program: syz_mount_image$ext4(&(0x7f0000000500)='ext4\x00', &(0x7f0000000480)='./file0\x00', 0x0, &(0x7f00000004c0)={[{}]}, 0x1, 0x463, &(0x7f0000000540)="$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") r0 = open(&(0x7f0000000180)='./bus\x00', 0x4a37e, 0x4) r1 = open(&(0x7f0000000040)='./bus\x00', 0x46342, 0x0) ftruncate(r1, 0x2008002) mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x8088e3ad122bc192, 0x4002011, r0, 0x1000000) r2 = openat$fuse(0xffffffffffffff9c, &(0x7f0000000080), 0x2, 0x0) read$FUSE(r0, &(0x7f00000014c0)={0x2020, 0x0, 0x0}, 0x2020) write$FUSE_DIRENT(r2, &(0x7f0000003500)={0xd8, 0xffffffffffffffda, r3, [{0x5, 0x3f, 0x4, 0x4, ',-@/'}, {0x6, 0x9, 0xc, 0xb, '/dev/nullb0\x00'}, {0x2, 0x0, 0x1, 0x2, '}'}, {0x4, 0x7, 0xc, 0x261c, '/dev/nullb0\x00'}, {0x1, 0x0, 0x1, 0xfffffffd, '@'}, {0x6, 0x5, 0x0, 0x6}]}, 0xd8) r4 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0x4000000004882, 0x0) io_setup(0x1, &(0x7f00000004c0)=0x0) io_submit(r5, 0xca, &(0x7f00000000c0)=[&(0x7f0000000140)={0x3a0012fb, 0x2759, 0x7, 0x0, 0x0, r4, &(0x7f0000000000)="98", 0x3e8000072a, 0x1000000, 0x0, 0x10}]) [ 85.684010][ T4660] Bluetooth: hci0: command tx timeout [ 85.764295][ T5331] loop0: detected capacity change from 0 to 512 [ 85.855488][ T5331] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 85.996121][ T5331] EXT4-fs error (device loop0): ext4_validate_block_bitmap:441: comm syz.0.0: bg 0: block 392: padding at end of block bitmap is not set [ 86.011047][ T13] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 16384 with max blocks 96 with error 28 [ 86.018378][ T13] EXT4-fs (loop0): This should not happen!! Data will be lost [ 86.018378][ T13] [ 86.022513][ T13] EXT4-fs (loop0): Total free blocks count 0 [ 86.025121][ T13] EXT4-fs (loop0): Free/Dirty block details [ 86.028563][ T13] EXT4-fs (loop0): free_blocks=0 [ 86.031520][ T13] EXT4-fs (loop0): dirty_blocks=96 [ 86.033727][ T13] EXT4-fs (loop0): Block reservation details [ 86.037022][ T13] EXT4-fs (loop0): i_reserved_data_blocks=96 [ 86.043796][ T5331] ------------[ cut here ]------------ [ 86.046396][ T5331] !folio_buffers(folio) [ 86.046406][ T5331] WARNING: fs/ext4/inode.c:3938 at ext4_dirty_folio+0x167/0x1b0, CPU#0: syz.0.0/5331 [ 86.053007][ T5331] Modules linked in: [ 86.054968][ T5331] CPU: 0 UID: 0 PID: 5331 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 86.058881][ T5331] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 86.063003][ T5331] RIP: 0010:ext4_dirty_folio+0x167/0x1b0 [ 86.065456][ T5331] Code: af f6 a7 ff 49 83 3f 00 74 1a e8 54 11 3b ff 4c 89 e7 48 89 de 5b 41 5c 41 5d 41 5e 41 5f 5d e9 4f 92 cd ff e8 3a 11 3b ff 90 <0f> 0b 90 eb e0 e8 2f 11 3b ff 90 0f 0b 90 eb a7 e8 24 11 3b ff 48 [ 86.074558][ T5331] RSP: 0018:ffffc900036ef520 EFLAGS: 00010283 [ 86.077335][ T5331] RAX: ffffffff828ab5d6 RBX: ffffea00013debc0 RCX: 0000000000100000 [ 86.080780][ T5331] RDX: ffffc90020802000 RSI: 00000000000076bb RDI: 00000000000076bc [ 86.084319][ T5331] RBP: 1ffffd400027bd78 R08: ffffea00013debc7 R09: 1ffffd400027bd78 [ 86.087837][ T5331] R10: dffffc0000000000 R11: fffff9400027bd79 R12: ffff888046370450 [ 86.091221][ T5331] R13: 1ffffd400027bd79 R14: 0000000000000001 R15: ffffea00013debe8 [ 86.094331][ T5331] FS: 00007f4582d366c0(0000) GS:ffff88808c894000(0000) knlGS:0000000000000000 [ 86.097797][ T5331] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.100310][ T5331] CR2: 00007f4582cf4000 CR3: 000000001fb3f000 CR4: 0000000000352ef0 [ 86.103320][ T5331] Call Trace: [ 86.104678][ T5331] [ 86.105817][ T5331] bio_set_pages_dirty+0x38e/0xaa0 [ 86.107891][ T5331] __blkdev_direct_IO+0x859/0xfa0 [ 86.110111][ T5331] ? __pfx_aio_complete_rw+0x10/0x10 [ 86.112833][ T5331] ? __pfx___blkdev_direct_IO+0x10/0x10 [ 86.115347][ T5331] blkdev_direct_IO+0x121a/0x1790 [ 86.117722][ T5331] ? do_raw_spin_lock+0x12b/0x2f0 [ 86.119942][ T5331] ? __pfx_blkdev_direct_IO+0x10/0x10 [ 86.122136][ T5331] ? reacquire_held_locks+0x104/0x190 [ 86.124439][ T5331] ? __mark_inode_dirty+0x6ec/0x13b0 [ 86.126883][ T5331] ? blkdev_read_iter+0x210/0x440 [ 86.129061][ T5331] ? touch_atime+0x379/0x6b0 [ 86.131043][ T5331] ? blkdev_read_iter+0x210/0x440 [ 86.133187][ T5331] blkdev_read_iter+0x23d/0x440 [ 86.135186][ T5331] aio_read+0x33a/0x4d0 [ 86.137056][ T5331] ? __pfx_aio_read+0x10/0x10 [ 86.139242][ T5331] ? __might_fault+0xaf/0x130 [ 86.141205][ T5331] io_submit_one+0x79d/0x14c0 [ 86.143295][ T5331] ? lockdep_hardirqs_on+0x7a/0x110 [ 86.145626][ T5331] ? __pfx_io_submit_one+0x10/0x10 [ 86.147958][ T5331] ? __might_fault+0xaf/0x130 [ 86.150420][ T5331] ? __might_fault+0xaf/0x130 [ 86.152763][ T5331] __se_sys_io_submit+0x195/0x340 [ 86.154833][ T5331] ? __pfx___se_sys_io_submit+0x10/0x10 [ 86.157319][ T5331] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.159930][ T5331] do_syscall_64+0x174/0x580 [ 86.161957][ T5331] ? trace_irq_disable+0x3b/0x140 [ 86.164234][ T5331] ? clear_bhb_loop+0x40/0x90 [ 86.166372][ T5331] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.168868][ T5331] RIP: 0033:0x7f4581d9ce59 [ 86.170723][ T5331] 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 [ 86.178707][ T5331] RSP: 002b:00007f4582d35fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 86.182000][ T5331] RAX: ffffffffffffffda RBX: 00007f4582015fa0 RCX: 00007f4581d9ce59 [ 86.185315][ T5331] RDX: 00002000000000c0 RSI: 00000000000000ca RDI: 00007f4582cf4000 [ 86.188930][ T5331] RBP: 00007f4581e32d6f R08: 0000000000000000 R09: 0000000000000000 [ 86.192351][ T5331] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.195787][ T5331] R13: 00007f4582016038 R14: 00007f4582015fa0 R15: 00007ffde97f08f8 [ 86.199185][ T5331] [ 86.200537][ T5331] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 86.203496][ T5331] CPU: 0 UID: 0 PID: 5331 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 86.206979][ T5331] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 86.210916][ T5331] Call Trace: [ 86.212363][ T5331] [ 86.213719][ T5331] vpanic+0x56c/0xa60 [ 86.215410][ T5331] ? __pfx__printk+0x10/0x10 [ 86.217387][ T5331] ? __pfx_vpanic+0x10/0x10 [ 86.219260][ T5331] ? is_bpf_text_address+0x292/0x2b0 [ 86.221417][ T5331] ? is_bpf_text_address+0x26/0x2b0 [ 86.223770][ T5331] panic+0xc5/0xd0 [ 86.225395][ T5331] ? __pfx_panic+0x10/0x10 [ 86.227377][ T5331] __warn+0x315/0x4c0 [ 86.229089][ T5331] ? ext4_dirty_folio+0x167/0x1b0 [ 86.231307][ T5331] ? ext4_dirty_folio+0x167/0x1b0 [ 86.233407][ T5331] __report_bug+0x29a/0x540 [ 86.235381][ T5331] ? ext4_dirty_folio+0x167/0x1b0 [ 86.237465][ T5331] ? __pfx___report_bug+0x10/0x10 [ 86.239646][ T5331] ? __pfx_gup_fast_fallback+0x10/0x10 [ 86.242043][ T5331] ? blkg_tryget+0x20/0x250 [ 86.244077][ T5331] ? is_valid_gup_args+0x11f/0x200 [ 86.246351][ T5331] ? pin_user_pages_fast+0x4d/0xb0 [ 86.248557][ T5331] ? ext4_dirty_folio+0x167/0x1b0 [ 86.250776][ T5331] report_bug+0x16a/0x220 [ 86.252653][ T5331] ? ext4_dirty_folio+0x167/0x1b0 [ 86.254869][ T5331] ? ext4_dirty_folio+0x169/0x1b0 [ 86.257074][ T5331] handle_bug+0x9c/0x200 [ 86.258942][ T5331] exc_invalid_op+0x1a/0x50 [ 86.260918][ T5331] asm_exc_invalid_op+0x1a/0x20 [ 86.263082][ T5331] RIP: 0010:ext4_dirty_folio+0x167/0x1b0 [ 86.265496][ T5331] Code: af f6 a7 ff 49 83 3f 00 74 1a e8 54 11 3b ff 4c 89 e7 48 89 de 5b 41 5c 41 5d 41 5e 41 5f 5d e9 4f 92 cd ff e8 3a 11 3b ff 90 <0f> 0b 90 eb e0 e8 2f 11 3b ff 90 0f 0b 90 eb a7 e8 24 11 3b ff 48 [ 86.273307][ T5331] RSP: 0018:ffffc900036ef520 EFLAGS: 00010283 [ 86.275843][ T5331] RAX: ffffffff828ab5d6 RBX: ffffea00013debc0 RCX: 0000000000100000 [ 86.279075][ T5331] RDX: ffffc90020802000 RSI: 00000000000076bb RDI: 00000000000076bc [ 86.281974][ T5331] RBP: 1ffffd400027bd78 R08: ffffea00013debc7 R09: 1ffffd400027bd78 [ 86.285204][ T5331] R10: dffffc0000000000 R11: fffff9400027bd79 R12: ffff888046370450 [ 86.288288][ T5331] R13: 1ffffd400027bd79 R14: 0000000000000001 R15: ffffea00013debe8 [ 86.291726][ T5331] ? ext4_dirty_folio+0x166/0x1b0 [ 86.293939][ T5331] bio_set_pages_dirty+0x38e/0xaa0 [ 86.296268][ T5331] __blkdev_direct_IO+0x859/0xfa0 [ 86.298889][ T5331] ? __pfx_aio_complete_rw+0x10/0x10 [ 86.301414][ T5331] ? __pfx___blkdev_direct_IO+0x10/0x10 [ 86.303785][ T5331] blkdev_direct_IO+0x121a/0x1790 [ 86.305845][ T5331] ? do_raw_spin_lock+0x12b/0x2f0 [ 86.308051][ T5331] ? __pfx_blkdev_direct_IO+0x10/0x10 [ 86.310330][ T5331] ? reacquire_held_locks+0x104/0x190 [ 86.312622][ T5331] ? __mark_inode_dirty+0x6ec/0x13b0 [ 86.314922][ T5331] ? blkdev_read_iter+0x210/0x440 [ 86.317016][ T5331] ? touch_atime+0x379/0x6b0 [ 86.319010][ T5331] ? blkdev_read_iter+0x210/0x440 [ 86.321290][ T5331] blkdev_read_iter+0x23d/0x440 [ 86.323291][ T5331] aio_read+0x33a/0x4d0 [ 86.325151][ T5331] ? __pfx_aio_read+0x10/0x10 [ 86.327237][ T5331] ? __might_fault+0xaf/0x130 [ 86.329283][ T5331] io_submit_one+0x79d/0x14c0 [ 86.331375][ T5331] ? lockdep_hardirqs_on+0x7a/0x110 [ 86.333583][ T5331] ? __pfx_io_submit_one+0x10/0x10 [ 86.335783][ T5331] ? __might_fault+0xaf/0x130 [ 86.337901][ T5331] ? __might_fault+0xaf/0x130 [ 86.339948][ T5331] __se_sys_io_submit+0x195/0x340 [ 86.342139][ T5331] ? __pfx___se_sys_io_submit+0x10/0x10 [ 86.344553][ T5331] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.347188][ T5331] do_syscall_64+0x174/0x580 [ 86.349149][ T5331] ? trace_irq_disable+0x3b/0x140 [ 86.351541][ T5331] ? clear_bhb_loop+0x40/0x90 [ 86.353757][ T5331] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.356069][ T5331] RIP: 0033:0x7f4581d9ce59 [ 86.357942][ T5331] 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 [ 86.366212][ T5331] RSP: 002b:00007f4582d35fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 86.369762][ T5331] RAX: ffffffffffffffda RBX: 00007f4582015fa0 RCX: 00007f4581d9ce59 [ 86.372994][ T5331] RDX: 00002000000000c0 RSI: 00000000000000ca RDI: 00007f4582cf4000 [ 86.376320][ T5331] RBP: 00007f4581e32d6f R08: 0000000000000000 R09: 0000000000000000 [ 86.379670][ T5331] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.383101][ T5331] R13: 00007f4582016038 R14: 00007f4582015fa0 R15: 00007ffde97f08f8 [ 86.386536][ T5331] [ 86.388148][ T5331] Kernel Offset: disabled [ 86.389943][ T5331] Rebooting in 86400 seconds..