./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2816944209 <...> Warning: Permanently added '10.128.0.82' (ED25519) to the list of known hosts. execve("./syz-executor2816944209", ["./syz-executor2816944209"], 0x7ffd235e3eb0 /* 10 vars */) = 0 brk(NULL) = 0x55555ba19000 brk(0x55555ba19d00) = 0x55555ba19d00 arch_prctl(ARCH_SET_FS, 0x55555ba19380) = 0 set_tid_address(0x55555ba19650) = 5833 set_robust_list(0x55555ba19660, 24) = 0 rseq(0x55555ba19ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2816944209", 4096) = 28 getrandom("\x9a\xa5\x8e\xf4\x1f\xd7\x0c\x46", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555ba19d00 brk(0x55555ba3ad00) = 0x55555ba3ad00 brk(0x55555ba3b000) = 0x55555ba3b000 mprotect(0x7ff1ac9cf000, 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, "/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 5834 attached , child_tidptr=0x55555ba19650) = 5834 [pid 5834] set_robust_list(0x55555ba19660, 24) = 0 [pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5834] setpgid(0, 0) = 0 [pid 5834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "1000", 4) = 4 [pid 5834] close(3) = 0 [pid 5834] write(1, "executing program\n", 18executing program ) = 18 [pid 5834] memfd_create("syzkaller", 0) = 3 [pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff1a4400000 [pid 5834] 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 [pid 5834] munmap(0x7ff1a4400000, 138412032) = 0 [pid 5834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5834] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5834] close(3) = 0 [pid 5834] close(4) = 0 [pid 5834] mkdir("./file0", 0777) = 0 [ 76.862225][ T5834] loop0: detected capacity change from 0 to 128 [ 76.900856][ T5834] VFS: Found a Xenix FS (block size = 1024) on device loop0 [ 76.908459][ T5834] Bad inode number on dev loop0: 2 is out of range [ 76.915467][ T5834] SysV FS: get root inode failed [ 76.920464][ T5834] oldfs: cannot read superblock [ 76.925692][ C0] ------------[ cut here ]------------ [ 76.931241][ C0] VFS: brelse: Trying to free free buffer [ 76.937192][ C0] WARNING: CPU: 0 PID: 0 at fs/buffer.c:1235 invalidate_bh_lru+0x102/0x1b0 [ 76.945842][ C0] Modules linked in: [ 76.949850][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc5-syzkaller-00308-g3e5e6c9900c3 #0 [ 76.960185][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 76.970375][ C0] RIP: 0010:invalidate_bh_lru+0x102/0x1b0 [ 76.976115][ C0] Code: 84 5b db ff f0 ff 0b eb 25 e8 ca bd 74 ff 41 80 3c 2e 00 75 2a eb 30 e8 bc bd 74 ff 90 48 c7 c7 60 7a 19 8c e8 bf b2 35 ff 90 <0f> 0b 90 90 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2e 00 74 08 4c [ 76.996112][ C0] RSP: 0018:ffffc90000007f30 EFLAGS: 00010046 [ 77.002194][ C0] RAX: e0258bce072ecc00 RBX: ffff8880773d2230 RCX: ffffffff8e694640 [ 77.010181][ C0] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 [ 77.018342][ C0] RBP: 0000000000000000 R08: ffffffff8155d162 R09: 1ffff110170c519a [ 77.026323][ C0] R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff8880b8639940 [ 77.034306][ C0] R13: 0000000000000000 R14: 1ffff110170c7328 R15: ffff8880b8639940 [ 77.042294][ C0] FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 77.051237][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.057826][ C0] CR2: 000055f045bd3fd8 CR3: 0000000032f1c000 CR4: 00000000003526f0 [ 77.065809][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.073805][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.081784][ C0] Call Trace: [ 77.085070][ C0] [ 77.087922][ C0] ? __warn+0x168/0x4e0 [ 77.092109][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 77.097241][ C0] ? report_bug+0x2b3/0x500 [ 77.101767][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 77.106893][ C0] ? handle_bug+0x60/0x90 [ 77.111239][ C0] ? exc_invalid_op+0x1a/0x50 [ 77.115928][ C0] ? asm_exc_invalid_op+0x1a/0x20 [ 77.120963][ C0] ? __warn_printk+0x292/0x360 [ 77.125826][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 77.130950][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 77.136438][ C0] __flush_smp_call_function_queue+0x3fc/0x1690 [ 77.142715][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 77.148194][ C0] __sysvec_call_function_single+0xb8/0x430 [ 77.154126][ C0] sysvec_call_function_single+0x9e/0xc0 [ 77.159769][ C0] [ 77.162707][ C0] [ 77.165817][ C0] asm_sysvec_call_function_single+0x1a/0x20 [ 77.171807][ C0] RIP: 0010:finish_task_switch+0x1ea/0x870 [ 77.177622][ C0] Code: c9 50 e8 f9 00 0c 00 48 83 c4 08 4c 89 f7 e8 4d 39 00 00 0f 1f 44 00 00 4c 89 f7 e8 20 09 64 0a e8 9b 5a 38 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc [ 77.197409][ C0] RSP: 0018:ffffffff8e607ae8 EFLAGS: 00000282 [ 77.203489][ C0] RAX: e0258bce072ecc00 RBX: ffffffff8e694640 RCX: ffffffff9a39e903 [ 77.211472][ C0] RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: ffffffff8c603460 [ 77.219478][ C0] RBP: ffffffff8e607b30 R08: ffffffff901bdd2f R09: 1ffffffff2037ba5 [ 77.227482][ C0] R10: dffffc0000000000 R11: fffffbfff2037ba6 R12: 1ffff110170c7f0c [ 77.235653][ C0] R13: dffffc0000000000 R14: ffff8880b863ea40 R15: ffff8880b863f860 [ 77.243691][ C0] ? finish_task_switch+0x1e5/0x870 [ 77.248914][ C0] __schedule+0x1862/0x4b70 [ 77.253433][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 77.259786][ C0] ? asm_sysvec_call_function_single+0x1a/0x20 [ 77.265960][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 77.271179][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 77.277525][ C0] ? __pfx___schedule+0x10/0x10 [ 77.282392][ C0] ? tick_nohz_idle_exit+0x36e/0x480 [ 77.287696][ C0] ? flush_smp_call_function_queue+0x142/0x2a0 [ 77.293879][ C0] ? __pfx_tick_nohz_idle_exit+0x10/0x10 [ 77.299528][ C0] schedule_idle+0x56/0x90 [ 77.303955][ C0] do_idle+0x56a/0x5d0 [ 77.308060][ C0] ? __pfx___schedule+0x10/0x10 [ 77.312931][ C0] ? __pfx_do_idle+0x10/0x10 [ 77.317540][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 77.323443][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 77.329781][ C0] ? rest_init+0x31/0x300 [ 77.334130][ C0] ? rest_init+0x31/0x300 [ 77.338503][ C0] cpu_startup_entry+0x42/0x60 [ 77.343283][ C0] rest_init+0x2dc/0x300 [ 77.347541][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 77.353187][ C0] start_kernel+0x47f/0x500 [ 77.357799][ C0] x86_64_start_reservations+0x2a/0x30 [ 77.363357][ C0] x86_64_start_kernel+0x9f/0xa0 [ 77.368393][ C0] common_startup_64+0x13e/0x147 [ 77.373441][ C0] [ 77.376468][ C0] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 77.383768][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc5-syzkaller-00308-g3e5e6c9900c3 #0 [ 77.394122][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 77.404272][ C0] Call Trace: [ 77.407559][ C0] [ 77.410410][ C0] dump_stack_lvl+0x241/0x360 [ 77.415116][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 77.420326][ C0] ? __pfx__printk+0x10/0x10 [ 77.424925][ C0] ? _printk+0xd5/0x120 [ 77.429094][ C0] ? __init_begin+0x41000/0x41000 [ 77.434139][ C0] ? vscnprintf+0x5d/0x90 [ 77.438486][ C0] panic+0x349/0x880 [ 77.442407][ C0] ? __warn+0x177/0x4e0 [ 77.446657][ C0] ? __pfx_panic+0x10/0x10 [ 77.451085][ C0] ? show_trace_log_lvl+0x3b2/0x410 [ 77.456300][ C0] ? common_startup_64+0x13e/0x147 [ 77.461428][ C0] __warn+0x34b/0x4e0 [ 77.465453][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 77.470668][ C0] report_bug+0x2b3/0x500 [ 77.475096][ C0] ? invalidate_bh_lru+0x102/0x1b0 [ 77.480223][ C0] handle_bug+0x60/0x90 [ 77.484393][ C0] exc_invalid_op+0x1a/0x50 [ 77.488907][ C0] asm_exc_invalid_op+0x1a/0x20 [ 77.493770][ C0] RIP: 0010:invalidate_bh_lru+0x102/0x1b0 [ 77.499504][ C0] Code: 84 5b db ff f0 ff 0b eb 25 e8 ca bd 74 ff 41 80 3c 2e 00 75 2a eb 30 e8 bc bd 74 ff 90 48 c7 c7 60 7a 19 8c e8 bf b2 35 ff 90 <0f> 0b 90 90 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2e 00 74 08 4c [ 77.519467][ C0] RSP: 0018:ffffc90000007f30 EFLAGS: 00010046 [ 77.525549][ C0] RAX: e0258bce072ecc00 RBX: ffff8880773d2230 RCX: ffffffff8e694640 [ 77.533530][ C0] RDX: 0000000000010000 RSI: 0000000000000000 RDI: 0000000000000000 [ 77.541540][ C0] RBP: 0000000000000000 R08: ffffffff8155d162 R09: 1ffff110170c519a [ 77.549527][ C0] R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff8880b8639940 [ 77.557510][ C0] R13: 0000000000000000 R14: 1ffff110170c7328 R15: ffff8880b8639940 [ 77.565500][ C0] ? __warn_printk+0x292/0x360 [ 77.570292][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 77.575773][ C0] __flush_smp_call_function_queue+0x3fc/0x1690 [ 77.582075][ C0] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 77.587564][ C0] __sysvec_call_function_single+0xb8/0x430 [ 77.593473][ C0] sysvec_call_function_single+0x9e/0xc0 [ 77.599142][ C0] [ 77.602109][ C0] [ 77.605048][ C0] asm_sysvec_call_function_single+0x1a/0x20 [ 77.611046][ C0] RIP: 0010:finish_task_switch+0x1ea/0x870 [ 77.616894][ C0] Code: c9 50 e8 f9 00 0c 00 48 83 c4 08 4c 89 f7 e8 4d 39 00 00 0f 1f 44 00 00 4c 89 f7 e8 20 09 64 0a e8 9b 5a 38 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc [ 77.636602][ C0] RSP: 0018:ffffffff8e607ae8 EFLAGS: 00000282 [ 77.642712][ C0] RAX: e0258bce072ecc00 RBX: ffffffff8e694640 RCX: ffffffff9a39e903 [ 77.650695][ C0] RDX: dffffc0000000000 RSI: ffffffff8c0acac0 RDI: ffffffff8c603460 [ 77.658683][ C0] RBP: ffffffff8e607b30 R08: ffffffff901bdd2f R09: 1ffffffff2037ba5 [ 77.666782][ C0] R10: dffffc0000000000 R11: fffffbfff2037ba6 R12: 1ffff110170c7f0c [ 77.674764][ C0] R13: dffffc0000000000 R14: ffff8880b863ea40 R15: ffff8880b863f860 [ 77.682757][ C0] ? finish_task_switch+0x1e5/0x870 [ 77.688006][ C0] __schedule+0x1862/0x4b70 [ 77.692519][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 77.698952][ C0] ? asm_sysvec_call_function_single+0x1a/0x20 [ 77.705114][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 77.710329][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 77.716672][ C0] ? __pfx___schedule+0x10/0x10 [ 77.721536][ C0] ? tick_nohz_idle_exit+0x36e/0x480 [ 77.726833][ C0] ? flush_smp_call_function_queue+0x142/0x2a0 [ 77.733029][ C0] ? __pfx_tick_nohz_idle_exit+0x10/0x10 [ 77.738679][ C0] schedule_idle+0x56/0x90 [ 77.743133][ C0] do_idle+0x56a/0x5d0 [ 77.747224][ C0] ? __pfx___schedule+0x10/0x10 [ 77.752090][ C0] ? __pfx_do_idle+0x10/0x10 [ 77.756698][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 77.762620][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 77.769090][ C0] ? rest_init+0x31/0x300 [ 77.773460][ C0] ? rest_init+0x31/0x300 [ 77.777813][ C0] cpu_startup_entry+0x42/0x60 [ 77.782600][ C0] rest_init+0x2dc/0x300 [ 77.786888][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 77.792477][ C0] start_kernel+0x47f/0x500 [ 77.797027][ C0] x86_64_start_reservations+0x2a/0x30 [ 77.802515][ C0] x86_64_start_kernel+0x9f/0xa0 [ 77.807464][ C0] common_startup_64+0x13e/0x147 [ 77.812426][ C0] [ 77.816536][ C0] Kernel Offset: disabled [ 77.820903][ C0] Rebooting in 86400 seconds..