program: syz_mount_image$ext4(&(0x7f0000000500)='ext4\x00', &(0x7f0000000480)='./file0\x00', 0x0, &(0x7f00000004c0)={[{}]}, 0x1, 0x45c, &(0x7f0000000540)="$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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$nullb(0xffffffffffffff9c, &(0x7f0000000100), 0x4000000004882, 0x0) io_setup(0x1, &(0x7f00000004c0)=0x0) io_submit(r3, 0xca, &(0x7f00000000c0)=[&(0x7f0000000140)={0x3a0012fb, 0x2759, 0x7, 0x0, 0x0, r2, &(0x7f0000000000)="98", 0x3e8000072a, 0x1000000, 0x0, 0x10}]) [ 83.782251][ T4661] Bluetooth: hci0: command tx timeout [ 83.895639][ T5334] loop0: detected capacity change from 0 to 512 [ 84.013030][ T5334] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 84.184268][ T5335] EXT4-fs error (device loop0): ext4_validate_block_bitmap:441: comm syz.0.0: bg 0: block 281: padding at end of block bitmap is not set [ 84.225515][ T12] EXT4-fs (loop0): Delayed block allocation failed for inode 18 at logical offset 16384 with max blocks 96 with error 28 [ 84.251083][ T12] EXT4-fs (loop0): This should not happen!! Data will be lost [ 84.251083][ T12] [ 84.260260][ T12] EXT4-fs (loop0): Total free blocks count 0 [ 84.268856][ T12] EXT4-fs (loop0): Free/Dirty block details [ 84.273770][ T12] EXT4-fs (loop0): free_blocks=0 [ 84.278573][ T12] EXT4-fs (loop0): dirty_blocks=96 [ 84.283033][ T12] EXT4-fs (loop0): Block reservation details [ 84.288123][ T12] EXT4-fs (loop0): i_reserved_data_blocks=96 [ 84.302272][ T5335] ------------[ cut here ]------------ [ 84.304788][ T5335] !folio_buffers(folio) [ 84.304798][ T5335] WARNING: fs/ext4/inode.c:3938 at ext4_dirty_folio+0x167/0x1b0, CPU#0: syz.0.0/5335 [ 84.311054][ T5335] Modules linked in: [ 84.312873][ T5335] CPU: 0 UID: 0 PID: 5335 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 84.316858][ T5335] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 84.321173][ T5335] RIP: 0010:ext4_dirty_folio+0x167/0x1b0 [ 84.323526][ T5335] Code: 6f fa a7 ff 49 83 3f 00 74 1a e8 d4 13 3b ff 4c 89 e7 48 89 de 5b 41 5c 41 5d 41 5e 41 5f 5d e9 7f 93 cd ff e8 ba 13 3b ff 90 <0f> 0b 90 eb e0 e8 af 13 3b ff 90 0f 0b 90 eb a7 e8 a4 13 3b ff 48 [ 84.331433][ T5335] RSP: 0018:ffffc9000e37f520 EFLAGS: 00010287 [ 84.334106][ T5335] RAX: ffffffff828ab256 RBX: ffffea00004cc5c0 RCX: 0000000000100000 [ 84.337439][ T5335] RDX: ffffc90020001000 RSI: 0000000000008258 RDI: 0000000000008259 [ 84.340649][ T5335] RBP: 1ffffd40000998b8 R08: ffffea00004cc5c7 R09: 1ffffd40000998b8 [ 84.343833][ T5335] R10: dffffc0000000000 R11: fffff940000998b9 R12: ffff888047951700 [ 84.347282][ T5335] R13: 1ffffd40000998b9 R14: 0000000000000001 R15: ffffea00004cc5e8 [ 84.350731][ T5335] FS: 00007fb71c7fc6c0(0000) GS:ffff88808c891000(0000) knlGS:0000000000000000 [ 84.354523][ T5335] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.357470][ T5335] CR2: 00007f8de6d4b2c0 CR3: 0000000041404000 CR4: 0000000000352ef0 [ 84.360727][ T5335] Call Trace: [ 84.362090][ T5335] [ 84.363280][ T5335] bio_set_pages_dirty+0x38e/0xaa0 [ 84.365160][ T5335] __blkdev_direct_IO+0x859/0xfa0 [ 84.367532][ T5335] ? __pfx_aio_complete_rw+0x10/0x10 [ 84.370023][ T5335] ? __pfx___blkdev_direct_IO+0x10/0x10 [ 84.372462][ T5335] blkdev_direct_IO+0x121a/0x1790 [ 84.374393][ T5335] ? do_raw_spin_lock+0x12b/0x2f0 [ 84.376648][ T5335] ? __pfx_blkdev_direct_IO+0x10/0x10 [ 84.378804][ T5335] ? reacquire_held_locks+0x104/0x190 [ 84.380932][ T5335] ? __mark_inode_dirty+0x6ec/0x13b0 [ 84.383060][ T5335] ? blkdev_read_iter+0x210/0x440 [ 84.385245][ T5335] ? touch_atime+0x379/0x6b0 [ 84.387304][ T5335] ? blkdev_read_iter+0x210/0x440 [ 84.389436][ T5335] blkdev_read_iter+0x23d/0x440 [ 84.391535][ T5335] aio_read+0x33a/0x4d0 [ 84.393300][ T5335] ? __pfx_aio_read+0x10/0x10 [ 84.395295][ T5335] ? __might_fault+0xaf/0x130 [ 84.397500][ T5335] io_submit_one+0x79d/0x14c0 [ 84.399654][ T5335] ? lockdep_hardirqs_on+0x7a/0x110 [ 84.401817][ T5335] ? __pfx_io_submit_one+0x10/0x10 [ 84.403954][ T5335] ? __might_fault+0xaf/0x130 [ 84.405914][ T5335] ? __might_fault+0xaf/0x130 [ 84.408074][ T5335] __se_sys_io_submit+0x195/0x340 [ 84.410164][ T5335] ? __pfx___se_sys_io_submit+0x10/0x10 [ 84.412714][ T5335] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.415145][ T5335] do_syscall_64+0x174/0x580 [ 84.417156][ T5335] ? trace_irq_disable+0x3b/0x140 [ 84.419234][ T5335] ? clear_bhb_loop+0x40/0x90 [ 84.421071][ T5335] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.423558][ T5335] RIP: 0033:0x7fb71b99ce59 [ 84.425337][ T5335] 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 [ 84.433162][ T5335] RSP: 002b:00007fb71c7fbfe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 84.436797][ T5335] RAX: ffffffffffffffda RBX: 00007fb71bc16090 RCX: 00007fb71b99ce59 [ 84.440147][ T5335] RDX: 00002000000000c0 RSI: 00000000000000ca RDI: 00007fb71c7db000 [ 84.443260][ T5335] RBP: 00007fb71ba32d6f R08: 0000000000000000 R09: 0000000000000000 [ 84.446836][ T5335] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 84.450436][ T5335] R13: 00007fb71bc16128 R14: 00007fb71bc16090 R15: 00007ffc6beb6878 [ 84.454099][ T5335] [ 84.455429][ T5335] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 84.458474][ T5335] CPU: 0 UID: 0 PID: 5335 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 84.462177][ T5335] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 84.466395][ T5335] Call Trace: [ 84.468250][ T5335] [ 84.469486][ T5335] vpanic+0x56c/0xa60 [ 84.471106][ T5335] ? __pfx__printk+0x10/0x10 [ 84.472966][ T5335] ? __pfx_vpanic+0x10/0x10 [ 84.474804][ T5335] ? is_bpf_text_address+0x292/0x2b0 [ 84.476812][ T5335] ? is_bpf_text_address+0x26/0x2b0 [ 84.479017][ T5335] panic+0xc5/0xd0 [ 84.480571][ T5335] ? __pfx_panic+0x10/0x10 [ 84.482256][ T5335] __warn+0x315/0x4c0 [ 84.483869][ T5335] ? ext4_dirty_folio+0x167/0x1b0 [ 84.485843][ T5335] ? ext4_dirty_folio+0x167/0x1b0 [ 84.487838][ T5335] __report_bug+0x29a/0x540 [ 84.489737][ T5335] ? ext4_dirty_folio+0x167/0x1b0 [ 84.491818][ T5335] ? __pfx___report_bug+0x10/0x10 [ 84.493939][ T5335] ? __pfx_gup_fast_fallback+0x10/0x10 [ 84.496511][ T5335] ? blkg_tryget+0x20/0x250 [ 84.499036][ T5335] ? is_valid_gup_args+0x11f/0x200 [ 84.501321][ T5335] ? pin_user_pages_fast+0x4d/0xb0 [ 84.503499][ T5335] ? ext4_dirty_folio+0x167/0x1b0 [ 84.505689][ T5335] report_bug+0x16a/0x220 [ 84.507426][ T5335] ? ext4_dirty_folio+0x167/0x1b0 [ 84.509416][ T5335] ? ext4_dirty_folio+0x169/0x1b0 [ 84.511464][ T5335] handle_bug+0x9c/0x200 [ 84.513215][ T5335] exc_invalid_op+0x1a/0x50 [ 84.515093][ T5335] asm_exc_invalid_op+0x1a/0x20 [ 84.517070][ T5335] RIP: 0010:ext4_dirty_folio+0x167/0x1b0 [ 84.519295][ T5335] Code: 6f fa a7 ff 49 83 3f 00 74 1a e8 d4 13 3b ff 4c 89 e7 48 89 de 5b 41 5c 41 5d 41 5e 41 5f 5d e9 7f 93 cd ff e8 ba 13 3b ff 90 <0f> 0b 90 eb e0 e8 af 13 3b ff 90 0f 0b 90 eb a7 e8 a4 13 3b ff 48 [ 84.527100][ T5335] RSP: 0018:ffffc9000e37f520 EFLAGS: 00010287 [ 84.529675][ T5335] RAX: ffffffff828ab256 RBX: ffffea00004cc5c0 RCX: 0000000000100000 [ 84.533040][ T5335] RDX: ffffc90020001000 RSI: 0000000000008258 RDI: 0000000000008259 [ 84.536180][ T5335] RBP: 1ffffd40000998b8 R08: ffffea00004cc5c7 R09: 1ffffd40000998b8 [ 84.539204][ T5335] R10: dffffc0000000000 R11: fffff940000998b9 R12: ffff888047951700 [ 84.542300][ T5335] R13: 1ffffd40000998b9 R14: 0000000000000001 R15: ffffea00004cc5e8 [ 84.545503][ T5335] ? ext4_dirty_folio+0x166/0x1b0 [ 84.547618][ T5335] bio_set_pages_dirty+0x38e/0xaa0 [ 84.549815][ T5335] __blkdev_direct_IO+0x859/0xfa0 [ 84.551935][ T5335] ? __pfx_aio_complete_rw+0x10/0x10 [ 84.554188][ T5335] ? __pfx___blkdev_direct_IO+0x10/0x10 [ 84.556472][ T5335] blkdev_direct_IO+0x121a/0x1790 [ 84.558490][ T5335] ? do_raw_spin_lock+0x12b/0x2f0 [ 84.560569][ T5335] ? __pfx_blkdev_direct_IO+0x10/0x10 [ 84.562712][ T5335] ? reacquire_held_locks+0x104/0x190 [ 84.564833][ T5335] ? __mark_inode_dirty+0x6ec/0x13b0 [ 84.567102][ T5335] ? blkdev_read_iter+0x210/0x440 [ 84.569182][ T5335] ? touch_atime+0x379/0x6b0 [ 84.571051][ T5335] ? blkdev_read_iter+0x210/0x440 [ 84.573138][ T5335] blkdev_read_iter+0x23d/0x440 [ 84.575158][ T5335] aio_read+0x33a/0x4d0 [ 84.576830][ T5335] ? __pfx_aio_read+0x10/0x10 [ 84.578736][ T5335] ? __might_fault+0xaf/0x130 [ 84.580707][ T5335] io_submit_one+0x79d/0x14c0 [ 84.582567][ T5335] ? lockdep_hardirqs_on+0x7a/0x110 [ 84.584675][ T5335] ? __pfx_io_submit_one+0x10/0x10 [ 84.586654][ T5335] ? __might_fault+0xaf/0x130 [ 84.588499][ T5335] ? __might_fault+0xaf/0x130 [ 84.590315][ T5335] __se_sys_io_submit+0x195/0x340 [ 84.592284][ T5335] ? __pfx___se_sys_io_submit+0x10/0x10 [ 84.594455][ T5335] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.597064][ T5335] do_syscall_64+0x174/0x580 [ 84.599077][ T5335] ? trace_irq_disable+0x3b/0x140 [ 84.601263][ T5335] ? clear_bhb_loop+0x40/0x90 [ 84.603298][ T5335] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.605773][ T5335] RIP: 0033:0x7fb71b99ce59 [ 84.607740][ T5335] 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 [ 84.615213][ T5335] RSP: 002b:00007fb71c7fbfe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 84.618516][ T5335] RAX: ffffffffffffffda RBX: 00007fb71bc16090 RCX: 00007fb71b99ce59 [ 84.622677][ T5335] RDX: 00002000000000c0 RSI: 00000000000000ca RDI: 00007fb71c7db000 [ 84.626771][ T5335] RBP: 00007fb71ba32d6f R08: 0000000000000000 R09: 0000000000000000 [ 84.630031][ T5335] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 84.633167][ T5335] R13: 00007fb71bc16128 R14: 00007fb71bc16090 R15: 00007ffc6beb6878 [ 84.636203][ T5335] [ 84.637761][ T5335] Kernel Offset: disabled [ 84.639530][ T5335] Rebooting in 86400 seconds..