------------[ cut here ]------------
WARNING: CPU: 0 PID: 14521 at fs/ext4/inode.c:3629 ext4_set_page_dirty+0x2ea/0x3d0 fs/ext4/inode.c:3629
Modules linked in:
CPU: 0 PID: 14521 Comm: syz-executor.4 Not tainted 5.10.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ext4_set_page_dirty+0x2ea/0x3d0 fs/ext4/inode.c:3629
Code: ff e8 5a d3 6e ff 49 8d 5e ff e9 e3 fd ff ff e8 4c d3 6e ff 48 c7 c6 c0 4c 5e 89 48 89 ef e8 fd b4 9e ff 0f 0b e8 36 d3 6e ff <0f> 0b e9 75 ff ff ff e8 2a d3 6e ff 4c 8b 65 08 31 ff 4c 89 e3 83
RSP: 0018:ffffc900012afba0 EFLAGS: 00010246
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9001178c000
RDX: 0000000000040000 RSI: ffffffff8201313a RDI: 0000000000000001
RBP: ffffea0000eb6500 R08: 0000000000000000 R09: ffffea0000eb6507
R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0000eb6508
R13: 0000000000000000 R14: ffffea0000eef148 R15: ffffea0000eef148
FS:  00007f27b9c59700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fedfb697000 CR3: 0000000029292000 CR4: 0000000000350ee0
Call Trace:
 set_page_dirty+0x296/0x6c0 mm/page-writeback.c:2580
 set_page_dirty_lock+0x92/0xd0 mm/page-writeback.c:2605
 unpin_user_pages_dirty_lock mm/gup.c:312 [inline]
 unpin_user_pages_dirty_lock+0x1c3/0x2b0 mm/gup.c:273
 xdp_umem_unpin_pages net/xdp/xdp_umem.c:28 [inline]
 xdp_umem_pin_pages net/xdp/xdp_umem.c:124 [inline]
 xdp_umem_reg net/xdp/xdp_umem.c:220 [inline]
 xdp_umem_create+0xb5d/0x10e0 net/xdp/xdp_umem.c:253
 xsk_setsockopt+0x73e/0x9e0 net/xdp/xsk.c:858
 __sys_setsockopt+0x2db/0x610 net/socket.c:2132
 __do_sys_setsockopt net/socket.c:2143 [inline]
 __se_sys_setsockopt net/socket.c:2140 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2140
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e159
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f27b9c58c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045e159
RDX: 0000000000000004 RSI: 000000000000011b RDI: 0000000000000006
RBP: 000000000119bfd0 R08: 0000000000000020 R09: 0000000000000000
R10: 00000000200000c0 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007fff58a9114f R14: 00007f27b9c599c0 R15: 000000000119bf8c