./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3226514989 <...> Warning: Permanently added '10.128.1.147' (ED25519) to the list of known hosts. execve("./syz-executor3226514989", ["./syz-executor3226514989"], 0x7ffce2722790 /* 10 vars */) = 0 brk(NULL) = 0x55555b7d5000 brk(0x55555b7d5d00) = 0x55555b7d5d00 arch_prctl(ARCH_SET_FS, 0x55555b7d5380) = 0 set_tid_address(0x55555b7d5650) = 5081 set_robust_list(0x55555b7d5660, 24) = 0 rseq(0x55555b7d5ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3226514989", 4096) = 28 getrandom("\x54\x4f\x8d\xfc\x9b\x53\xb0\x13", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555b7d5d00 brk(0x55555b7f6d00) = 0x55555b7f6d00 brk(0x55555b7f7000) = 0x55555b7f7000 mprotect(0x7f47f4540000, 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 5083 attached , child_tidptr=0x55555b7d5650) = 5083 [pid 5083] set_robust_list(0x55555b7d5660, 24) = 0 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5083] setpgid(0, 0) = 0 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] write(3, "1000", 4) = 4 [pid 5083] close(3) = 0 [pid 5083] write(1, "executing program\n", 18executing program ) = 18 [pid 5083] memfd_create("syzkaller", 0) = 3 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f47ec000000 [pid 5083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5083] munmap(0x7f47ec000000, 138412032) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5083] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5083] close(3) = 0 [pid 5083] close(4) = 0 [pid 5083] mkdir("./file1", 0777) = 0 [ 57.149096][ T5083] loop0: detected capacity change from 0 to 32768 [ 57.190653][ T5083] bcachefs (/dev/loop0): error reading default superblock: checksum error, type crc32c_nonzero: got 84a25241 should be 29d2fb78 [ 57.237504][ T5083] bcachefs (loop0): mounting version 1.7: mi_btree_bitmap opts=compression=lz4,nojournal_transaction_names [ 57.249601][ T5083] bcachefs (loop0): recovering from clean shutdown, journal seq 7 [ 57.271787][ T5083] bcachefs (loop0): alloc_read... done [ 57.277539][ T5083] bcachefs (loop0): stripes_read... done [pid 5083] mount("/dev/loop0", "./file1", "bcachefs", 0, "") = 0 [pid 5083] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5083] chdir("./file1") = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5083] ioctl(4, LOOP_CLR_FD) = 0 [pid 5083] close(4) = 0 [ 57.283636][ T5083] bcachefs (loop0): snapshots_read... done [ 57.292004][ T5083] bcachefs (loop0): journal_replay... done [ 57.297880][ T5083] bcachefs (loop0): resume_logged_ops... done [ 57.304488][ T5083] bcachefs (loop0): going read-write [ 57.313363][ T5083] bcachefs (loop0): done starting filesystem [pid 5083] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME, 000) = 4 [ 57.372737][ T5083] ------------[ cut here ]------------ [ 57.378397][ T5083] WARNING: CPU: 0 PID: 5083 at fs/bcachefs/fs-io.c:327 __bch2_truncate_folio+0x1a33/0x1d80 [ 57.388478][ T5083] Modules linked in: [ 57.392396][ T5083] CPU: 0 PID: 5083 Comm: syz-executor322 Not tainted 6.9.0-syzkaller-10729-gb6394d6f7159 #0 [ 57.402796][ T5083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 57.413155][ T5083] RIP: 0010:__bch2_truncate_folio+0x1a33/0x1d80 [ 57.419519][ T5083] Code: 41 5f 5d c3 cc cc cc cc e8 3a 00 6f fd 48 c7 c7 fa 04 c0 8d e8 4e 1c ea ff 89 05 18 02 6a 10 e9 ed ea ff ff e8 1e 00 6f fd 90 <0f> 0b 90 e9 0a fa ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c f0 [ 57.439219][ T5083] RSP: 0018:ffffc900033df6c0 EFLAGS: 00010293 [ 57.445313][ T5083] RAX: ffffffff84273a52 RBX: 0000000000000000 RCX: ffff888078fb8000 [ 57.453367][ T5083] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 57.461418][ T5083] RBP: ffffc900033df950 R08: ffffffff84273457 R09: 1ffffd400014f498 [ 57.469471][ T5083] R10: dffffc0000000000 R11: fffff9400014f499 R12: 1ffff1100ecd900a [ 57.477515][ T5083] R13: ffff88807420075a R14: 0000000000000000 R15: ffff8880766c8050 [ 57.485581][ T5083] FS: 000055555b7d5380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 57.494568][ T5083] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.501246][ T5083] CR2: 00007f47f45440f8 CR3: 0000000077134000 CR4: 00000000003506f0 [ 57.509261][ T5083] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.517228][ T5083] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.525277][ T5083] Call Trace: [ 57.528630][ T5083] [ 57.531574][ T5083] ? __warn+0x163/0x4e0 [ 57.535746][ T5083] ? __bch2_truncate_folio+0x1a33/0x1d80 [ 57.541448][ T5083] ? report_bug+0x2b3/0x500 [ 57.545982][ T5083] ? __bch2_truncate_folio+0x1a33/0x1d80 [ 57.551688][ T5083] ? handle_bug+0x3e/0x70 [ 57.556041][ T5083] ? exc_invalid_op+0x1a/0x50 [ 57.560800][ T5083] ? asm_exc_invalid_op+0x1a/0x20 [ 57.565847][ T5083] ? __bch2_truncate_folio+0x1437/0x1d80 [ 57.571538][ T5083] ? __bch2_truncate_folio+0x1a32/0x1d80 [ 57.577187][ T5083] ? __bch2_truncate_folio+0x1a33/0x1d80 [ 57.582909][ T5083] ? __pfx___bch2_truncate_folio+0x10/0x10 [ 57.588778][ T5083] ? __bch2_truncate_folio+0x6c9/0x1d80 [ 57.594337][ T5083] ? _raw_spin_unlock_irq+0x23/0x50 [ 57.599642][ T5083] ? lockdep_hardirqs_on+0x99/0x150 [ 57.604881][ T5083] ? mnt_put_write_access_file+0xc2/0x100 [ 57.610703][ T5083] bch2_fallocate_dispatch+0x6fb/0x3810 [ 57.616293][ T5083] ? __pfx_validate_chain+0x10/0x10 [ 57.621680][ T5083] ? mark_lock+0x9a/0x350 [ 57.626038][ T5083] ? __lock_acquire+0x1346/0x1fd0 [ 57.631221][ T5083] ? __pfx_bch2_fallocate_dispatch+0x10/0x10 [ 57.637223][ T5083] ? mark_lock+0x9a/0x350 [ 57.641669][ T5083] ? __lock_acquire+0x1346/0x1fd0 [ 57.646744][ T5083] ? __pfx_lock_acquire+0x10/0x10 [ 57.651865][ T5083] ? rcu_read_lock_any_held+0xb7/0x160 [ 57.657373][ T5083] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 57.663358][ T5083] vfs_fallocate+0x564/0x6c0 [ 57.667972][ T5083] __x64_sys_fallocate+0xbd/0x110 [ 57.673054][ T5083] do_syscall_64+0xf5/0x240 [ 57.677569][ T5083] ? clear_bhb_loop+0x35/0x90 [ 57.682335][ T5083] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 57.688306][ T5083] RIP: 0033:0x7f47f44c7a99 [ 57.692738][ T5083] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 [ 57.712418][ T5083] RSP: 002b:00007ffec1ed9828 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 57.720885][ T5083] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f47f44c7a99 [ 57.728930][ T5083] RDX: 0000000000000002 RSI: 0000000000000003 RDI: 0000000000000004 [ 57.736910][ T5083] RBP: 00007f47f45405f0 R08: 000055555b7d64c0 R09: 000055555b7d64c0 [ 57.744958][ T5083] R10: 0000000000010000 R11: 0000000000000246 R12: 00007ffec1ed9850 [ 57.753035][ T5083] R13: 00007ffec1ed9a78 R14: 431bde82d7b634db R15: 00007f47f451003b [ 57.761094][ T5083] [ 57.764128][ T5083] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 57.771414][ T5083] CPU: 0 PID: 5083 Comm: syz-executor322 Not tainted 6.9.0-syzkaller-10729-gb6394d6f7159 #0 [ 57.781469][ T5083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 57.791517][ T5083] Call Trace: [ 57.794795][ T5083] [ 57.797726][ T5083] dump_stack_lvl+0x241/0x360 [ 57.802492][ T5083] ? __pfx_dump_stack_lvl+0x10/0x10 [ 57.807680][ T5083] ? __pfx__printk+0x10/0x10 [ 57.812272][ T5083] ? vscnprintf+0x5d/0x90 [ 57.816599][ T5083] panic+0x349/0x860 [ 57.820494][ T5083] ? __warn+0x172/0x4e0 [ 57.824646][ T5083] ? __pfx_panic+0x10/0x10 [ 57.829072][ T5083] __warn+0x346/0x4e0 [ 57.833050][ T5083] ? __bch2_truncate_folio+0x1a33/0x1d80 [ 57.838680][ T5083] report_bug+0x2b3/0x500 [ 57.843005][ T5083] ? __bch2_truncate_folio+0x1a33/0x1d80 [ 57.848636][ T5083] handle_bug+0x3e/0x70 [ 57.852785][ T5083] exc_invalid_op+0x1a/0x50 [ 57.857280][ T5083] asm_exc_invalid_op+0x1a/0x20 [ 57.862133][ T5083] RIP: 0010:__bch2_truncate_folio+0x1a33/0x1d80 [ 57.868370][ T5083] Code: 41 5f 5d c3 cc cc cc cc e8 3a 00 6f fd 48 c7 c7 fa 04 c0 8d e8 4e 1c ea ff 89 05 18 02 6a 10 e9 ed ea ff ff e8 1e 00 6f fd 90 <0f> 0b 90 e9 0a fa ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c f0 [ 57.887967][ T5083] RSP: 0018:ffffc900033df6c0 EFLAGS: 00010293 [ 57.894030][ T5083] RAX: ffffffff84273a52 RBX: 0000000000000000 RCX: ffff888078fb8000 [ 57.901993][ T5083] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 57.909954][ T5083] RBP: ffffc900033df950 R08: ffffffff84273457 R09: 1ffffd400014f498 [ 57.917915][ T5083] R10: dffffc0000000000 R11: fffff9400014f499 R12: 1ffff1100ecd900a [ 57.925881][ T5083] R13: ffff88807420075a R14: 0000000000000000 R15: ffff8880766c8050 [ 57.933853][ T5083] ? __bch2_truncate_folio+0x1437/0x1d80 [ 57.939484][ T5083] ? __bch2_truncate_folio+0x1a32/0x1d80 [ 57.945129][ T5083] ? __pfx___bch2_truncate_folio+0x10/0x10 [ 57.950937][ T5083] ? __bch2_truncate_folio+0x6c9/0x1d80 [ 57.956487][ T5083] ? _raw_spin_unlock_irq+0x23/0x50 [ 57.961676][ T5083] ? lockdep_hardirqs_on+0x99/0x150 [ 57.966870][ T5083] ? mnt_put_write_access_file+0xc2/0x100 [ 57.972593][ T5083] bch2_fallocate_dispatch+0x6fb/0x3810 [ 57.978142][ T5083] ? __pfx_validate_chain+0x10/0x10 [ 57.983335][ T5083] ? mark_lock+0x9a/0x350 [ 57.987656][ T5083] ? __lock_acquire+0x1346/0x1fd0 [ 57.992685][ T5083] ? __pfx_bch2_fallocate_dispatch+0x10/0x10 [ 57.998661][ T5083] ? mark_lock+0x9a/0x350 [ 58.002987][ T5083] ? __lock_acquire+0x1346/0x1fd0 [ 58.008023][ T5083] ? __pfx_lock_acquire+0x10/0x10 [ 58.013044][ T5083] ? rcu_read_lock_any_held+0xb7/0x160 [ 58.018494][ T5083] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 58.024387][ T5083] vfs_fallocate+0x564/0x6c0 [ 58.028982][ T5083] __x64_sys_fallocate+0xbd/0x110 [ 58.034000][ T5083] do_syscall_64+0xf5/0x240 [ 58.038496][ T5083] ? clear_bhb_loop+0x35/0x90 [ 58.043175][ T5083] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.049068][ T5083] RIP: 0033:0x7f47f44c7a99 [ 58.053476][ T5083] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 [ 58.073070][ T5083] RSP: 002b:00007ffec1ed9828 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 58.081479][ T5083] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f47f44c7a99 [ 58.089444][ T5083] RDX: 0000000000000002 RSI: 0000000000000003 RDI: 0000000000000004 [ 58.097404][ T5083] RBP: 00007f47f45405f0 R08: 000055555b7d64c0 R09: 000055555b7d64c0 [ 58.105366][ T5083] R10: 0000000000010000 R11: 0000000000000246 R12: 00007ffec1ed9850 [ 58.113327][ T5083] R13: 00007ffec1ed9a78 R14: 431bde82d7b634db R15: 00007f47f451003b [ 58.121304][ T5083] [ 58.124569][ T5083] Kernel Offset: disabled [ 58.128921][ T5083] Rebooting in 86400 seconds..