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$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000200)='rdma.current\x00', 0x275a, 0x0)
openat$cgroup_ro(0xffffffffffffffff, &(0x7f0000000080)='memory.events\x00', 0x7a05, 0x1700)
r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000100)='memory.events\x00', 0x275a, 0x0)
write$binfmt_script(r1, &(0x7f0000000b00)={'#! ', '', [{0x20, ' \x15'}, {}], 0xa, "78e9"}, 0xa)
mmap$IORING_OFF_SQ_RING(&(0x7f0000001000/0x2000)=nil, 0x2000, 0x0, 0x12, r1, 0x0)
perf_event_open(&(0x7f0000000400)={0x8, 0x80, 0x0, 0x0, 0x0, 0x0, 0x82, 0x200000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000000080), 0x9}, 0x0, 0x0, 0x3}, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0)
write$binfmt_script(r0, &(0x7f00000008c0), 0xfecc)
r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000000c0)='memory.events\x00', 0x275a, 0x0)
write$binfmt_script(r2, &(0x7f0000000100), 0xfecc)
[ 108.750566][ T5304] Bluetooth: hci0: command tx timeout
[ 108.815381][ T5330] loop0: detected capacity change from 0 to 64
[ 108.904753][ T5330] ------------[ cut here ]------------
[ 108.907741][ T5330] !buffer_uptodate(bh)
[ 108.907783][ T5330] WARNING: fs/buffer.c:1080 at mark_buffer_dirty+0x299/0x440, CPU#0: syz.0.0/5330
[ 108.913678][ T5330] Modules linked in:
[ 108.915859][ T5330] CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 108.921049][ T5330] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 108.925652][ T5330] RIP: 0010:mark_buffer_dirty+0x299/0x440
[ 108.928087][ T5330] Code: 4c 89 f7 e8 99 b2 d9 ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 94 5d fb ff e8 5f cf 6d ff eb 8c e8 58 cf 6d ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 4a cf 6d ff 90 0f 0b 90 e9 cf fd ff ff
[ 108.937167][ T5330] RSP: 0018:ffffc9000ef17608 EFLAGS: 00010283
[ 108.940602][ T5330] RAX: ffffffff8257d818 RBX: ffff88801a826488 RCX: 0000000000100000
[ 108.944066][ T5330] RDX: ffffc90020001000 RSI: 00000000000003cd RDI: 00000000000003ce
[ 108.947689][ T5330] RBP: ffff888011d9c001 R08: ffff88801a82648f R09: 1ffff11003504c91
[ 108.951322][ T5330] R10: dffffc0000000000 R11: ffffed1003504c92 R12: ffff888050e42600
[ 108.955890][ T5330] R13: ffff888047ab1bc8 R14: ffff88801a826488 R15: 000000000000000a
[ 108.960031][ T5330] FS: 00007f7c8ea9f6c0(0000) GS:ffff88808ca40000(0000) knlGS:0000000000000000
[ 108.963704][ T5330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 108.966456][ T5330] CR2: 0000200000001000 CR3: 000000003757c000 CR4: 0000000000352ef0
[ 108.970043][ T5330] Call Trace:
[ 108.971346][ T5330]
[ 108.972369][ T5330] bfs_get_block+0x5da/0xae0
[ 108.974403][ T5330] __block_write_begin_int+0x6c6/0x1910
[ 108.976658][ T5330] ? __pfx_bfs_get_block+0x10/0x10
[ 108.979660][ T5330] ? __pfx___block_write_begin_int+0x10/0x10
[ 108.982143][ T5330] ? __pfx_bfs_get_block+0x10/0x10
[ 108.984434][ T5330] block_write_begin+0x8d/0x120
[ 108.986854][ T5330] ? bfs_write_begin+0x1e/0xd0
[ 108.989391][ T5330] bfs_write_begin+0x35/0xd0
[ 108.991887][ T5330] generic_perform_write+0x2e2/0x8f0
[ 108.995827][ T5330] ? __pfx_generic_perform_write+0x10/0x10
[ 108.998980][ T5330] ? file_update_time_flags+0x219/0x4a0
[ 109.001796][ T5330] ? __generic_file_write_iter+0xf9/0x230
[ 109.004699][ T5330] ? generic_file_write_iter+0x136/0x680
[ 109.007373][ T5330] generic_file_write_iter+0x14a/0x680
[ 109.010006][ T5330] ? __pfx_generic_file_write_iter+0x10/0x10
[ 109.012772][ T5330] ? __lock_acquire+0x6b5/0x2cf0
[ 109.015303][ T5330] vfs_write+0x61d/0xb90
[ 109.017690][ T5330] ? __pfx_vfs_write+0x10/0x10
[ 109.019879][ T5330] ? __fget_files+0x2a/0x420
[ 109.022003][ T5330] ksys_write+0x150/0x270
[ 109.024102][ T5330] ? __pfx_ksys_write+0x10/0x10
[ 109.026538][ T5330] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 109.030165][ T5330] do_syscall_64+0x15f/0xf80
[ 109.033335][ T5330] ? trace_irq_disable+0x3b/0x150
[ 109.036152][ T5330] ? clear_bhb_loop+0x40/0x90
[ 109.038681][ T5330] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 109.041896][ T5330] RIP: 0033:0x7f7c8db9c819
[ 109.044076][ T5330] 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
[ 109.055195][ T5330] RSP: 002b:00007f7c8ea9efe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 109.060201][ T5330] RAX: ffffffffffffffda RBX: 00007f7c8de15fa0 RCX: 00007f7c8db9c819
[ 109.064772][ T5330] RDX: 000000000000fecc RSI: 0000200000000100 RDI: 0000000000000007
[ 109.068979][ T5330] RBP: 00007f7c8dc32c91 R08: 0000000000000000 R09: 0000000000000000
[ 109.072943][ T5330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 109.076315][ T5330] R13: 00007f7c8de16038 R14: 00007f7c8de15fa0 R15: 00007ffcae5aa128
[ 109.080363][ T5330]
[ 109.081990][ T5330] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 109.085420][ T5330] CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 109.089495][ T5330] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 109.095164][ T5330] Call Trace:
[ 109.097195][ T5330]
[ 109.098607][ T5330] vpanic+0x56c/0xa60
[ 109.100475][ T5330] ? __pfx__printk+0x10/0x10
[ 109.102831][ T5330] ? __pfx_vpanic+0x10/0x10
[ 109.105071][ T5330] ? is_bpf_text_address+0x292/0x2b0
[ 109.107427][ T5330] ? is_bpf_text_address+0x26/0x2b0
[ 109.109939][ T5330] panic+0xc5/0xd0
[ 109.112097][ T5330] ? __pfx_panic+0x10/0x10
[ 109.114773][ T5330] __warn+0x315/0x4f0
[ 109.116590][ T5330] ? mark_buffer_dirty+0x299/0x440
[ 109.118916][ T5330] ? mark_buffer_dirty+0x299/0x440
[ 109.121271][ T5330] __report_bug+0x29a/0x540
[ 109.123273][ T5330] ? filemap_get_entry+0xca/0x320
[ 109.125598][ T5330] ? mark_buffer_dirty+0x299/0x440
[ 109.127997][ T5330] ? __pfx___report_bug+0x10/0x10
[ 109.130314][ T5330] ? __pfx_folio_mark_accessed+0x10/0x10
[ 109.132883][ T5330] ? mark_buffer_dirty+0x299/0x440
[ 109.135226][ T5330] report_bug+0x16a/0x220
[ 109.137225][ T5330] ? mark_buffer_dirty+0x299/0x440
[ 109.139568][ T5330] ? mark_buffer_dirty+0x29b/0x440
[ 109.141975][ T5330] handle_bug+0x9c/0x200
[ 109.143854][ T5330] exc_invalid_op+0x1a/0x50
[ 109.145912][ T5330] asm_exc_invalid_op+0x1a/0x20
[ 109.148127][ T5330] RIP: 0010:mark_buffer_dirty+0x299/0x440
[ 109.150546][ T5330] Code: 4c 89 f7 e8 99 b2 d9 ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 94 5d fb ff e8 5f cf 6d ff eb 8c e8 58 cf 6d ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 4a cf 6d ff 90 0f 0b 90 e9 cf fd ff ff
[ 109.159900][ T5330] RSP: 0018:ffffc9000ef17608 EFLAGS: 00010283
[ 109.163169][ T5330] RAX: ffffffff8257d818 RBX: ffff88801a826488 RCX: 0000000000100000
[ 109.166719][ T5330] RDX: ffffc90020001000 RSI: 00000000000003cd RDI: 00000000000003ce
[ 109.170294][ T5330] RBP: ffff888011d9c001 R08: ffff88801a82648f R09: 1ffff11003504c91
[ 109.174016][ T5330] R10: dffffc0000000000 R11: ffffed1003504c92 R12: ffff888050e42600
[ 109.178044][ T5330] R13: ffff888047ab1bc8 R14: ffff88801a826488 R15: 000000000000000a
[ 109.181939][ T5330] ? mark_buffer_dirty+0x298/0x440
[ 109.184385][ T5330] ? mark_buffer_dirty+0x298/0x440
[ 109.186757][ T5330] bfs_get_block+0x5da/0xae0
[ 109.188968][ T5330] __block_write_begin_int+0x6c6/0x1910
[ 109.191786][ T5330] ? __pfx_bfs_get_block+0x10/0x10
[ 109.194120][ T5330] ? __pfx___block_write_begin_int+0x10/0x10
[ 109.197040][ T5330] ? __pfx_bfs_get_block+0x10/0x10
[ 109.199893][ T5330] block_write_begin+0x8d/0x120
[ 109.202118][ T5330] ? bfs_write_begin+0x1e/0xd0
[ 109.204166][ T5330] bfs_write_begin+0x35/0xd0
[ 109.206113][ T5330] generic_perform_write+0x2e2/0x8f0
[ 109.208367][ T5330] ? __pfx_generic_perform_write+0x10/0x10
[ 109.211348][ T5330] ? file_update_time_flags+0x219/0x4a0
[ 109.214293][ T5330] ? __generic_file_write_iter+0xf9/0x230
[ 109.216913][ T5330] ? generic_file_write_iter+0x136/0x680
[ 109.219425][ T5330] generic_file_write_iter+0x14a/0x680
[ 109.221895][ T5330] ? __pfx_generic_file_write_iter+0x10/0x10
[ 109.224844][ T5330] ? __lock_acquire+0x6b5/0x2cf0
[ 109.227637][ T5330] vfs_write+0x61d/0xb90
[ 109.230111][ T5330] ? __pfx_vfs_write+0x10/0x10
[ 109.232540][ T5330] ? __fget_files+0x2a/0x420
[ 109.234590][ T5330] ksys_write+0x150/0x270
[ 109.236428][ T5330] ? __pfx_ksys_write+0x10/0x10
[ 109.238590][ T5330] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 109.241347][ T5330] do_syscall_64+0x15f/0xf80
[ 109.243522][ T5330] ? trace_irq_disable+0x3b/0x150
[ 109.246039][ T5330] ? clear_bhb_loop+0x40/0x90
[ 109.248419][ T5330] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 109.251607][ T5330] RIP: 0033:0x7f7c8db9c819
[ 109.254044][ T5330] 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
[ 109.262381][ T5330] RSP: 002b:00007f7c8ea9efe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 109.266963][ T5330] RAX: ffffffffffffffda RBX: 00007f7c8de15fa0 RCX: 00007f7c8db9c819
[ 109.271018][ T5330] RDX: 000000000000fecc RSI: 0000200000000100 RDI: 0000000000000007
[ 109.274506][ T5330] RBP: 00007f7c8dc32c91 R08: 0000000000000000 R09: 0000000000000000
[ 109.277844][ T5330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 109.281280][ T5330] R13: 00007f7c8de16038 R14: 00007f7c8de15fa0 R15: 00007ffcae5aa128
[ 109.285154][ T5330]
[ 109.287204][ T5330] Kernel Offset: disabled
[ 109.289247][ T5330] Rebooting in 86400 seconds..