program:
mkdir(&(0x7f0000000300)='./file0\x00', 0x0) (async)
mount(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000380)='ramfs\x00', 0x0, 0x0) (async)
mount$overlay(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000180), 0x0, &(0x7f00000001c0)={[{@lowerdir={'lowerdir', 0x3d, './file0'}, 0x3a}], [], 0x2f}) (async, rerun: 64)
listxattr(&(0x7f0000000000)='./file0\x00', 0x0, 0x29) (async, rerun: 64)
syz_mount_image$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$binfmt_script(r0, &(0x7f00000008c0), 0xfecc) (async)
r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000000c0)='memory.events\x00', 0x275a, 0x0)
write$binfmt_script(r1, &(0x7f0000000100), 0xfecc)
[ 85.215986][ T4669] Bluetooth: hci0: command tx timeout
[ 85.346346][ T5322] loop0: detected capacity change from 0 to 64
[ 85.358004][ T5323] overlayfs: maximum fs stacking depth exceeded
[ 85.384597][ T5323] overlayfs: maximum fs stacking depth exceeded
[ 85.422554][ T5323] overlayfs: maximum fs stacking depth exceeded
[ 85.476355][ T5322] ------------[ cut here ]------------
[ 85.479653][ T5322] !buffer_uptodate(bh)
[ 85.479667][ T5322] WARNING: fs/buffer.c:1080 at mark_buffer_dirty+0x299/0x410, CPU#0: syz.0.0/5322
[ 85.486581][ T5322] Modules linked in:
[ 85.489192][ T5322] CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 85.496369][ T5322] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 85.501616][ T5322] RIP: 0010:mark_buffer_dirty+0x299/0x410
[ 85.504358][ T5322] Code: 4c 89 f7 e8 d9 91 da ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 b4 62 fb ff e8 4f 4a 6e ff eb 8c e8 48 4a 6e ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 3a 4a 6e ff 90 0f 0b 90 e9 cf fd ff ff
[ 85.514743][ T5322] RSP: 0018:ffffc9000e30f608 EFLAGS: 00010293
[ 85.517846][ T5322] RAX: ffffffff82579468 RBX: ffff888046eca0e8 RCX: ffff888011a92500
[ 85.521837][ T5322] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
[ 85.525633][ T5322] RBP: ffff888012114001 R08: ffff888046eca0ef R09: 1ffff11008dd941d
[ 85.529246][ T5322] R10: dffffc0000000000 R11: ffffed1008dd941e R12: ffff8880558a3400
[ 85.532790][ T5322] R13: ffff888046f05bc8 R14: ffff888046eca0e8 R15: 000000000000000a
[ 85.536344][ T5322] FS: 00007fdd07ac86c0(0000) GS:ffff88808c81a000(0000) knlGS:0000000000000000
[ 85.540088][ T5322] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 85.543161][ T5322] CR2: 0000200000003000 CR3: 0000000041146000 CR4: 0000000000352ef0
[ 85.546738][ T5322] Call Trace:
[ 85.548118][ T5322]
[ 85.549484][ T5322] bfs_get_block+0x5da/0xae0
[ 85.551295][ T5322] __block_write_begin_int+0x6c6/0x1910
[ 85.553772][ T5322] ? __pfx_bfs_get_block+0x10/0x10
[ 85.556072][ T5322] ? __pfx___block_write_begin_int+0x10/0x10
[ 85.558569][ T5322] ? __pfx_bfs_get_block+0x10/0x10
[ 85.560808][ T5322] block_write_begin+0x8d/0x120
[ 85.563002][ T5322] ? bfs_write_begin+0x1e/0xd0
[ 85.565319][ T5322] bfs_write_begin+0x35/0xd0
[ 85.567501][ T5322] generic_perform_write+0x2e2/0x8f0
[ 85.569667][ T5322] ? __pfx_generic_perform_write+0x10/0x10
[ 85.572829][ T5322] ? file_update_time_flags+0x219/0x4a0
[ 85.576290][ T5322] ? __generic_file_write_iter+0xf9/0x230
[ 85.579280][ T5322] ? generic_file_write_iter+0x136/0x680
[ 85.581730][ T5322] generic_file_write_iter+0x14a/0x680
[ 85.584091][ T5322] ? add_lock_to_list+0xc7/0x100
[ 85.586429][ T5322] ? __pfx_generic_file_write_iter+0x10/0x10
[ 85.589165][ T5322] ? lockdep_unlock+0x5d/0xd0
[ 85.591300][ T5322] ? __lock_acquire+0x146e/0x2cf0
[ 85.593930][ T5322] ? __pfx_aa_file_perm+0x10/0x10
[ 85.596719][ T5322] ? vfs_write+0x227/0xb90
[ 85.598581][ T5322] ? vfs_write+0x227/0xb90
[ 85.600613][ T5322] vfs_write+0x61d/0xb90
[ 85.602519][ T5322] ? __pfx_vfs_write+0x10/0x10
[ 85.604737][ T5322] ? __fget_files+0x2a/0x420
[ 85.607065][ T5322] ksys_write+0x150/0x270
[ 85.609231][ T5322] ? __pfx_ksys_write+0x10/0x10
[ 85.611759][ T5322] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 85.614708][ T5322] do_syscall_64+0x15f/0xf80
[ 85.616824][ T5322] ? trace_irq_disable+0x3b/0x140
[ 85.619041][ T5322] ? clear_bhb_loop+0x40/0x90
[ 85.620981][ T5322] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 85.623545][ T5322] RIP: 0033:0x7fdd06b9c819
[ 85.625609][ T5322] 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
[ 85.633659][ T5322] RSP: 002b:00007fdd07ac7fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 85.637791][ T5322] RAX: ffffffffffffffda RBX: 00007fdd06e15fa0 RCX: 00007fdd06b9c819
[ 85.641490][ T5322] RDX: 000000000000fecc RSI: 00002000000008c0 RDI: 0000000000000004
[ 85.645302][ T5322] RBP: 00007fdd06c32c91 R08: 0000000000000000 R09: 0000000000000000
[ 85.648739][ T5322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 85.652217][ T5322] R13: 00007fdd06e16038 R14: 00007fdd06e15fa0 R15: 00007ffe2c4eaf48
[ 85.655953][ T5322]
[ 85.657667][ T5322] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 85.661034][ T5322] CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 85.665010][ T5322] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 85.669214][ T5322] Call Trace:
[ 85.670702][ T5322]
[ 85.672024][ T5322] vpanic+0x56c/0xa60
[ 85.673622][ T5322] ? __pfx__printk+0x10/0x10
[ 85.675692][ T5322] ? __pfx_vpanic+0x10/0x10
[ 85.677716][ T5322] ? is_bpf_text_address+0x292/0x2b0
[ 85.680166][ T5322] ? is_bpf_text_address+0x26/0x2b0
[ 85.682576][ T5322] panic+0xc5/0xd0
[ 85.684242][ T5322] ? __pfx_panic+0x10/0x10
[ 85.686337][ T5322] __warn+0x315/0x4c0
[ 85.688476][ T5322] ? mark_buffer_dirty+0x299/0x410
[ 85.690855][ T5322] ? mark_buffer_dirty+0x299/0x410
[ 85.693260][ T5322] __report_bug+0x29a/0x540
[ 85.695571][ T5322] ? filemap_get_entry+0xcd/0x3f0
[ 85.699459][ T5322] ? filemap_get_entry+0xcd/0x3f0
[ 85.701667][ T5322] ? mark_buffer_dirty+0x299/0x410
[ 85.704001][ T5322] ? __pfx___report_bug+0x10/0x10
[ 85.706281][ T5322] ? __pfx_folio_mark_accessed+0x10/0x10
[ 85.708682][ T5322] ? mark_buffer_dirty+0x299/0x410
[ 85.710999][ T5322] report_bug+0x16a/0x220
[ 85.713112][ T5322] ? mark_buffer_dirty+0x299/0x410
[ 85.715659][ T5322] ? mark_buffer_dirty+0x29b/0x410
[ 85.718139][ T5322] handle_bug+0x9c/0x200
[ 85.720011][ T5322] exc_invalid_op+0x1a/0x50
[ 85.722049][ T5322] asm_exc_invalid_op+0x1a/0x20
[ 85.724241][ T5322] RIP: 0010:mark_buffer_dirty+0x299/0x410
[ 85.726954][ T5322] Code: 4c 89 f7 e8 d9 91 da ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 b4 62 fb ff e8 4f 4a 6e ff eb 8c e8 48 4a 6e ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 3a 4a 6e ff 90 0f 0b 90 e9 cf fd ff ff
[ 85.736074][ T5322] RSP: 0018:ffffc9000e30f608 EFLAGS: 00010293
[ 85.738795][ T5322] RAX: ffffffff82579468 RBX: ffff888046eca0e8 RCX: ffff888011a92500
[ 85.742785][ T5322] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
[ 85.746432][ T5322] RBP: ffff888012114001 R08: ffff888046eca0ef R09: 1ffff11008dd941d
[ 85.749949][ T5322] R10: dffffc0000000000 R11: ffffed1008dd941e R12: ffff8880558a3400
[ 85.753778][ T5322] R13: ffff888046f05bc8 R14: ffff888046eca0e8 R15: 000000000000000a
[ 85.757540][ T5322] ? mark_buffer_dirty+0x298/0x410
[ 85.759852][ T5322] ? mark_buffer_dirty+0x298/0x410
[ 85.762130][ T5322] bfs_get_block+0x5da/0xae0
[ 85.764432][ T5322] __block_write_begin_int+0x6c6/0x1910
[ 85.766923][ T5322] ? __pfx_bfs_get_block+0x10/0x10
[ 85.769379][ T5322] ? __pfx___block_write_begin_int+0x10/0x10
[ 85.772208][ T5322] ? __pfx_bfs_get_block+0x10/0x10
[ 85.774580][ T5322] block_write_begin+0x8d/0x120
[ 85.777071][ T5322] ? bfs_write_begin+0x1e/0xd0
[ 85.779910][ T5322] bfs_write_begin+0x35/0xd0
[ 85.782340][ T5322] generic_perform_write+0x2e2/0x8f0
[ 85.785021][ T5322] ? __pfx_generic_perform_write+0x10/0x10
[ 85.788137][ T5322] ? file_update_time_flags+0x219/0x4a0
[ 85.790832][ T5322] ? __generic_file_write_iter+0xf9/0x230
[ 85.793492][ T5322] ? generic_file_write_iter+0x136/0x680
[ 85.795918][ T5322] generic_file_write_iter+0x14a/0x680
[ 85.798333][ T5322] ? add_lock_to_list+0xc7/0x100
[ 85.800484][ T5322] ? __pfx_generic_file_write_iter+0x10/0x10
[ 85.802910][ T5322] ? lockdep_unlock+0x5d/0xd0
[ 85.804853][ T5322] ? __lock_acquire+0x146e/0x2cf0
[ 85.806991][ T5322] ? __pfx_aa_file_perm+0x10/0x10
[ 85.809281][ T5322] ? vfs_write+0x227/0xb90
[ 85.811314][ T5322] ? vfs_write+0x227/0xb90
[ 85.813540][ T5322] vfs_write+0x61d/0xb90
[ 85.815380][ T5322] ? __pfx_vfs_write+0x10/0x10
[ 85.817604][ T5322] ? __fget_files+0x2a/0x420
[ 85.819790][ T5322] ksys_write+0x150/0x270
[ 85.821808][ T5322] ? __pfx_ksys_write+0x10/0x10
[ 85.824157][ T5322] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 85.826834][ T5322] do_syscall_64+0x15f/0xf80
[ 85.828801][ T5322] ? trace_irq_disable+0x3b/0x140
[ 85.831045][ T5322] ? clear_bhb_loop+0x40/0x90
[ 85.833542][ T5322] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 85.836896][ T5322] RIP: 0033:0x7fdd06b9c819
[ 85.839554][ T5322] 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
[ 85.848232][ T5322] RSP: 002b:00007fdd07ac7fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 85.852421][ T5322] RAX: ffffffffffffffda RBX: 00007fdd06e15fa0 RCX: 00007fdd06b9c819
[ 85.856397][ T5322] RDX: 000000000000fecc RSI: 00002000000008c0 RDI: 0000000000000004
[ 85.860134][ T5322] RBP: 00007fdd06c32c91 R08: 0000000000000000 R09: 0000000000000000
[ 85.863581][ T5322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 85.867178][ T5322] R13: 00007fdd06e16038 R14: 00007fdd06e15fa0 R15: 00007ffe2c4eaf48
[ 85.871172][ T5322]
[ 85.873029][ T5322] Kernel Offset: disabled
[ 85.875216][ T5322] Rebooting in 86400 seconds..