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kernel BUG at fs/ext4/inode.c:2827!
Internal error: Oops - BUG: 00000000f2000800 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 6108 Comm: syz.1.267 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : ext4_do_writepages+0x3bbc/0x3bc0 fs/ext4/inode.c:2826
lr : ext4_do_writepages+0x3bbc/0x3bc0 fs/ext4/inode.c:2826
sp : ffff80009a1b70e0
x29: ffff80009a1b74a0 x28: 0000000000000001 x27: dfff800000000000
x26: ffff700013436e54 x25: 1ffff00013436eec x24: 1fffe0001b5d0262
x23: ffff700013436ea0 x22: ffff0000dae81310 x21: ffff0000d2d10000
x20: 0000006210000000 x19: ffff0000d2a38000 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000008 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000003 x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000008
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800081017928
x2 : 0000004000000000 x1 : ffff0000c665ba80 x0 : 0000000000000000
Call trace:
 ext4_do_writepages+0x3bbc/0x3bc0 fs/ext4/inode.c:2826 (P)
 ext4_writepages+0x198/0x2dc fs/ext4/inode.c:3043
 do_writepages+0x284/0x47c mm/page-writeback.c:2571
 filemap_writeback+0x230/0x2bc mm/filemap.c:387
 filemap_fdatawrite_range mm/filemap.c:412 [inline]
 file_write_and_wait_range+0xb0/0x138 mm/filemap.c:786
 mmb_fsync_noflush+0x80/0x1bc fs/buffer.c:652
 ext4_fsync_nojournal fs/ext4/fsync.c:92 [inline]
 ext4_sync_file+0x37c/0xf20 fs/ext4/fsync.c:160
 vfs_fsync_range+0x120/0x140 fs/sync.c:186
 vfs_fsync fs/sync.c:200 [inline]
 do_fsync+0x4c/0x94 fs/sync.c:211
 __do_sys_fdatasync fs/sync.c:221 [inline]
 __se_sys_fdatasync fs/sync.c:219 [inline]
 __arm64_sys_fdatasync+0x40/0x54 fs/sync.c:219
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736
 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594
Code: aa1303e0 97c24004 d4210000 97d8ea5c (d4210000) 
---[ end trace 0000000000000000 ]---