program: syz_mount_image$ext4(&(0x7f00000003c0)='ext4\x00', &(0x7f0000000480)='./file1\x00', 0x10, &(0x7f0000000140)={[{@norecovery}]}, 0xed, 0x474, &(0x7f0000000b80)="$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") open(&(0x7f0000000100)='./bus\x00', 0x14927e, 0x1) mount(&(0x7f0000000280)=@loop={'/dev/loop', 0x0}, &(0x7f00000003c0)='./bus\x00', 0x0, 0x5000, 0x0) r0 = open(&(0x7f0000000000)='./bus\x00', 0x8000, 0xa0) ioctl$LOOP_SET_STATUS64(r0, 0x4c04, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0, 0x8005, 0x0, 0x0, 0x14, 0xd, "ef359f413bb9386ff7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e7376b7a5ff537ed73ac58818d78c660e677df8dc905b90242b7c528a076d2f6a00400", "036c5bc6780820d1cbf7966d61fdcf335263bd9b0abdc2542ded71038259ca171ce1a311ef545032d71e14ef3dc177e9b48b001d00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x8]}) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x101842, 0x11) pwritev2(r1, &(0x7f0000000cc0)=[{&(0x7f0000000240)=';', 0xffffffbc}], 0x1, 0xfff, 0xc, 0x4) [ 85.503994][ T5325] loop0: detected capacity change from 0 to 512 [ 85.625175][ T5325] EXT4-fs (loop0): invalid journal inode [ 85.643952][ T5325] EXT4-fs (loop0): can't get journal size [ 85.827672][ T5325] EXT4-fs (loop0): 1 truncate cleaned up [ 85.932077][ T5325] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 85.949815][ T5288] Bluetooth: hci0: command tx timeout [ 86.133426][ T5325] loop0: detected capacity change from 512 to 64 [ 86.150033][ T5326] syz.0.0: attempt to access beyond end of device [ 86.150033][ T5326] loop0: rw=2049, sector=80, nr_sectors = 24 limit=64 [ 86.212789][ T5326] EXT4-fs warning (device loop0): ext4_end_bio:372: I/O error 10 writing to inode 15 starting block 40) [ 86.228572][ T5326] Buffer I/O error on device loop0, logical block 40 [ 86.235942][ T5326] Buffer I/O error on device loop0, logical block 41 [ 86.241250][ T5326] Buffer I/O error on device loop0, logical block 42 [ 86.247038][ T5326] Buffer I/O error on device loop0, logical block 43 [ 86.264973][ T5326] Buffer I/O error on device loop0, logical block 44 [ 86.272986][ T5326] Buffer I/O error on device loop0, logical block 45 [ 86.279409][ T5326] Buffer I/O error on device loop0, logical block 46 [ 86.284834][ T5326] Buffer I/O error on device loop0, logical block 47 [ 86.290762][ T5326] Buffer I/O error on device loop0, logical block 48 [ 86.316073][ T5326] Buffer I/O error on device loop0, logical block 49 [ 86.376598][ T5326] EXT4-fs error (device loop0): ext4_do_update_inode:5742: inode #15: comm syz.0.0: corrupted inode contents [ 86.394354][ T5326] EXT4-fs error (device loop0): ext4_dirty_inode:6639: inode #15: comm syz.0.0: mark_inode_dirty error [ 86.404053][ T5326] EXT4-fs error (device loop0): ext4_do_update_inode:5742: inode #15: comm syz.0.0: corrupted inode contents [ 86.418567][ T5326] EXT4-fs error (device loop0): ext4_dirty_inode:6639: inode #15: comm syz.0.0: mark_inode_dirty error [ 86.540681][ T5326] EXT4-fs error (device loop0): ext4_do_update_inode:5742: inode #15: comm syz.0.0: corrupted inode contents [ 86.551424][ T5326] EXT4-fs error (device loop0): ext4_dirty_inode:6639: inode #15: comm syz.0.0: mark_inode_dirty error [ 86.566933][ T5326] ------------[ cut here ]------------ [ 86.582215][ T5326] kernel BUG at fs/ext4/mballoc.c:4780! [ 86.604949][ T5326] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 86.609159][ T5326] CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 86.615450][ T5326] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 86.624345][ T5326] RIP: 0010:ext4_mb_use_inode_pa+0x6bf/0x720 [ 86.629851][ T5326] Code: e8 e6 96 a3 ff 48 ba 00 00 00 00 00 fc ff df e9 d7 fa ff ff e8 e2 78 34 ff 90 0f 0b e8 da 78 34 ff 90 0f 0b e8 d2 78 34 ff 90 <0f> 0b e8 ca 78 34 ff 90 0f 0b 48 8b 0c 24 48 83 c1 54 80 e1 07 80 [ 86.648667][ T5326] RSP: 0018:ffffc9000efde6a0 EFLAGS: 00010287 [ 86.658107][ T5326] RAX: ffffffff829208fe RBX: 00000000ffffffca RCX: 0000000000100000 [ 86.665818][ T5326] RDX: ffffc90020802000 RSI: 000000000001212f RDI: 0000000000012130 [ 86.672706][ T5326] RBP: 1ffff110087e52b5 R08: ffff888043f2defb R09: 1ffff110087e5bdf [ 86.679683][ T5326] R10: dffffc0000000000 R11: ffffed10087e5be0 R12: 0000000000000000 [ 86.692412][ T5326] R13: 0000000000000054 R14: 1ffff110087e5be2 R15: ffff888043f2df10 [ 86.698859][ T5326] FS: 00007f0d40cec6c0(0000) GS:ffff88808c81b000(0000) knlGS:0000000000000000 [ 86.713431][ T5326] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.719180][ T5326] CR2: 00007fc3a0576000 CR3: 000000003e84c000 CR4: 0000000000352ef0 [ 86.734533][ T5326] Call Trace: [ 86.736885][ T5326] [ 86.739747][ T5326] ext4_mb_use_preallocated+0x638/0x13e0 [ 86.745336][ T5326] ext4_mb_new_blocks+0x5a0/0x4530 [ 86.748345][ T5326] ? rcu_is_watching+0x15/0xb0 [ 86.750434][ T5326] ? __pfx_ext4_new_meta_blocks+0x10/0x10 [ 86.752836][ T5326] ? __pfx_ext4_mb_new_blocks+0x10/0x10 [ 86.755250][ T5326] ext4_ind_map_blocks+0xe96/0x22a0 [ 86.758192][ T5326] ? __pfx_ext4_ind_map_blocks+0x10/0x10 [ 86.763632][ T5326] ? kasan_save_track+0x4f/0x80 [ 86.771649][ T5326] ? ext4_map_blocks+0x7cc/0x1240 [ 86.776645][ T5326] ? down_write+0x16d/0x200 [ 86.781076][ T5326] ext4_map_create_blocks+0xbb/0x530 [ 86.787380][ T5326] ? ext4_fc_track_inode+0xf3/0x3f0 [ 86.792089][ T5326] ext4_map_blocks+0x7e4/0x1240 [ 86.797404][ T5326] ? __pfx_ext4_map_blocks+0x10/0x10 [ 86.802978][ T5326] ? __ext4_journal_ensure_credits+0x30/0x450 [ 86.806737][ T5326] ext4_do_writepages+0x19e3/0x47a0 [ 86.809487][ T5326] ? __lock_acquire+0x683/0x2cf0 [ 86.812257][ T5326] ? __pfx_ext4_do_writepages+0x10/0x10 [ 86.819430][ T5326] ? __lock_acquire+0x683/0x2cf0 [ 86.821938][ T5326] ? __free_object+0x432/0x5d0 [ 86.824747][ T5326] ? lockdep_hardirqs_on+0x7a/0x110 [ 86.827335][ T5326] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 86.848708][ T5326] ? debug_object_free+0x29c/0x340 [ 86.852384][ T5326] ? ext4_writepages+0x205/0x3b0 [ 86.856469][ T5326] ? ext4_writepages+0x205/0x3b0 [ 86.866119][ T5326] ext4_writepages+0x241/0x3b0 [ 86.869729][ T5326] ? __pfx_ext4_writepages+0x10/0x10 [ 86.872215][ T5326] ? __pfx_ext4_writepages+0x10/0x10 [ 86.874761][ T5326] do_writepages+0x338/0x560 [ 86.877142][ T5326] ? do_raw_spin_unlock+0x4d/0x210 [ 86.894071][ T5326] file_write_and_wait_range+0x36e/0x440 [ 86.896624][ T5326] ? __folio_put+0x1d0/0x590 [ 86.898897][ T5326] ? __pfx_file_write_and_wait_range+0x10/0x10 [ 86.901591][ T5326] ? __folio_put+0x4b3/0x590 [ 86.903483][ T5326] ? __pfx_ext4_write_begin+0x10/0x10 [ 86.905691][ T5326] mmb_fsync_noflush+0x73/0x1d0 [ 86.933102][ T5326] ext4_sync_file+0x41a/0xd00 [ 86.935194][ T5326] ? __pfx_ext4_sync_file+0x10/0x10 [ 86.945931][ T5326] ? ext4_buffered_write_iter+0xd6/0x370 [ 86.956861][ T5326] ? sync_lazytime+0x5a/0x4c0 [ 86.963750][ T5326] ext4_buffered_write_iter+0x2c7/0x370 [ 86.973776][ T5326] ext4_file_write_iter+0x947/0x1c70 [ 86.983804][ T5326] ? __lock_acquire+0x683/0x2cf0 [ 86.993067][ T5326] ? __pfx_aa_file_perm+0x10/0x10 [ 86.997248][ T5326] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 87.004112][ T5326] ? preempt_schedule_thunk+0x16/0x40 [ 87.006552][ T5326] do_iter_readv_writev+0x612/0x8c0 [ 87.018634][ T5326] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 87.027223][ T5326] vfs_writev+0x343/0x990 [ 87.032226][ T5326] ? __pfx_vfs_writev+0x10/0x10 [ 87.034271][ T5326] ? __fget_files+0x2a/0x420 [ 87.036495][ T5326] ? __fget_files+0x3a2/0x420 [ 87.048360][ T5326] ? __fget_files+0x2a/0x420 [ 87.050567][ T5326] __se_sys_pwritev2+0x177/0x2a0 [ 87.052872][ T5326] ? __pfx___se_sys_pwritev2+0x10/0x10 [ 87.055438][ T5326] ? __x64_sys_pwritev2+0x20/0xc0 [ 87.073380][ T5326] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.085946][ T5326] do_syscall_64+0x174/0x580 [ 87.095461][ T5326] ? trace_irq_disable+0x3b/0x140 [ 87.100524][ T5326] ? clear_bhb_loop+0x40/0x90 [ 87.102850][ T5326] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.105868][ T5326] RIP: 0033:0x7f0d3fd9ce59 [ 87.125935][ T5326] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48 [ 87.155465][ T5326] RSP: 002b:00007f0d40cebfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 [ 87.178473][ T5326] RAX: ffffffffffffffda RBX: 00007f0d40016090 RCX: 00007f0d3fd9ce59 [ 87.190801][ T5326] RDX: 0000000000000001 RSI: 0000200000000cc0 RDI: 0000000000000006 [ 87.204968][ T5326] RBP: 00007f0d3fe32e6f R08: 000000000000000c R09: 0000000000000004 [ 87.211546][ T5326] R10: 0000000000000fff R11: 0000000000000246 R12: 0000000000000000 [ 87.225813][ T5326] R13: 00007f0d40016128 R14: 00007f0d40016090 R15: 00007ffed3d1cd88 [ 87.238560][ T5326] [ 87.240888][ T5326] Modules linked in: [ 87.250983][ T5326] ---[ end trace 0000000000000000 ]--- [ 87.261079][ T5326] RIP: 0010:ext4_mb_use_inode_pa+0x6bf/0x720 [ 87.271098][ T5326] Code: e8 e6 96 a3 ff 48 ba 00 00 00 00 00 fc ff df e9 d7 fa ff ff e8 e2 78 34 ff 90 0f 0b e8 da 78 34 ff 90 0f 0b e8 d2 78 34 ff 90 <0f> 0b e8 ca 78 34 ff 90 0f 0b 48 8b 0c 24 48 83 c1 54 80 e1 07 80 [ 87.296193][ T5326] RSP: 0018:ffffc9000efde6a0 EFLAGS: 00010287 [ 87.300475][ T5326] RAX: ffffffff829208fe RBX: 00000000ffffffca RCX: 0000000000100000 [ 87.317016][ T5326] RDX: ffffc90020802000 RSI: 000000000001212f RDI: 0000000000012130 [ 87.326462][ T5326] RBP: 1ffff110087e52b5 R08: ffff888043f2defb R09: 1ffff110087e5bdf [ 87.338851][ T5326] R10: dffffc0000000000 R11: ffffed10087e5be0 R12: 0000000000000000 [ 87.349699][ T5326] R13: 0000000000000054 R14: 1ffff110087e5be2 R15: ffff888043f2df10 [ 87.355627][ T5326] FS: 00007f0d40cec6c0(0000) GS:ffff88808c81b000(0000) knlGS:0000000000000000 [ 87.368790][ T5326] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.380604][ T5326] CR2: 00007fc3a0576000 CR3: 000000003e84c000 CR4: 0000000000352ef0 [ 87.384264][ T5326] Kernel panic - not syncing: Fatal exception [ 87.387777][ T5326] Kernel Offset: disabled [ 87.404298][ T5326] Rebooting in 86400 seconds..