./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor634794547 <...> Warning: Permanently added '10.128.1.112' (ED25519) to the list of known hosts. execve("./syz-executor634794547", ["./syz-executor634794547"], 0x7ffe5e274480 /* 10 vars */) = 0 brk(NULL) = 0x55557f344000 brk(0x55557f344d00) = 0x55557f344d00 arch_prctl(ARCH_SET_FS, 0x55557f344380) = 0 set_tid_address(0x55557f344650) = 5818 set_robust_list(0x55557f344660, 24) = 0 rseq(0x55557f344ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor634794547", 4096) = 27 getrandom("\x53\xf5\xd3\xa6\x8c\x8a\xff\x9f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557f344d00 brk(0x55557f365d00) = 0x55557f365d00 brk(0x55557f366000) = 0x55557f366000 mprotect(0x7f3c2598a000, 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 mkdir("./syzkaller.IyFYTk", 0700) = 0 chmod("./syzkaller.IyFYTk", 0777) = 0 chdir("./syzkaller.IyFYTk") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5820 attached , child_tidptr=0x55557f344650) = 5820 [pid 5820] set_robust_list(0x55557f344660, 24) = 0 [pid 5820] chdir("./0") = 0 [pid 5820] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5820] setpgid(0, 0) = 0 [pid 5820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5820] write(3, "1000", 4) = 4 [pid 5820] close(3) = 0 [pid 5820] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5820] write(1, "executing program\n", 18executing program ) = 18 [pid 5820] memfd_create("syzkaller", 0) = 3 [pid 5820] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3c1d400000 [pid 5820] write(3, "\xeb\x76\x90\x45\x58\x46\x41\x54\x20\x20\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\x01\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x08\x00\x00\x00\x88\x00\x00\x00\x0f\x00\x00\x00\x05\x00\x00\x00"..., 131072) = 131072 [pid 5820] munmap(0x7f3c1d400000, 138412032) = 0 [pid 5820] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5820] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5820] close(3) = 0 [pid 5820] close(4) = 0 [pid 5820] mkdir("./file0", 0777) = 0 [ 63.287265][ T5820] loop0: detected capacity change from 0 to 256 [ 63.336303][ T5820] ======================================================= [ 63.336303][ T5820] WARNING: The mand mount option has been deprecated and [ 63.336303][ T5820] and is ignored by this kernel. Remove the mand [ 63.336303][ T5820] option from the mount to silence this warning. [ 63.336303][ T5820] ======================================================= [pid 5820] mount("/dev/loop0", "./file0", "exfat", MS_NODEV|MS_NOEXEC|MS_MANDLOCK|MS_BORN, "") = 0 [pid 5820] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5820] chdir("./file0") = 0 [ 63.378671][ T5820] exFAT-fs (loop0): failed to load upcase table (idx : 0x0000e8a2, chksum : 0xd7c774f0, utbl_chksum : 0xe619d30d) [pid 5820] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5820] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = -1 EROFS (Read-only file system) [pid 5820] exit_group(0) = ? [pid 5820] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5820, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 63.435587][ T5820] exFAT-fs (loop0): error, in sector 160, dentry 8 should be unused, but 0xc1 [ 63.444731][ T5820] exFAT-fs (loop0): Filesystem has been set read-only newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55557f3456f0 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 [ 63.578491][ C0] ------------[ cut here ]------------ [ 63.584026][ C0] VFS: brelse: Trying to free free buffer [ 63.589901][ C0] WARNING: CPU: 0 PID: 0 at fs/buffer.c:1229 invalidate_bh_lru+0x102/0x1b0 [ 63.598549][ C0] Modules linked in: [ 63.602509][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc2-syzkaller-00333-ga0e3919a2df2 #0 [ 63.613286][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 63.623404][ C0] RIP: 0010:invalidate_bh_lru+0x102/0x1b0 [ 63.629188][ C0] Code: a4 30 dc ff f0 ff 0b eb 25 e8 da 56 78 ff 41 80 3c 2e 00 75 2a eb 30 e8 cc 56 78 ff 90 48 c7 c7 20 da 18 8c e8 9f ff 38 ff 90 <0f> 0b 90 90 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2e 00 74 08 4c [ 63.649087][ C0] RSP: 0018:ffffc90000007f30 EFLAGS: 00010046 [ 63.655560][ C0] RAX: 39104b07738bf400 RBX: ffff88807b7bb148 RCX: ffffffff8e6965c0 [ 63.663604][ C0] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 [ 63.671774][ C0] RBP: 0000000000000000 R08: ffffffff81600962 R09: 1ffff110170c519a [ 63.679788][ C0] R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff8880b8639838 [ 63.688058][ C0] R13: 0000000000000000 R14: 1ffff110170c7307 R15: ffff8880b8639838 [ 63.696297][ C0] FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 63.705598][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.712217][ C0] CR2: 00007ffcadb45dcc CR3: 000000007afd0000 CR4: 00000000003526f0 [ 63.720207][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.728182][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.736357][ C0] Call Trace: [ 63.739653][ C0] [ 63.742498][ C0] ? __warn+0x165/0x4d0 [ 63.746697][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 63.752093][ C0] ? report_bug+0x2b3/0x500 [ 63.756643][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 63.761797][ C0] ? handle_bug+0x60/0x90 [ 63.766241][ C0] ? exc_invalid_op+0x1a/0x50 [ 63.771073][ C0] ? asm_exc_invalid_op+0x1a/0x20 [ 63.776214][ C0] ? __warn_printk+0x292/0x360 [ 63.780982][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 63.786106][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 63.791659][ C0] __flush_smp_call_function_queue+0x3fc/0x1620 [ 63.797929][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 63.803397][ C0] __sysvec_call_function_single+0xb8/0x430 [ 63.810083][ C0] sysvec_call_function_single+0x9e/0xc0 [ 63.815739][ C0] [ 63.818719][ C0] [ 63.821803][ C0] asm_sysvec_call_function_single+0x1a/0x20 [ 63.828020][ C0] RIP: 0010:acpi_safe_halt+0x21/0x30 [ 63.833434][ C0] Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 80 d4 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 95 e6 a7 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 63.853187][ C0] RSP: 0018:ffffffff8e607ca8 EFLAGS: 00000246 [ 63.859331][ C0] RAX: ffffffff8e6965c0 RBX: ffff888143ee5064 RCX: 00000000000167c9 [ 63.867353][ C0] RDX: 0000000000000001 RSI: ffff888143ee5000 RDI: ffff888143ee5064 [ 63.875446][ C0] RBP: 000000000003a878 R08: ffff8880b8637cdb R09: 1ffff110170c6f9b [ 63.883459][ C0] R10: dffffc0000000000 R11: ffffffff8bc0ac00 R12: ffff888147e95800 [ 63.891552][ C0] R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f10e0e0 [ 63.899636][ C0] ? __pfx_acpi_idle_enter+0x10/0x10 [ 63.904936][ C0] acpi_idle_enter+0xe4/0x140 [ 63.909741][ C0] cpuidle_enter_state+0x109/0x470 [ 63.914944][ C0] ? __pfx_menu_select+0x10/0x10 [ 63.919887][ C0] cpuidle_enter+0x5d/0xa0 [ 63.924306][ C0] do_idle+0x372/0x5c0 [ 63.928390][ C0] ? __pfx___schedule+0x10/0x10 [ 63.933339][ C0] ? __pfx_do_idle+0x10/0x10 [ 63.937957][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 63.944106][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 63.950471][ C0] ? rest_init+0x31/0x300 [ 63.954809][ C0] ? rest_init+0x31/0x300 [ 63.959321][ C0] cpu_startup_entry+0x42/0x60 [ 63.964647][ C0] rest_init+0x2dc/0x300 [ 63.968980][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 63.974527][ C0] start_kernel+0x47f/0x500 [ 63.979043][ C0] x86_64_start_reservations+0x2a/0x30 [ 63.984620][ C0] x86_64_start_kernel+0x9f/0xa0 [ 63.989575][ C0] common_startup_64+0x13e/0x147 [ 63.994540][ C0] [ 63.997682][ C0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 64.005045][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc2-syzkaller-00333-ga0e3919a2df2 #0 [ 64.015383][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 [ 64.025654][ C0] Call Trace: [ 64.028944][ C0] [ 64.031881][ C0] dump_stack_lvl+0x241/0x360 [ 64.036601][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 64.041830][ C0] ? __pfx__printk+0x10/0x10 [ 64.046463][ C0] ? vscnprintf+0x5d/0x90 [ 64.050923][ C0] panic+0x349/0x880 [ 64.055404][ C0] ? __warn+0x174/0x4d0 [ 64.059602][ C0] ? __pfx_panic+0x10/0x10 [ 64.064054][ C0] ? common_startup_64+0x13e/0x147 [ 64.069207][ C0] __warn+0x344/0x4d0 [ 64.073228][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 64.078499][ C0] report_bug+0x2b3/0x500 [ 64.082871][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 64.088046][ C0] handle_bug+0x60/0x90 [ 64.092232][ C0] exc_invalid_op+0x1a/0x50 [ 64.096761][ C0] asm_exc_invalid_op+0x1a/0x20 [ 64.101648][ C0] RIP: 0010:invalidate_bh_lru+0x102/0x1b0 [ 64.107830][ C0] Code: a4 30 dc ff f0 ff 0b eb 25 e8 da 56 78 ff 41 80 3c 2e 00 75 2a eb 30 e8 cc 56 78 ff 90 48 c7 c7 20 da 18 8c e8 9f ff 38 ff 90 <0f> 0b 90 90 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2e 00 74 08 4c [ 64.127508][ C0] RSP: 0018:ffffc90000007f30 EFLAGS: 00010046 [ 64.133605][ C0] RAX: 39104b07738bf400 RBX: ffff88807b7bb148 RCX: ffffffff8e6965c0 [ 64.141620][ C0] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 [ 64.149623][ C0] RBP: 0000000000000000 R08: ffffffff81600962 R09: 1ffff110170c519a [ 64.157747][ C0] R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff8880b8639838 [ 64.165735][ C0] R13: 0000000000000000 R14: 1ffff110170c7307 R15: ffff8880b8639838 [ 64.173749][ C0] ? __warn_printk+0x292/0x360 [ 64.178581][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 64.184153][ C0] __flush_smp_call_function_queue+0x3fc/0x1620 [ 64.190709][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 64.196234][ C0] __sysvec_call_function_single+0xb8/0x430 [ 64.202238][ C0] sysvec_call_function_single+0x9e/0xc0 [ 64.207883][ C0] [ 64.210812][ C0] [ 64.213781][ C0] asm_sysvec_call_function_single+0x1a/0x20 [ 64.219816][ C0] RIP: 0010:acpi_safe_halt+0x21/0x30 [ 64.225144][ C0] Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 80 d4 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 95 e6 a7 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 64.244800][ C0] RSP: 0018:ffffffff8e607ca8 EFLAGS: 00000246 [ 64.250902][ C0] RAX: ffffffff8e6965c0 RBX: ffff888143ee5064 RCX: 00000000000167c9 [ 64.258995][ C0] RDX: 0000000000000001 RSI: ffff888143ee5000 RDI: ffff888143ee5064 [ 64.266982][ C0] RBP: 000000000003a878 R08: ffff8880b8637cdb R09: 1ffff110170c6f9b [ 64.274973][ C0] R10: dffffc0000000000 R11: ffffffff8bc0ac00 R12: ffff888147e95800 [ 64.282968][ C0] R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f10e0e0 [ 64.291067][ C0] ? __pfx_acpi_idle_enter+0x10/0x10 [ 64.296375][ C0] acpi_idle_enter+0xe4/0x140 [ 64.301053][ C0] cpuidle_enter_state+0x109/0x470 [ 64.306196][ C0] ? __pfx_menu_select+0x10/0x10 [ 64.311152][ C0] cpuidle_enter+0x5d/0xa0 [ 64.315575][ C0] do_idle+0x372/0x5c0 [ 64.319650][ C0] ? __pfx___schedule+0x10/0x10 [ 64.324517][ C0] ? __pfx_do_idle+0x10/0x10 [ 64.329141][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 64.335071][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 64.341422][ C0] ? rest_init+0x31/0x300 [ 64.345753][ C0] ? rest_init+0x31/0x300 [ 64.350540][ C0] cpu_startup_entry+0x42/0x60 [ 64.355347][ C0] rest_init+0x2dc/0x300 [ 64.359603][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 64.365148][ C0] start_kernel+0x47f/0x500 [ 64.369657][ C0] x86_64_start_reservations+0x2a/0x30 [ 64.375202][ C0] x86_64_start_kernel+0x9f/0xa0 [ 64.380174][ C0] common_startup_64+0x13e/0x147 [ 64.385159][ C0] [ 64.391346][ C0] Kernel Offset: disabled [ 64.395701][ C0] Rebooting in 86400 seconds..