program:
setxattr$system_posix_acl(&(0x7f0000002a00)='.\x00', &(0x7f0000002a40)='system.posix_acl_default\x00', &(0x7f0000000140)=ANY=[@ANYBLOB="0200000001004f82c8fe89cdc8cd38ee925162f895ae0000000000000400000000000000dddb235c732b5ac1d8c0d3ca2c149016b6d0dbea033e9f92eb2573a6f3733ff83e25f5e76c022504449ee7d9b628872ac4e2f766467d1eec6645a96781ae1e475937d906d0e71b9637f09e2a7ab6552e8384ddb1fc5a2f2af78f23346b63860c16fe2aa8450cd75c1d49452622c9a47f57d189e14dfb307fff308e4ef534d63c91041ac5db71895a07dc42a27c66234e7f4cfa"], 0x24, 0x0)
madvise(&(0x7f0000bdc000/0x4000)=nil, 0x86ac726dff2f4713, 0xa)
r0 = syz_clone(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
process_vm_writev(r0, &(0x7f0000001c80)=[{&(0x7f0000001bc0)=""/156, 0x9c}], 0x1, &(0x7f0000001d80)=[{&(0x7f0000001cc0)=""/116, 0x20001c34}], 0x1, 0x0)
r1 = bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000300)={&(0x7f0000000380)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0xc, 0xc, 0x2, [@struct]}}, 0x0, 0x26}, 0x20)
r2 = userfaultfd(0x800)
ioctl$UFFDIO_WRITEPROTECT(r2, 0xc018aa06, &(0x7f0000000040)={{&(0x7f000090b000/0x3000)=nil, 0x3000}, 0x7})
bpf$BPF_GET_BTF_INFO(0xf, &(0x7f0000000340)={r1, 0x20, &(0x7f0000000100)={0x0, 0x0, <r3=>0x0, 0x0}}, 0x10)
bpf$BPF_BTF_GET_FD_BY_ID(0x13, &(0x7f00000000c0)=r3, 0x4f)
bpf$BPF_LINK_CREATE_XDP(0x1c, &(0x7f0000000000)={0xffffffffffffffff, 0x0, 0x25, 0x2, @val=@tracing={r3, 0x7}}, 0x20)
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x3, 0x200000005c832, 0xffffffffffffffff, 0x0)

[   79.976035][ T5321] ------------[ cut here ]------------
[   79.979300][ T5321] !buffer_uptodate(bh)
[   79.979313][ T5321] WARNING: fs/buffer.c:1093 at mark_buffer_dirty+0x299/0x410, CPU#0: syz.0.0/5321
[   79.987824][ T5321] Modules linked in:
[   79.990585][ T5321] CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
[   79.994546][ T5321] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   79.999487][ T5321] RIP: 0010:mark_buffer_dirty+0x299/0x410
[   80.003265][ T5321] Code: 4c 89 f7 e8 f9 0d d9 ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 d4 5e fb ff e8 1f e9 69 ff eb 8c e8 18 e9 69 ff 90 <0f> 0b 90 e9 a5 fd ff ff e8 0a e9 69 ff 90 0f 0b 90 e9 cf fd ff ff
[   80.010986][ T5321] RSP: 0018:ffffc9000f4b65c8 EFLAGS: 00010293
[   80.013422][ T5321] RAX: ffffffff825c98b8 RBX: ffff8880325461c0 RCX: ffff88801f52ca80
[   80.017685][ T5321] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
[   80.021989][ T5321] RBP: 0000000000000201 R08: ffff8880325461c7 R09: 1ffff110064a8c38
[   80.028313][ T5321] R10: dffffc0000000000 R11: ffffed10064a8c39 R12: 0000000000000012
[   80.031763][ T5321] R13: ffff8880325461c0 R14: ffff8880131c6540 R15: dffffc0000000000
[   80.036131][ T5321] FS:  00007f090a2ea6c0(0000) GS:ffff88808c54a000(0000) knlGS:0000000000000000
[   80.040522][ T5321] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   80.043125][ T5321] CR2: 0000559ae40c2f38 CR3: 0000000012e84000 CR4: 0000000000352ef0
[   80.046344][ T5321] Call Trace:
[   80.048074][ T5321]  <TASK>
[   80.050147][ T5321]  bfs_get_block+0x5c6/0xb50