program: syz_mount_image$ext4(&(0x7f0000000080)='ext4\x00', &(0x7f0000000840)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0xc0ed000e, &(0x7f0000000940)={[{@min_batch_time={'min_batch_time', 0x3d, 0x5}}, {@auto_da_alloc}, {@mb_optimize_scan}, {@noload}, {@noload}, {@noblock_validity}, {@barrier_val={'barrier', 0x3d, 0x80}}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x8000}}]}, 0xfe, 0x497, &(0x7f0000000a00)="$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") open(&(0x7f0000000180)='./bus\x00', 0x4a37e, 0x4) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000140)='cpuacct.usage_percpu\x00', 0x275a, 0x0) close(0x3) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000140)='cpuacct.usage_percpu\x00', 0x275a, 0x0) write$binfmt_script(r0, &(0x7f0000000200), 0xfea7) mount(&(0x7f0000000280)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x1000, 0x0) r1 = open(&(0x7f0000000000)='./bus\x00', 0x8000, 0xa0) ioctl$LOOP_SET_STATUS64(r1, 0x4c04, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0, 0x8005, 0x0, 0x0, 0x14, 0xd, "ef359f413bb9386ff7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e7376b7a5ff537ed73ac58818d78c660e677df8dc905b90242b7c528a076d2f6a00400", "036c5bc6780820d1cbf7966d61fdcf335263bd9b0abdc2542ded71038259ca171ce1a311ef545032d71e14ef3dc177e9b48b001d00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x8, 0xfffffffffffffffe]}) close(0x3) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) close_range(r2, 0xffffffffffffffff, 0x0) [ 86.640258][ T5322] loop0: detected capacity change from 0 to 512 [ 86.680847][ T5285] Bluetooth: hci0: command tx timeout [ 86.733309][ T5322] EXT4-fs error (device loop0): __ext4_iget:5533: inode #15: block 1803188595: comm syz.0.0: invalid block [ 86.752679][ T5322] loop0: lost file I/O error report for ino 15 type 5 pos 0x0 len 0x0 error -117 [ 86.754234][ T5322] EXT4-fs error (device loop0): ext4_orphan_get:1404: comm syz.0.0: couldn't read orphan inode 15 (err -117) [ 86.763093][ C0] EXT4-fs (loop0): error count since last fsck: 1 [ 86.763150][ C0] EXT4-fs (loop0): initial error at time 1785570709: __ext4_iget:5533: inode 15: block 1803188595 [ 86.763175][ C0] EXT4-fs (loop0): last error at time 1785570709: __ext4_iget:5533: inode 15: block 1803188595 [ 86.779340][ T5322] loop0: lost filesystem error report for type 5 error -117 [ 86.781252][ T5322] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 86.843583][ T5322] loop0: detected capacity change from 512 to 64 [ 86.914630][ T5323] EXT4-fs error (device loop0): ext4_do_update_inode:5742: inode #19: comm syz.0.0: corrupted inode contents [ 86.930518][ T5323] EXT4-fs error (device loop0): ext4_dirty_inode:6639: inode #19: comm syz.0.0: mark_inode_dirty error [ 86.937403][ T5323] EXT4-fs error (device loop0): ext4_do_update_inode:5742: inode #19: comm syz.0.0: corrupted inode contents [ 86.952718][ T5323] EXT4-fs error (device loop0): ext4_dirty_inode:6639: inode #19: comm syz.0.0: mark_inode_dirty error [ 86.968289][ T5323] EXT4-fs error (device loop0): ext4_do_update_inode:5742: inode #19: comm syz.0.0: corrupted inode contents [ 86.975229][ T5323] EXT4-fs error (device loop0): mpage_map_and_submit_extent:2559: inode #19: comm syz.0.0: mark_inode_dirty error [ 86.981654][ T5323] EXT4-fs error (device loop0): mpage_map_and_submit_extent:2563: comm syz.0.0: Failed to mark inode 19 dirty [ 86.987906][ T5322] EXT4-fs error (device loop0): ext4_do_update_inode:5742: inode #19: comm syz.0.0: corrupted inode contents [ 86.994114][ T5323] syz.0.0: attempt to access beyond end of device [ 86.994114][ T5323] loop0: rw=1, sector=258, nr_sectors = 24 limit=64 [ 87.001862][ T5322] EXT4-fs error (device loop0): ext4_dirty_inode:6639: inode #19: comm syz.0.0: mark_inode_dirty error [ 87.007051][ T5323] EXT4-fs warning (device loop0): ext4_end_bio:372: I/O error 10 writing to inode 19 starting block 129) [ 87.011104][ T5323] Buffer I/O error on device loop0, logical block 129 [ 87.014004][ T5323] Buffer I/O error on device loop0, logical block 130 [ 87.016837][ T5323] Buffer I/O error on device loop0, logical block 131 [ 87.019708][ T5323] Buffer I/O error on device loop0, logical block 132 [ 87.022569][ T5323] Buffer I/O error on device loop0, logical block 133 [ 87.025402][ T5323] Buffer I/O error on device loop0, logical block 134 [ 87.028210][ T5323] Buffer I/O error on device loop0, logical block 135 [ 87.030902][ T5323] Buffer I/O error on device loop0, logical block 136 [ 87.033326][ T5323] Buffer I/O error on device loop0, logical block 137 [ 87.035491][ T5323] Buffer I/O error on device loop0, logical block 138 [ 87.050693][ T5322] EXT4-fs error (device loop0): ext4_do_update_inode:5742: inode #19: comm syz.0.0: corrupted inode contents [ 87.097591][ T68] ------------[ cut here ]------------ [ 87.100459][ T68] kernel BUG at fs/ext4/mballoc.c:4780! [ 87.103252][ T68] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 87.105781][ T68] CPU: 0 UID: 0 PID: 68 Comm: kworker/u4:4 Not tainted syzkaller #0 PREEMPT(full) [ 87.109386][ T68] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 87.113416][ T68] Workqueue: writeback wb_workfn (flush-7:0) [ 87.115768][ T68] RIP: 0010:ext4_mb_use_inode_pa+0x6bf/0x720 [ 87.118005][ T68] Code: e8 16 81 a3 ff 48 ba 00 00 00 00 00 fc ff df e9 d7 fa ff ff e8 42 4f 34 ff 90 0f 0b e8 3a 4f 34 ff 90 0f 0b e8 32 4f 34 ff 90 <0f> 0b e8 2a 4f 34 ff 90 0f 0b 48 8b 0c 24 48 83 c1 54 80 e1 07 80 [ 87.125396][ T68] RSP: 0018:ffffc90000ade560 EFLAGS: 00010293 [ 87.127781][ T68] RAX: ffffffff8292d5ee RBX: 00000000ffffffd8 RCX: ffff888000e6ca80 [ 87.130906][ T68] RDX: 0000000000000000 RSI: 0000000000000034 RDI: 000000000000000c [ 87.133704][ T68] RBP: 1ffff110087ba8b5 R08: ffff888043dd8b5b R09: 1ffff110087bb16b [ 87.136466][ T68] R10: dffffc0000000000 R11: ffffed10087bb16c R12: 0000000000000000 [ 87.139426][ T68] R13: 0000000000000034 R14: 1ffff110087bb16e R15: ffff888043dd8b70 [ 87.142641][ T68] FS: 0000000000000000(0000) GS:ffff88808c53f000(0000) knlGS:0000000000000000 [ 87.146441][ T68] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.149168][ T68] CR2: 00007f679cd6aa3c CR3: 0000000012a06000 CR4: 0000000000352ef0 [ 87.152574][ T68] Call Trace: [ 87.153967][ T68] [ 87.155173][ T68] ext4_mb_use_preallocated+0x638/0x13e0 [ 87.157489][ T68] ext4_mb_new_blocks+0x5a0/0x4530 [ 87.159692][ T68] ? do_raw_spin_unlock+0x4d/0x210 [ 87.161712][ T68] ? _raw_spin_unlock+0x28/0x50 [ 87.163984][ T68] ? __pfx_ext4_new_meta_blocks+0x10/0x10 [ 87.166662][ T68] ? unwind_next_frame+0x1baf/0x2550 [ 87.168970][ T68] ? __pfx_ext4_mb_new_blocks+0x10/0x10 [ 87.171421][ T68] ? ret_from_fork_asm+0x1a/0x30 [ 87.173511][ T68] ? ext4_block_to_path+0x382/0x700 [ 87.175699][ T68] ext4_ind_map_blocks+0xe96/0x22a0 [ 87.177991][ T68] ? __pfx_ext4_ind_map_blocks+0x10/0x10 [ 87.180308][ T68] ? kasan_save_track+0x4f/0x80 [ 87.182481][ T68] ? ext4_map_blocks+0x7cc/0x1240 [ 87.184521][ T68] ? down_write+0x16d/0x200 [ 87.186531][ T68] ext4_map_create_blocks+0xbb/0x530 [ 87.188829][ T68] ? ext4_fc_track_inode+0xf3/0x3f0 [ 87.191045][ T68] ext4_map_blocks+0x7e4/0x1240 [ 87.193163][ T68] ? __pfx_ext4_map_blocks+0x10/0x10 [ 87.195517][ T68] ? __ext4_journal_ensure_credits+0x30/0x450 [ 87.198138][ T68] ext4_do_writepages+0x19e3/0x47a0 [ 87.200417][ T68] ? __pfx_ext4_do_writepages+0x10/0x10 [ 87.202846][ T68] ? __lock_acquire+0x683/0x2cf0 [ 87.205028][ T68] ? filemap_get_folios_tag+0x118/0x720 [ 87.207514][ T68] ? filemap_get_folios_tag+0x639/0x720 [ 87.210166][ T68] ? filemap_get_folios_tag+0x118/0x720 [ 87.212660][ T68] ? __pfx_filemap_get_folios_tag+0x10/0x10 [ 87.215317][ T68] ? ext4_writepages+0x205/0x3b0 [ 87.217393][ T68] ? ext4_writepages+0x205/0x3b0 [ 87.219593][ T68] ext4_writepages+0x241/0x3b0 [ 87.221737][ T68] ? __pfx_ext4_writepages+0x10/0x10 [ 87.224098][ T68] ? __pfx___ext4_get_inode_loc+0x10/0x10 [ 87.226632][ T68] ? __pfx_ext4_writepages+0x10/0x10 [ 87.228881][ T68] do_writepages+0x338/0x560 [ 87.230716][ T68] ? reacquire_held_locks+0x104/0x190 [ 87.233042][ T68] ? writeback_sb_inodes+0x450/0x1b00 [ 87.235405][ T68] __writeback_single_inode+0x12e/0xf90 [ 87.237917][ T68] writeback_sb_inodes+0x9de/0x1b00 [ 87.240053][ T68] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 87.242136][ T68] ? __pfx_down_read_trylock+0x10/0x10 [ 87.244156][ T68] __writeback_inodes_wb+0x114/0x240 [ 87.246325][ T68] wb_writeback+0x42f/0xad0 [ 87.248274][ T68] ? queue_io+0x201/0x470 [ 87.250162][ T68] ? __pfx_wb_writeback+0x10/0x10 [ 87.252433][ T68] ? do_raw_spin_lock+0x12b/0x2f0 [ 87.254583][ T68] ? process_scheduled_works+0xa20/0x14e0 [ 87.257214][ T68] wb_workfn+0x980/0x10f0 [ 87.258885][ T68] ? __pfx_wb_workfn+0x10/0x10 [ 87.260886][ T68] ? rcu_is_watching+0x15/0xb0 [ 87.262975][ T68] ? trace_hrtimer_start+0x82/0x200 [ 87.265234][ T68] ? do_raw_spin_lock+0x12b/0x2f0 [ 87.267325][ T68] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 87.269610][ T68] ? process_scheduled_works+0xa20/0x14e0 [ 87.272086][ T68] ? rcu_is_watching+0x15/0xb0 [ 87.274140][ T68] ? process_scheduled_works+0xa20/0x14e0 [ 87.276553][ T68] process_scheduled_works+0xa8e/0x14e0 [ 87.278879][ T68] ? __pfx_process_scheduled_works+0x10/0x10 [ 87.281444][ T68] ? assign_work+0x3cf/0x5d0 [ 87.283440][ T68] worker_thread+0xa47/0xfb0 [ 87.285536][ T68] ? __kthread_parkme+0x71/0x1f0 [ 87.287677][ T68] kthread+0x388/0x470 [ 87.289487][ T68] ? __pfx_worker_thread+0x10/0x10 [ 87.291752][ T68] ? __pfx_kthread+0x10/0x10 [ 87.293682][ T68] ret_from_fork+0x514/0xb70 [ 87.295633][ T68] ? __pfx_ret_from_fork+0x10/0x10 [ 87.297755][ T68] ? __switch_to+0xc89/0x1420 [ 87.299724][ T68] ? __pfx_kthread+0x10/0x10 [ 87.301779][ T68] ret_from_fork_asm+0x1a/0x30 [ 87.303852][ T68] [ 87.305217][ T68] Modules linked in: [ 87.307371][ T68] ---[ end trace 0000000000000000 ]--- [ 87.310072][ T68] RIP: 0010:ext4_mb_use_inode_pa+0x6bf/0x720 [ 87.312808][ T68] Code: e8 16 81 a3 ff 48 ba 00 00 00 00 00 fc ff df e9 d7 fa ff ff e8 42 4f 34 ff 90 0f 0b e8 3a 4f 34 ff 90 0f 0b e8 32 4f 34 ff 90 <0f> 0b e8 2a 4f 34 ff 90 0f 0b 48 8b 0c 24 48 83 c1 54 80 e1 07 80 [ 87.320825][ T68] RSP: 0018:ffffc90000ade560 EFLAGS: 00010293 [ 87.323430][ T68] RAX: ffffffff8292d5ee RBX: 00000000ffffffd8 RCX: ffff888000e6ca80 [ 87.326241][ T68] RDX: 0000000000000000 RSI: 0000000000000034 RDI: 000000000000000c [ 87.329037][ T68] RBP: 1ffff110087ba8b5 R08: ffff888043dd8b5b R09: 1ffff110087bb16b [ 87.331956][ T68] R10: dffffc0000000000 R11: ffffed10087bb16c R12: 0000000000000000 [ 87.334812][ T68] R13: 0000000000000034 R14: 1ffff110087bb16e R15: ffff888043dd8b70 [ 87.337478][ T68] FS: 0000000000000000(0000) GS:ffff88808c53f000(0000) knlGS:0000000000000000 [ 87.340541][ T68] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.343034][ T68] CR2: 00007f679cd6aa3c CR3: 0000000012a06000 CR4: 0000000000352ef0 [ 87.346109][ T68] Kernel panic - not syncing: Fatal exception [ 87.348983][ T68] Kernel Offset: disabled [ 87.350761][ T68] Rebooting in 86400 seconds..