed>) = 1 [pid 299] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [pid 299] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fd141a043e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] <... futex resumed>) = 1 [pid 299] 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", 8224) = 56 [pid 299] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fd141a043e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] <... futex resumed>) = 1 [pid 299] read(3, [pid 298] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 298] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 298] futex(0x7fd141a043ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 298] futex(0x7fd141a043fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd1418f5000 [pid 298] mprotect(0x7fd1418f6000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd141915990, parent_tid=0x7fd141915990, exit_signal=0, stack=0x7fd1418f5000, stack_size=0x20300, tls=0x7fd1419156c0}./strace-static-x86_64: Process 302 attached => {parent_tid=[302]}, 88) = 302 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] futex(0x7fd141a043f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fd141a043fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] set_robust_list(0x7fd1419159a0, 24) = 0 [pid 302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 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\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 302] futex(0x7fd141a043fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fd141a043f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fd141a043fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 26.198047][ T24] audit: type=1400 audit(1691977790.569:71): avc: denied { mounton } for pid=298 comm="syz-executor401" 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] read(3, [pid 298] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 298] futex(0x7fd141a043fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 298] futex(0x7fd141a043fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 298] futex(0x7fd141a0440c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd1418d4000 [pid 298] mprotect(0x7fd1418d5000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 298] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 298] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd1418f4990, parent_tid=0x7fd1418f4990, exit_signal=0, stack=0x7fd1418d4000, stack_size=0x20300, tls=0x7fd1418f46c0}./strace-static-x86_64: Process 303 attached => {parent_tid=[303]}, 88) = 303 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] futex(0x7fd141a04408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fd141a0440c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 303] set_robust_list(0x7fd1418f49a0, 24) = 0 [pid 303] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 303] futex(0x7fd141a0440c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 298] <... futex resumed>) = 0 [pid 298] futex(0x7fd141a04408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 298] futex(0x7fd141a0440c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 303] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 303] write(4, "13", 2) = 2 [pid 303] openat(AT_FDCWD, "./file0/file0", O_WRONLY|O_CREAT|O_APPEND|O_NONBLOCK, 000 [pid 299] <... 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\x2f\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [pid 299] 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 299] futex(0x7fd141a043ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... read resumed>"\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\x2f\x01\x00\x00\x00\x00\x00\x00\x41\x8c\x00\x00\x00\x80\x00\x00\x3f\x00\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 62 [pid 299] <... futex resumed>) = 0 [pid 302] write(3, "\xa0\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x04\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\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 [pid 299] futex(0x7fd141a043e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 302] <... write resumed>) = 160 [pid 302] futex(0x7fd141a043fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 302] futex(0x7fd141a043f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 298] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 298] futex(0x7fd141a0440c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [ 26.309420][ T303] FAULT_INJECTION: forcing a failure. [ 26.309420][ T303] name failslab, interval 1, probability 0, space 0, times 1 [ 26.321919][ T303] CPU: 1 PID: 303 Comm: syz-executor401 Not tainted 5.10.187-syzkaller-00057-g8a427269c016 #0 [ 26.331968][ T303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 26.341859][ T303] Call Trace: [ 26.344994][ T303] dump_stack_lvl+0x1e2/0x24b [ 26.349498][ T303] ? panic+0x80b/0x80b [ 26.353401][ T303] ? bfq_pos_tree_add_move+0x43b/0x43b [ 26.358708][ T303] ? find_inode+0x37e/0x430 [ 26.363046][ T303] ? prepare_to_wait_event+0x41a/0x480 [ 26.368337][ T303] dump_stack+0x15/0x17 [ 26.372336][ T303] should_fail+0x3c6/0x510 [ 26.376576][ T303] ? fuse_alloc_inode+0x23/0x210 [ 26.381351][ T303] __should_failslab+0xa4/0xe0 [ 26.385951][ T303] should_failslab+0x9/0x20 [ 26.390294][ T303] kmem_cache_alloc+0x3d/0x2e0 [ 26.394890][ T303] ? sanitize_global_limit+0x140/0x140 [ 26.400188][ T303] ? fuse_iget+0x7b0/0x7b0 [ 26.404438][ T303] ? fuse_inode_eq+0x80/0x80 [ 26.408865][ T303] fuse_alloc_inode+0x23/0x210 [ 26.413464][ T303] ? sanitize_global_limit+0x140/0x140 [ 26.418757][ T303] ? fuse_iget+0x7b0/0x7b0 [ 26.423012][ T303] ? fuse_inode_eq+0x80/0x80 [ 26.427438][ T303] iget5_locked+0xba/0x280 [ 26.431699][ T303] ? fuse_inode_eq+0x80/0x80 [ 26.436115][ T303] fuse_iget+0x291/0x7b0 [ 26.440198][ T303] ? fuse_init_inode+0x310/0x310 [ 26.444968][ T303] ? fuse_passthrough_setup+0x93/0x190 [ 26.450271][ T303] fuse_atomic_open+0xf43/0x31a0 [pid 298] exit_group(0 [pid 302] <... futex resumed>) = ? [pid 299] <... futex resumed>) = ? [pid 298] <... exit_group resumed>) = ? [pid 302] +++ exited with 0 +++ [pid 299] +++ exited with 0 +++ [ 26.455044][ T303] ? policydb_context_isvalid+0x1c3/0x430 [ 26.460592][ T303] ? fuse_rename2+0x4420/0x4420 [ 26.465287][ T303] ? may_create+0x65a/0x900 [ 26.469619][ T303] ? show_sid+0x250/0x250 [ 26.473783][ T303] ? d_hash_and_lookup+0x1e0/0x1e0 [ 26.478742][ T303] ? from_kgid+0x1a3/0x730 [ 26.482986][ T303] ? selinux_inode_create+0x22/0x30 [ 26.488017][ T303] ? security_inode_create+0xbc/0x100 [ 26.493225][ T303] ? fuse_rename2+0x4420/0x4420 [ 26.497938][ T303] path_openat+0xff0/0x3000 [ 26.502259][ T303] ? update_load_avg+0x541/0x1690 [ 26.507125][ T303] ? do_filp_open+0x460/0x460 [ 26.511626][ T303] do_filp_open+0x21c/0x460 [ 26.515972][ T303] ? vfs_tmpfile+0x2b0/0x2b0 [ 26.520393][ T303] ? get_unused_fd_flags+0x94/0xa0 [ 26.525340][ T303] do_sys_openat2+0x13f/0x6f0 [ 26.529853][ T303] ? cgroup_leave_frozen+0x164/0x2c0 [ 26.534972][ T303] ? ptrace_stop+0x6dc/0xa30 [ 26.539398][ T303] ? do_sys_open+0x220/0x220 [ 26.543823][ T303] ? _raw_spin_unlock_irq+0x4e/0x70 [ 26.548868][ T303] ? ptrace_notify+0x24c/0x350 [ 26.553471][ T303] __x64_sys_openat+0x243/0x290 [ 26.558159][ T303] ? __ia32_sys_open+0x270/0x270 [ 26.562918][ T303] ? syscall_enter_from_user_mode+0x57/0x1a0 [ 26.568734][ T303] do_syscall_64+0x34/0x70 [ 26.573002][ T303] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 26.578714][ T303] RIP: 0033:0x7fd141975fa9 [ 26.582965][ T303] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 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 [ 26.602408][ T303] RSP: 002b:00007fd1418f4208 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 26.610654][ T303] RAX: ffffffffffffffda RBX: 00007fd141a04408 RCX: 00007fd141975fa9 [ 26.618550][ T303] RDX: 0000000000000c41 RSI: 0000000020002000 RDI: ffffffffffffff9c [ 26.626359][ T303] RBP: 00007fd141a04400 R08: 00007fd1418f3fa6 R09: 0000000000003331 [ 26.634172][ T303] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd1419d122c [ 26.641984][ T303] R13: 00007fd1418f4210 R14: 0000000000000002 R15: 2f30656c69662f2e [ 26.649961][ T303] general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN [ 26.661467][ T303] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 26.669710][ T303] CPU: 1 PID: 303 Comm: syz-executor401 Not tainted 5.10.187-syzkaller-00057-g8a427269c016 #0 [ 26.679770][ T303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 26.689677][ T303] RIP: 0010:fuse_file_put+0x11d/0x2310 [ 26.694963][ T303] Code: 01 00 00 00 89 de e8 e2 79 6c 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 d5 a4 a9 ff 4c 8d bc 24 c0 00 00 00 [ 26.714403][ T303] RSP: 0018:ffffc90000c16f00 EFLAGS: 00010206 [ 26.720303][ T303] RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000 [ 26.728116][ T303] RDX: ffff88811e7ca780 RSI: 0000000000000001 RDI: 0000000000000001 [ 26.735928][ T303] RBP: ffffc90000c172a0 R08: ffffffff81fe176e R09: ffffed1023cd4906 [ 26.743739][ T303] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 26.751549][ T303] R13: 0000000000000028 R14: ffff88811e6a4800 R15: ffff88811e6a4828 [ 26.759360][ T303] FS: 00007fd1418f46c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 26.768125][ T303] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.774547][ T303] CR2: 00007fd1418f3fe8 CR3: 000000011e50d000 CR4: 00000000003506a0 [ 26.782363][ T303] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.790170][ T303] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.797978][ T303] Call Trace: [ 26.801116][ T303] ? __die_body+0x62/0xb0 [ 26.805275][ T303] ? die_addr+0x9f/0xd0 [ 26.809272][ T303] ? exc_general_protection+0x3ff/0x490 [ 26.814652][ T303] ? preempt_schedule_irq+0xe7/0x140 [ 26.819790][ T303] ? asm_exc_general_protection+0x1e/0x30 [ 26.825518][ T303] ? fuse_file_put+0xfe/0x2310 [ 26.830186][ T303] ? fuse_file_put+0x11d/0x2310 [ 26.834875][ T303] ? dump_stack_lvl+0x1f3/0x24b [ 26.839559][ T303] ? dump_stack_lvl+0x211/0x24b [ 26.844247][ T303] ? fuse_lock_owner_id+0x160/0x160 [ 26.849279][ T303] ? bfq_pos_tree_add_move+0x43b/0x43b [ 26.854573][ T303] ? find_inode+0x37e/0x430 [ 26.858915][ T303] ? prepare_to_wait_event+0x41a/0x480 [ 26.864210][ T303] ? __kasan_check_write+0x14/0x20 [ 26.869156][ T303] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 26.874448][ T303] ? _raw_spin_lock+0x1b0/0x1b0 [ 26.879138][ T303] ? __should_failslab+0xa4/0xe0 [ 26.883909][ T303] ? should_failslab+0x9/0x20 [ 26.888422][ T303] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 26.894061][ T303] ? __wake_up+0x120/0x1c0 [ 26.898316][ T303] ? fuse_iget+0x7b0/0x7b0 [ 26.902570][ T303] ? remove_wait_queue+0x140/0x140 [ 26.907519][ T303] ? _raw_spin_trylock_bh+0x190/0x190 [ 26.912727][ T303] ? fuse_iget+0x47a/0x7b0 [ 26.916976][ T303] ? fuse_prepare_release+0x222/0x400 [ 26.922186][ T303] fuse_sync_release+0x81/0xb0 [ 26.927046][ T303] fuse_atomic_open+0x26d7/0x31a0 [ 26.931921][ T303] ? policydb_context_isvalid+0x1c3/0x430 [ 26.937461][ T303] ? fuse_rename2+0x4420/0x4420 [ 26.942155][ T303] ? may_create+0x65a/0x900 [ 26.946487][ T303] ? show_sid+0x250/0x250 [ 26.950652][ T303] ? d_hash_and_lookup+0x1e0/0x1e0 [ 26.955599][ T303] ? from_kgid+0x1a3/0x730 [ 26.959852][ T303] ? selinux_inode_create+0x22/0x30 [ 26.964886][ T303] ? security_inode_create+0xbc/0x100 [ 26.970094][ T303] ? fuse_rename2+0x4420/0x4420 [ 26.974779][ T303] path_openat+0xff0/0x3000 [ 26.979120][ T303] ? update_load_avg+0x541/0x1690 [ 26.983985][ T303] ? do_filp_open+0x460/0x460 [ 26.988493][ T303] do_filp_open+0x21c/0x460 [ 26.992848][ T303] ? vfs_tmpfile+0x2b0/0x2b0 [ 26.997264][ T303] ? get_unused_fd_flags+0x94/0xa0 [ 27.002207][ T303] do_sys_openat2+0x13f/0x6f0 [ 27.006739][ T303] ? cgroup_leave_frozen+0x164/0x2c0 [ 27.011841][ T303] ? ptrace_stop+0x6dc/0xa30 [ 27.016267][ T303] ? do_sys_open+0x220/0x220 [ 27.020692][ T303] ? _raw_spin_unlock_irq+0x4e/0x70 [ 27.025726][ T303] ? ptrace_notify+0x24c/0x350 [ 27.030328][ T303] __x64_sys_openat+0x243/0x290 [ 27.035013][ T303] ? __ia32_sys_open+0x270/0x270 [ 27.039790][ T303] ? syscall_enter_from_user_mode+0x57/0x1a0 [ 27.045600][ T303] do_syscall_64+0x34/0x70 [ 27.049859][ T303] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 27.055581][ T303] RIP: 0033:0x7fd141975fa9 [ 27.059836][ T303] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 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 [ 27.079276][ T303] RSP: 002b:00007fd1418f4208 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 27.087522][ T303] RAX: ffffffffffffffda RBX: 00007fd141a04408 RCX: 00007fd141975fa9 [ 27.095417][ T303] RDX: 0000000000000c41 RSI: 0000000020002000 RDI: ffffffffffffff9c [ 27.103230][ T303] RBP: 00007fd141a04400 R08: 00007fd1418f3fa6 R09: 0000000000003331 [ 27.111043][ T303] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd1419d122c [ 27.118851][ T303] R13: 00007fd1418f4210 R14: 0000000000000002 R15: 2f30656c69662f2e [ 27.126666][ T303] Modules linked in: [ 27.130624][ T303] ---[ end trace 4a710b76a10e457f ]--- [ 27.136046][ T303] RIP: 0010:fuse_file_put+0x11d/0x2310 [ 27.141302][ T303] Code: 01 00 00 00 89 de e8 e2 79 6c 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 d5 a4 a9 ff 4c 8d bc 24 c0 00 00 00 [ 27.160808][ T303] RSP: 0018:ffffc90000c16f00 EFLAGS: 00010206 [ 27.166750][ T303] RAX: 0000000000000005 RBX: 0000000000000001 RCX: dffffc0000000000 [ 27.174544][ T303] RDX: ffff88811e7ca780 RSI: 0000000000000001 RDI: 0000000000000001 [ 27.182386][ T303] RBP: ffffc90000c172a0 R08: ffffffff81fe176e R09: ffffed1023cd4906 [ 27.190185][ T303] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 27.198019][ T303] R13: 0000000000000028 R14: ffff88811e6a4800 R15: ffff88811e6a4828 [ 27.205791][ T303] FS: 00007fd1418f46c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 27.214592][ T303] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.221006][ T303] CR2: 00007fd1419cc638 CR3: 000000011e50d000 CR4: 00000000003506b0 [ 27.228804][ T303] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.236625][ T303] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.244549][ T303] Kernel panic - not syncing: Fatal exception [ 27.250567][ T303] Kernel Offset: disabled [ 27.254692][ T303] Rebooting in 86400 seconds..