./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4257353294 <...> Warning: Permanently added '10.128.0.244' (ED25519) to the list of known hosts. execve("./syz-executor4257353294", ["./syz-executor4257353294"], 0x7ffe5706cca0 /* 10 vars */) = 0 brk(NULL) = 0x555585a64000 brk(0x555585a64e00) = 0x555585a64e00 arch_prctl(ARCH_SET_FS, 0x555585a64480) = 0 set_tid_address(0x555585a64750) = 5236 set_robust_list(0x555585a64760, 24) = 0 rseq(0x555585a64da0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4257353294", 4096) = 28 getrandom("\xc4\xb2\x89\x7f\xf6\xb0\x39\xf5", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555585a64e00 brk(0x555585a85e00) = 0x555585a85e00 brk(0x555585a86000) = 0x555585a86000 mprotect(0x7f11d04b9000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f11d0408ad0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f11d0410a70}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f11d0408ad0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f11d0410a70}, NULL, 8) = 0 executing program write(1, "executing program\n", 18) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f11c7e00000 write(3, "\xb5\x84\x31\x7b\xb6\x84\x31\x7b\xb7\x84\x31\x7b\xb8\x84\x31\x7b\xb9\x84\x31\x7b\xba\x84\x31\x7b\xbb\x84\x31\x7b\xbc\x84\x31\x7b\xbd\x84\x31\x7b\xbe\x84\x31\x7b\xbf\x84\x31\x7b\xc0\x84\x31\x7b\xc1\x84\x31\x7b\xc2\x84\x31\x7b\xc3\x84\x31\x7b\xc4\x84\x31\x7b\xc5\x84\x31\x7b\xc6\x84\x31\x7b\xc7\x84\x31\x7b\xc8\x84\x31\x7b\xc9\x84\x31\x7b\xca\x84\x31\x7b\xcb\x84\x31\x7b\xcc\x84\x31\x7b\xcd\x84\x31\x7b"..., 65536) = 65536 munmap(0x7f11c7e00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file0", 0777) = 0 [ 56.073281][ T5236] loop0: detected capacity change from 0 to 128 [ 56.109735][ T5236] VFS: Found a Xenix FS (block size = 1024) on device loop0 [ 56.117589][ T5236] Bad inode number on dev loop0: 2 is out of range [ 56.124110][ T5236] SysV FS: get root inode failed [ 56.129547][ T5236] oldfs: cannot read superblock [ 56.134589][ C0] ------------[ cut here ]------------ [ 56.140084][ C0] VFS: brelse: Trying to free free buffer [ 56.145913][ C0] WARNING: CPU: 0 PID: 0 at fs/buffer.c:1235 invalidate_bh_lru+0x102/0x1b0 [ 56.154533][ C0] Modules linked in: [ 56.158446][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc3-next-20241016-syzkaller #0 [ 56.168258][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 56.178337][ C0] RIP: 0010:invalidate_bh_lru+0x102/0x1b0 [ 56.184080][ C0] Code: b4 03 db ff f0 ff 0b eb 25 e8 6a 22 71 ff 41 80 3c 2e 00 75 2a eb 30 e8 5c 22 71 ff 90 48 c7 c7 a0 9e 19 8c e8 1f 15 32 ff 90 <0f> 0b 90 90 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2e 00 74 08 4c [ 56.203688][ C0] RSP: 0018:ffffc90000007f30 EFLAGS: 00010046 [ 56.209755][ C0] RAX: b355a416f85e0500 RBX: ffff88806f34b318 RCX: ffffffff8e6945c0 [ 56.217721][ C0] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 [ 56.225684][ C0] RBP: 0000000000000000 R08: ffffffff8155d7b2 R09: fffffbfff1cfa3e0 [ 56.233647][ C0] R10: dffffc0000000000 R11: fffffbfff1cfa3e0 R12: ffff8880b8639568 [ 56.241619][ C0] R13: 0000000000000000 R14: 1ffff110170c72ad R15: ffff8880b8639568 [ 56.249584][ C0] FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 56.258527][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.265108][ C0] CR2: 00007ffdf891fdc8 CR3: 000000007d0d4000 CR4: 00000000003526f0 [ 56.273081][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.281063][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.289027][ C0] Call Trace: [ 56.292302][ C0] [ 56.295143][ C0] ? __warn+0x168/0x4e0 [ 56.299298][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 56.304414][ C0] ? report_bug+0x2b3/0x500 [ 56.308933][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 56.314129][ C0] ? handle_bug+0x60/0x90 [ 56.318455][ C0] ? exc_invalid_op+0x1a/0x50 [ 56.323125][ C0] ? asm_exc_invalid_op+0x1a/0x20 [ 56.328144][ C0] ? __warn_printk+0x292/0x360 [ 56.332900][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 56.338007][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 56.343463][ C0] __flush_smp_call_function_queue+0x3fc/0x1690 [ 56.349696][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 56.355150][ C0] __sysvec_call_function_single+0xb8/0x430 [ 56.361078][ C0] sysvec_call_function_single+0x9e/0xc0 [ 56.366710][ C0] [ 56.369632][ C0] [ 56.372558][ C0] asm_sysvec_call_function_single+0x1a/0x20 [ 56.378533][ C0] RIP: 0010:acpi_safe_halt+0x21/0x30 [ 56.383815][ C0] Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 00 d4 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 35 81 9e 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 [ 56.403419][ C0] RSP: 0018:ffffffff8e607ca8 EFLAGS: 00000246 [ 56.409480][ C0] RAX: ffffffff8e6945c0 RBX: ffff8880206e5064 RCX: 0000000000015e99 [ 56.417444][ C0] RDX: 0000000000000001 RSI: ffff8880206e5000 RDI: ffff8880206e5064 [ 56.425427][ C0] RBP: 000000000003a5b8 R08: ffff8880b8637a7b R09: 1ffff110170c6f4f [ 56.433416][ C0] R10: dffffc0000000000 R11: ffffffff8bcc6540 R12: ffff888145e8e000 [ 56.441392][ C0] R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f1343a0 [ 56.449734][ C0] ? __pfx_acpi_idle_enter+0x10/0x10 [ 56.455048][ C0] acpi_idle_enter+0xe4/0x140 [ 56.459719][ C0] cpuidle_enter_state+0x109/0x470 [ 56.464824][ C0] ? __pfx_menu_select+0x10/0x10 [ 56.469757][ C0] cpuidle_enter+0x5d/0xa0 [ 56.474174][ C0] do_idle+0x375/0x5d0 [ 56.478245][ C0] ? __pfx_do_idle+0x10/0x10 [ 56.482838][ C0] ? rest_init+0x30/0x300 [ 56.487173][ C0] ? rest_init+0x31/0x300 [ 56.491496][ C0] cpu_startup_entry+0x42/0x60 [ 56.496255][ C0] rest_init+0x2dc/0x300 [ 56.500492][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 56.506035][ C0] start_kernel+0x47f/0x500 [ 56.510539][ C0] x86_64_start_reservations+0x2a/0x30 [ 56.515991][ C0] x86_64_start_kernel+0x9f/0xa0 [ 56.520924][ C0] common_startup_64+0x13e/0x147 [ 56.525865][ C0] [ 56.528881][ C0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 56.536148][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc3-next-20241016-syzkaller #0 [ 56.545943][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 56.556008][ C0] Call Trace: [ 56.559285][ C0] [ 56.562123][ C0] dump_stack_lvl+0x241/0x360 [ 56.566799][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 56.571994][ C0] ? __pfx__printk+0x10/0x10 [ 56.576581][ C0] ? _printk+0xd5/0x120 [ 56.580732][ C0] ? __init_begin+0x41000/0x41000 [ 56.585750][ C0] ? vscnprintf+0x5d/0x90 [ 56.590077][ C0] panic+0x349/0x880 [ 56.593975][ C0] ? __warn+0x177/0x4e0 [ 56.598129][ C0] ? __pfx_panic+0x10/0x10 [ 56.602539][ C0] ? show_trace_log_lvl+0x3b2/0x410 [ 56.607736][ C0] ? common_startup_64+0x13e/0x147 [ 56.612843][ C0] __warn+0x34b/0x4e0 [ 56.616816][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 56.621924][ C0] report_bug+0x2b3/0x500 [ 56.626249][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 56.631361][ C0] handle_bug+0x60/0x90 [ 56.635513][ C0] exc_invalid_op+0x1a/0x50 [ 56.640011][ C0] asm_exc_invalid_op+0x1a/0x20 [ 56.644854][ C0] RIP: 0010:invalidate_bh_lru+0x102/0x1b0 [ 56.650576][ C0] Code: b4 03 db ff f0 ff 0b eb 25 e8 6a 22 71 ff 41 80 3c 2e 00 75 2a eb 30 e8 5c 22 71 ff 90 48 c7 c7 a0 9e 19 8c e8 1f 15 32 ff 90 <0f> 0b 90 90 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2e 00 74 08 4c [ 56.670177][ C0] RSP: 0018:ffffc90000007f30 EFLAGS: 00010046 [ 56.676245][ C0] RAX: b355a416f85e0500 RBX: ffff88806f34b318 RCX: ffffffff8e6945c0 [ 56.684210][ C0] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 [ 56.692180][ C0] RBP: 0000000000000000 R08: ffffffff8155d7b2 R09: fffffbfff1cfa3e0 [ 56.700144][ C0] R10: dffffc0000000000 R11: fffffbfff1cfa3e0 R12: ffff8880b8639568 [ 56.708110][ C0] R13: 0000000000000000 R14: 1ffff110170c72ad R15: ffff8880b8639568 [ 56.716080][ C0] ? __warn_printk+0x292/0x360 [ 56.720851][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 56.726305][ C0] __flush_smp_call_function_queue+0x3fc/0x1690 [ 56.732539][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 56.738001][ C0] __sysvec_call_function_single+0xb8/0x430 [ 56.743893][ C0] sysvec_call_function_single+0x9e/0xc0 [ 56.749529][ C0] [ 56.752451][ C0] [ 56.755375][ C0] asm_sysvec_call_function_single+0x1a/0x20 [ 56.761350][ C0] RIP: 0010:acpi_safe_halt+0x21/0x30 [ 56.766627][ C0] Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 00 d4 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 35 81 9e 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 [ 56.786226][ C0] RSP: 0018:ffffffff8e607ca8 EFLAGS: 00000246 [ 56.792290][ C0] RAX: ffffffff8e6945c0 RBX: ffff8880206e5064 RCX: 0000000000015e99 [ 56.800253][ C0] RDX: 0000000000000001 RSI: ffff8880206e5000 RDI: ffff8880206e5064 [ 56.808218][ C0] RBP: 000000000003a5b8 R08: ffff8880b8637a7b R09: 1ffff110170c6f4f [ 56.816183][ C0] R10: dffffc0000000000 R11: ffffffff8bcc6540 R12: ffff888145e8e000 [ 56.824145][ C0] R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f1343a0 [ 56.832109][ C0] ? __pfx_acpi_idle_enter+0x10/0x10 [ 56.837400][ C0] acpi_idle_enter+0xe4/0x140 [ 56.842071][ C0] cpuidle_enter_state+0x109/0x470 [ 56.847245][ C0] ? __pfx_menu_select+0x10/0x10 [ 56.852179][ C0] cpuidle_enter+0x5d/0xa0 [ 56.856597][ C0] do_idle+0x375/0x5d0 [ 56.860667][ C0] ? __pfx_do_idle+0x10/0x10 [ 56.865253][ C0] ? rest_init+0x30/0x300 [ 56.869584][ C0] ? rest_init+0x31/0x300 [ 56.873906][ C0] cpu_startup_entry+0x42/0x60 [ 56.878667][ C0] rest_init+0x2dc/0x300 [ 56.882901][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 56.888440][ C0] start_kernel+0x47f/0x500 [ 56.892942][ C0] x86_64_start_reservations+0x2a/0x30 [ 56.898396][ C0] x86_64_start_kernel+0x9f/0xa0 [ 56.903326][ C0] common_startup_64+0x13e/0x147 [ 56.908266][ C0] [ 56.911415][ C0] Kernel Offset: disabled [ 56.915774][ C0] Rebooting in 86400 seconds..