program:
syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000240)='./bus\x00', 0x8008, &(0x7f0000000100)=ANY=[@ANYRES64=0x0], 0xf, 0xab, &(0x7f0000010140)="$eJzs1zGKwkAYBeB/s7CbdptFsLBO4x08ilhqI1aK4A3Ei3gVj5DewiKtiCOYiIidRQT5vmLgzWPgtbM7brubIiKtIlLRme7T3Wy+GA8n9Rl8pCwifiMij4jeX50Pg7r7avqyWo7K6vv58c+69b0AAMDrsug/5nNqLk7NL/Aa/m993vI+AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgHe7BAAA//+dfyiL")
r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000200)='rdma.current\x00', 0x275a, 0x0)
write$binfmt_script(r0, &(0x7f00000008c0), 0xfecc)
r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000000c0)='memory.events\x00', 0x275a, 0x0)
write$binfmt_script(r1, &(0x7f0000000140)={'#! ', '', [{0x20, '-'}, {0x20, '\xe8\xba'}, {0x20, 'bfs\x00'}, {}, {0x20, '#! '}, {0x20, 'rdma.current\x00'}, {0x20, 'memory.evK\xa8\x97s\r'}, {0x20, 'bfs\x00'}, {0x20, 'me\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00i\xd5;\xc4\x19\xc4\v\xd0\xa3\x1d\x19m\x93\xabnsQ\t\"_\xf2\x82\t+0E\x81<\x0eV\xde\xdc\xec\xbab\xb5@\xcd\x84\xf5\xeeL\x00\x1b\xb1\xa5WL\x9da9\xdf\xe6I\xa5wW\x9eSa6=\xcf\xb7#`W\x83%:\x13c\xc9/\xc6\xdax\x9bl\xa4I\x1d\xe4\xb5\xcb\xb71)\xda~\xac\xf7&\xc7\x1eh\x00\x00\x00\x00\x00\x00\x00\x00'}]}, 0xac)

[   90.270322][ T4681] Bluetooth: hci0: command tx timeout
[   90.332820][ T5336] loop0: detected capacity change from 0 to 64
[   90.500920][ T5336] ------------[ cut here ]------------
[   90.504516][ T5336] !buffer_uptodate(bh)
[   90.504532][ T5336] WARNING: fs/buffer.c:1080 at mark_buffer_dirty+0x299/0x410, CPU#0: syz.0.0/5336
[   90.511750][ T5336] Modules linked in:
[   90.514743][ T5336] CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
[   90.518939][ T5336] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   90.524488][ T5336] RIP: 0010:mark_buffer_dirty+0x299/0x410
[   90.528351][ T5336] Code: 4c 89 f7 e8 b9 62 da ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 44 63 fb ff e8 5f 99 6d ff eb 8c e8 58 99 6d ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 4a 99 6d ff 90 0f 0b 90 e9 cf fd ff ff
[   90.540152][ T5336] RSP: 0018:ffffc9000f24f608 EFLAGS: 00010283
[   90.543513][ T5336] RAX: ffffffff82584568 RBX: ffff88800e4fc658 RCX: 0000000000100000
[   90.548182][ T5336] RDX: ffffc90020001000 RSI: 00000000000016c0 RDI: 00000000000016c1
[   90.552327][ T5336] RBP: ffff888040fde001 R08: ffff88800e4fc65f R09: 1ffff11001c9f8cb
[   90.556522][ T5336] R10: dffffc0000000000 R11: ffffed1001c9f8cc R12: ffff888023e8d600
[   90.560639][ T5336] R13: ffff888047ad5e80 R14: ffff88800e4fc658 R15: 000000000000000a
[   90.564630][ T5336] FS:  00007fa97ceca6c0(0000) GS:ffff88808c812000(0000) knlGS:0000000000000000
[   90.569177][ T5336] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   90.572450][ T5336] CR2: 0000200000003000 CR3: 00000000383df000 CR4: 0000000000352ef0
[   90.576727][ T5336] Call Trace:
[   90.579165][ T5336]  <TASK>
[   90.581282][ T5336]  bfs_get_block+0x5da/0xae0
[   90.583978][ T5336]  __block_write_begin_int+0x6c6/0x1910
[   90.586796][ T5336]  ? __pfx_bfs_get_block+0x10/0x10
[   90.589297][ T5336]  ? __pfx___block_write_begin_int+0x10/0x10
[   90.592061][ T5336]  ? __pfx_bfs_get_block+0x10/0x10
[   90.594563][ T5336]  block_write_begin+0x8d/0x120
[   90.597103][ T5336]  ? bfs_write_begin+0x1e/0xd0
[   90.599346][ T5336]  bfs_write_begin+0x35/0xd0
[   90.601787][ T5336]  generic_perform_write+0x2e2/0x8f0
[   90.605021][ T5336]  ? __pfx_generic_perform_write+0x10/0x10
[   90.608051][ T5336]  ? file_update_time_flags+0x219/0x4a0
[   90.610823][ T5336]  ? __generic_file_write_iter+0xf9/0x230
[   90.613535][ T5336]  ? generic_file_write_iter+0x136/0x680
[   90.616328][ T5336]  generic_file_write_iter+0x14a/0x680
[   90.618974][ T5336]  ? __pfx_generic_file_write_iter+0x10/0x10
[   90.621871][ T5336]  ? irqentry_exit+0x218/0x730
[   90.624236][ T5336]  ? lockdep_hardirqs_on+0x7a/0x110
[   90.627377][ T5336]  ? irqentry_exit+0x218/0x730
[   90.630297][ T5336]  ? trace_irq_disable+0x3b/0x140
[   90.633178][ T5336]  ? vfs_write+0x227/0xb90
[   90.635396][ T5336]  vfs_write+0x61d/0xb90
[   90.637541][ T5336]  ? __pfx_vfs_write+0x10/0x10
[   90.639498][ T5336]  ? __fget_files+0x2a/0x420
[   90.641304][ T5336]  ksys_write+0x150/0x270
[   90.643242][ T5336]  ? __pfx_ksys_write+0x10/0x10
[   90.645118][ T5336]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   90.647909][ T5336]  do_syscall_64+0x15f/0xf80
[   90.650072][ T5336]  ? trace_irq_disable+0x3b/0x140
[   90.652709][ T5336]  ? clear_bhb_loop+0x40/0x90
[   90.655611][ T5336]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   90.658654][ T5336] RIP: 0033:0x7fa97bf9c819
[   90.660666][ T5336] 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
[   90.671335][ T5336] RSP: 002b:00007fa97cec9fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   90.675400][ T5336] RAX: ffffffffffffffda RBX: 00007fa97c215fa0 RCX: 00007fa97bf9c819
[   90.679359][ T5336] RDX: 000000000000fecc RSI: 00002000000008c0 RDI: 0000000000000004
[   90.683543][ T5336] RBP: 00007fa97c032c91 R08: 0000000000000000 R09: 0000000000000000
[   90.687871][ T5336] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   90.691445][ T5336] R13: 00007fa97c216038 R14: 00007fa97c215fa0 R15: 00007ffed20aa898
[   90.695077][ T5336]  </TASK>
[   90.696610][ T5336] Kernel panic - not syncing: kernel: panic_on_warn set ...
[   90.699875][ T5336] CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
[   90.703785][ T5336] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   90.707979][ T5336] Call Trace:
[   90.709396][ T5336]  <TASK>
[   90.710795][ T5336]  vpanic+0x56c/0xa60
[   90.712694][ T5336]  ? __pfx__printk+0x10/0x10
[   90.714935][ T5336]  ? __pfx_vpanic+0x10/0x10
[   90.717527][ T5336]  ? is_bpf_text_address+0x292/0x2b0
[   90.720920][ T5336]  ? is_bpf_text_address+0x26/0x2b0
[   90.723764][ T5336]  panic+0xc5/0xd0
[   90.725776][ T5336]  ? __pfx_panic+0x10/0x10
[   90.727839][ T5336]  __warn+0x315/0x4c0
[   90.729685][ T5336]  ? mark_buffer_dirty+0x299/0x410
[   90.731494][ T5336]  ? mark_buffer_dirty+0x299/0x410
[   90.733664][ T5336]  __report_bug+0x29a/0x540
[   90.735712][ T5336]  ? filemap_get_entry+0xcd/0x3f0
[   90.738253][ T5336]  ? filemap_get_entry+0xcd/0x3f0
[   90.741133][ T5336]  ? mark_buffer_dirty+0x299/0x410
[   90.744514][ T5336]  ? __pfx___report_bug+0x10/0x10
[   90.747429][ T5336]  ? __pfx_folio_mark_accessed+0x10/0x10
[   90.749753][ T5336]  ? mark_buffer_dirty+0x299/0x410
[   90.751951][ T5336]  report_bug+0x16a/0x220
[   90.753674][ T5336]  ? mark_buffer_dirty+0x299/0x410
[   90.755740][ T5336]  ? mark_buffer_dirty+0x29b/0x410
[   90.757820][ T5336]  handle_bug+0x9c/0x200
[   90.759809][ T5336]  exc_invalid_op+0x1a/0x50
[   90.762226][ T5336]  asm_exc_invalid_op+0x1a/0x20
[   90.764826][ T5336] RIP: 0010:mark_buffer_dirty+0x299/0x410
[   90.767899][ T5336] Code: 4c 89 f7 e8 b9 62 da ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 44 63 fb ff e8 5f 99 6d ff eb 8c e8 58 99 6d ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 4a 99 6d ff 90 0f 0b 90 e9 cf fd ff ff
[   90.776230][ T5336] RSP: 0018:ffffc9000f24f608 EFLAGS: 00010283
[   90.778740][ T5336] RAX: ffffffff82584568 RBX: ffff88800e4fc658 RCX: 0000000000100000
[   90.782058][ T5336] RDX: ffffc90020001000 RSI: 00000000000016c0 RDI: 00000000000016c1
[   90.787049][ T5336] RBP: ffff888040fde001 R08: ffff88800e4fc65f R09: 1ffff11001c9f8cb
[   90.792571][ T5336] R10: dffffc0000000000 R11: ffffed1001c9f8cc R12: ffff888023e8d600
[   90.795981][ T5336] R13: ffff888047ad5e80 R14: ffff88800e4fc658 R15: 000000000000000a
[   90.799574][ T5336]  ? mark_buffer_dirty+0x298/0x410
[   90.801865][ T5336]  ? mark_buffer_dirty+0x298/0x410
[   90.804177][ T5336]  bfs_get_block+0x5da/0xae0
[   90.806191][ T5336]  __block_write_begin_int+0x6c6/0x1910
[   90.808591][ T5336]  ? __pfx_bfs_get_block+0x10/0x10
[   90.811171][ T5336]  ? __pfx___block_write_begin_int+0x10/0x10
[   90.814418][ T5336]  ? __pfx_bfs_get_block+0x10/0x10
[   90.816819][ T5336]  block_write_begin+0x8d/0x120
[   90.818979][ T5336]  ? bfs_write_begin+0x1e/0xd0
[   90.821033][ T5336]  bfs_write_begin+0x35/0xd0
[   90.822940][ T5336]  generic_perform_write+0x2e2/0x8f0
[   90.825285][ T5336]  ? __pfx_generic_perform_write+0x10/0x10
[   90.828920][ T5336]  ? file_update_time_flags+0x219/0x4a0
[   90.831656][ T5336]  ? __generic_file_write_iter+0xf9/0x230
[   90.834293][ T5336]  ? generic_file_write_iter+0x136/0x680
[   90.836366][ T5336]  generic_file_write_iter+0x14a/0x680
[   90.838870][ T5336]  ? __pfx_generic_file_write_iter+0x10/0x10
[   90.841597][ T5336]  ? irqentry_exit+0x218/0x730
[   90.843844][ T5336]  ? lockdep_hardirqs_on+0x7a/0x110
[   90.846423][ T5336]  ? irqentry_exit+0x218/0x730
[   90.848898][ T5336]  ? trace_irq_disable+0x3b/0x140
[   90.852044][ T5336]  ? vfs_write+0x227/0xb90
[   90.854649][ T5336]  vfs_write+0x61d/0xb90
[   90.856695][ T5336]  ? __pfx_vfs_write+0x10/0x10
[   90.858940][ T5336]  ? __fget_files+0x2a/0x420
[   90.861042][ T5336]  ksys_write+0x150/0x270
[   90.863133][ T5336]  ? __pfx_ksys_write+0x10/0x10
[   90.865375][ T5336]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   90.869077][ T5336]  do_syscall_64+0x15f/0xf80
[   90.872251][ T5336]  ? trace_irq_disable+0x3b/0x140
[   90.875039][ T5336]  ? clear_bhb_loop+0x40/0x90
[   90.877116][ T5336]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   90.879682][ T5336] RIP: 0033:0x7fa97bf9c819
[   90.881655][ T5336] 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
[   90.889591][ T5336] RSP: 002b:00007fa97cec9fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   90.893969][ T5336] RAX: ffffffffffffffda RBX: 00007fa97c215fa0 RCX: 00007fa97bf9c819
[   90.898513][ T5336] RDX: 000000000000fecc RSI: 00002000000008c0 RDI: 0000000000000004
[   90.901390][ T5336] RBP: 00007fa97c032c91 R08: 0000000000000000 R09: 0000000000000000
[   90.904811][ T5336] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[   90.908215][ T5336] R13: 00007fa97c216038 R14: 00007fa97c215fa0 R15: 00007ffed20aa898
[   90.912002][ T5336]  </TASK>
[   90.914372][ T5336] Kernel Offset: disabled
[   90.916873][ T5336] Rebooting in 86400 seconds..