program:
r0 = syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000240)='./bus\x00', 0x8008, &(0x7f0000000100)=ANY=[@ANYRES64=0x0], 0x1, 0xab, &(0x7f0000010140)="$eJzs1zGKwkAYBeB/s7CbdptFsLBO4x08ilhqI1aK4A3Ei3gVj5DewiKtiCOYiIidRQT5vmLgzWPgtbM7brubIiKtIlLRme7T3Wy+GA8n9Rl8pCwifiMij4jeX50Pg7r7avqyWo7K6vv58c+69b0AAMDrsug/5nNqLk7NL/Aa/m993vI+AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgHe7BAAA//+dfyiL")
r1 = creat(&(0x7f0000000080)='./file1\x00', 0x182)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x101042, 0x15)
r3 = open(&(0x7f0000000100)='./bus\x00', 0x143142, 0xa2)
write$FUSE_INIT(r1, &(0x7f0000000a40)={0x50, 0x0, 0x0, {0x7, 0x2d, 0x800, 0x24504603, 0x70c, 0x8, 0x7, 0xe1e, 0x0, 0x0, 0x20, 0x7b}}, 0x50)
mmap(&(0x7f0000001000/0x2000)=nil, 0x2000, 0x0, 0x32, r0, 0x33ed0000)
write$FUSE_INIT(r3, &(0x7f0000000140)={0x50}, 0xffd3)
pwrite64(r2, &(0x7f0000000140)='2', 0x10001, 0x0)
[ 84.444506][ T5300] Bluetooth: hci0: command tx timeout
[ 84.518230][ T5321] loop0: detected capacity change from 0 to 64
[ 84.589735][ T5321] ------------[ cut here ]------------
[ 84.592201][ T5321] !buffer_uptodate(bh)
[ 84.592237][ T5321] WARNING: fs/buffer.c:1180 at mark_buffer_dirty+0x299/0x440, CPU#0: syz.0.0/5321
[ 84.598047][ T5321] Modules linked in:
[ 84.599969][ T5321] CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 84.604140][ T5321] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 84.608416][ T5321] RIP: 0010:mark_buffer_dirty+0x299/0x440
[ 84.610843][ T5321] Code: 4c 89 f7 e8 99 05 da ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 54 61 fb ff e8 1f 52 6e ff eb 8c e8 18 52 6e ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 0a 52 6e ff 90 0f 0b 90 e9 cf fd ff ff
[ 84.619377][ T5321] RSP: 0018:ffffc9000e117608 EFLAGS: 00010283
[ 84.622155][ T5321] RAX: ffffffff82574908 RBX: ffff88801c8c1740 RCX: 0000000000100000
[ 84.626270][ T5321] RDX: ffffc9000ec4a000 RSI: 00000000000002cc RDI: 00000000000002cd
[ 84.629968][ T5321] RBP: ffff88801f2cc001 R08: ffff88801c8c1747 R09: 1ffff110039182e8
[ 84.633523][ T5321] R10: dffffc0000000000 R11: ffffed10039182e9 R12: ffff88801305e600
[ 84.636870][ T5321] R13: ffff888047b76488 R14: ffff88801c8c1740 R15: 000000000000000a
[ 84.640572][ T5321] FS: 00007f02c43126c0(0000) GS:ffff88808ca5b000(0000) knlGS:0000000000000000
[ 84.644469][ T5321] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 84.647199][ T5321] CR2: 0000200000001000 CR3: 0000000011c95000 CR4: 0000000000352ef0
[ 84.650569][ T5321] Call Trace:
[ 84.652027][ T5321]
[ 84.653475][ T5321] bfs_get_block+0x5da/0xae0
[ 84.655453][ T5321] __block_write_begin_int+0x6c6/0x1910
[ 84.658037][ T5321] ? __pfx_bfs_get_block+0x10/0x10
[ 84.660194][ T5321] ? __pfx___block_write_begin_int+0x10/0x10
[ 84.662866][ T5321] ? ktime_get_coarse_real_ts64_mg+0x59/0x1e0
[ 84.665453][ T5321] ? __pfx_bfs_get_block+0x10/0x10
[ 84.667639][ T5321] block_write_begin+0x8d/0x120
[ 84.669938][ T5321] ? bfs_write_begin+0x1e/0xd0
[ 84.672108][ T5321] bfs_write_begin+0x35/0xd0
[ 84.674345][ T5321] generic_perform_write+0x2e2/0x8f0
[ 84.676624][ T5321] ? __pfx_generic_perform_write+0x10/0x10
[ 84.679082][ T5321] ? file_update_time_flags+0x219/0x4a0
[ 84.681537][ T5321] ? __generic_file_write_iter+0xf9/0x230
[ 84.684035][ T5321] ? generic_file_write_iter+0x136/0x680
[ 84.686630][ T5321] generic_file_write_iter+0x14a/0x680
[ 84.688939][ T5321] ? __pfx_generic_file_write_iter+0x10/0x10
[ 84.691615][ T5321] ? __lock_acquire+0x6b5/0x2cf0
[ 84.693909][ T5321] vfs_write+0x61d/0xb90
[ 84.695815][ T5321] ? __pfx_vfs_write+0x10/0x10
[ 84.697882][ T5321] ? __fget_files+0x2a/0x420
[ 84.699791][ T5321] __x64_sys_pwrite64+0x199/0x230
[ 84.701882][ T5321] ? __pfx___x64_sys_pwrite64+0x10/0x10
[ 84.704346][ T5321] do_syscall_64+0x14d/0xf80
[ 84.706509][ T5321] ? trace_irq_disable+0x3b/0x150
[ 84.708744][ T5321] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 84.711327][ T5321] ? clear_bhb_loop+0x40/0x90
[ 84.713449][ T5321] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 84.715871][ T5321] RIP: 0033:0x7f02c339c629
[ 84.717718][ T5321] 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
[ 84.726032][ T5321] RSP: 002b:00007f02c4312028 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
[ 84.729554][ T5321] RAX: ffffffffffffffda RBX: 00007f02c3615fa0 RCX: 00007f02c339c629
[ 84.733233][ T5321] RDX: 0000000000010001 RSI: 0000200000000140 RDI: 0000000000000005
[ 84.736637][ T5321] RBP: 00007f02c3432b39 R08: 0000000000000000 R09: 0000000000000000
[ 84.739908][ T5321] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 84.743533][ T5321] R13: 00007f02c3616038 R14: 00007f02c3615fa0 R15: 00007ffdb508dd58
[ 84.746880][ T5321]
[ 84.748085][ T5321] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 84.751159][ T5321] CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 84.754941][ T5321] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 84.759189][ T5321] Call Trace:
[ 84.760810][ T5321]
[ 84.762146][ T5321] vpanic+0x56c/0xa60
[ 84.764017][ T5321] ? __pfx__printk+0x10/0x10
[ 84.766140][ T5321] ? __pfx_vpanic+0x10/0x10
[ 84.768169][ T5321] ? is_bpf_text_address+0x292/0x2b0
[ 84.770567][ T5321] ? is_bpf_text_address+0x26/0x2b0
[ 84.772858][ T5321] panic+0xc5/0xd0
[ 84.774555][ T5321] ? __pfx_panic+0x10/0x10
[ 84.776563][ T5321] __warn+0x315/0x4f0
[ 84.778330][ T5321] ? mark_buffer_dirty+0x299/0x440
[ 84.780481][ T5321] ? mark_buffer_dirty+0x299/0x440
[ 84.782511][ T5321] __report_bug+0x29a/0x540
[ 84.784393][ T5321] ? filemap_get_entry+0xca/0x320
[ 84.786482][ T5321] ? mark_buffer_dirty+0x299/0x440
[ 84.788527][ T5321] ? __pfx___report_bug+0x10/0x10
[ 84.790567][ T5321] ? __pfx_folio_mark_accessed+0x10/0x10
[ 84.792838][ T5321] ? mark_buffer_dirty+0x299/0x440
[ 84.795005][ T5321] report_bug+0x16a/0x220
[ 84.796931][ T5321] ? mark_buffer_dirty+0x299/0x440
[ 84.799243][ T5321] ? mark_buffer_dirty+0x29b/0x440
[ 84.801504][ T5321] handle_bug+0x98/0x200
[ 84.803358][ T5321] exc_invalid_op+0x1a/0x50
[ 84.805387][ T5321] asm_exc_invalid_op+0x1a/0x20
[ 84.807622][ T5321] RIP: 0010:mark_buffer_dirty+0x299/0x440
[ 84.810192][ T5321] Code: 4c 89 f7 e8 99 05 da ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 54 61 fb ff e8 1f 52 6e ff eb 8c e8 18 52 6e ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 0a 52 6e ff 90 0f 0b 90 e9 cf fd ff ff
[ 84.818487][ T5321] RSP: 0018:ffffc9000e117608 EFLAGS: 00010283
[ 84.821300][ T5321] RAX: ffffffff82574908 RBX: ffff88801c8c1740 RCX: 0000000000100000
[ 84.824714][ T5321] RDX: ffffc9000ec4a000 RSI: 00000000000002cc RDI: 00000000000002cd
[ 84.828166][ T5321] RBP: ffff88801f2cc001 R08: ffff88801c8c1747 R09: 1ffff110039182e8
[ 84.831649][ T5321] R10: dffffc0000000000 R11: ffffed10039182e9 R12: ffff88801305e600
[ 84.835055][ T5321] R13: ffff888047b76488 R14: ffff88801c8c1740 R15: 000000000000000a
[ 84.838313][ T5321] ? mark_buffer_dirty+0x298/0x440
[ 84.840631][ T5321] ? mark_buffer_dirty+0x298/0x440
[ 84.842915][ T5321] bfs_get_block+0x5da/0xae0
[ 84.845013][ T5321] __block_write_begin_int+0x6c6/0x1910
[ 84.847472][ T5321] ? __pfx_bfs_get_block+0x10/0x10
[ 84.849760][ T5321] ? __pfx___block_write_begin_int+0x10/0x10
[ 84.852494][ T5321] ? ktime_get_coarse_real_ts64_mg+0x59/0x1e0
[ 84.855102][ T5321] ? __pfx_bfs_get_block+0x10/0x10
[ 84.857465][ T5321] block_write_begin+0x8d/0x120
[ 84.859682][ T5321] ? bfs_write_begin+0x1e/0xd0
[ 84.861611][ T5321] bfs_write_begin+0x35/0xd0
[ 84.863621][ T5321] generic_perform_write+0x2e2/0x8f0
[ 84.865805][ T5321] ? __pfx_generic_perform_write+0x10/0x10
[ 84.868071][ T5321] ? file_update_time_flags+0x219/0x4a0
[ 84.870328][ T5321] ? __generic_file_write_iter+0xf9/0x230
[ 84.872567][ T5321] ? generic_file_write_iter+0x136/0x680
[ 84.874785][ T5321] generic_file_write_iter+0x14a/0x680
[ 84.877160][ T5321] ? __pfx_generic_file_write_iter+0x10/0x10
[ 84.879726][ T5321] ? __lock_acquire+0x6b5/0x2cf0
[ 84.882068][ T5321] vfs_write+0x61d/0xb90
[ 84.883975][ T5321] ? __pfx_vfs_write+0x10/0x10
[ 84.886148][ T5321] ? __fget_files+0x2a/0x420
[ 84.888164][ T5321] __x64_sys_pwrite64+0x199/0x230
[ 84.890363][ T5321] ? __pfx___x64_sys_pwrite64+0x10/0x10
[ 84.892797][ T5321] do_syscall_64+0x14d/0xf80
[ 84.894848][ T5321] ? trace_irq_disable+0x3b/0x150
[ 84.897142][ T5321] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 84.899864][ T5321] ? clear_bhb_loop+0x40/0x90
[ 84.901969][ T5321] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 84.904564][ T5321] RIP: 0033:0x7f02c339c629
[ 84.906577][ T5321] 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
[ 84.914884][ T5321] RSP: 002b:00007f02c4312028 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
[ 84.918521][ T5321] RAX: ffffffffffffffda RBX: 00007f02c3615fa0 RCX: 00007f02c339c629
[ 84.921960][ T5321] RDX: 0000000000010001 RSI: 0000200000000140 RDI: 0000000000000005
[ 84.925463][ T5321] RBP: 00007f02c3432b39 R08: 0000000000000000 R09: 0000000000000000
[ 84.928819][ T5321] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 84.932298][ T5321] R13: 00007f02c3616038 R14: 00007f02c3615fa0 R15: 00007ffdb508dd58
[ 84.935675][ T5321]
[ 84.938095][ T5321] Kernel Offset: disabled
[ 84.940037][ T5321] Rebooting in 86400 seconds..