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WARNING: CPU: 0 PID: 8334 at fs/buffer.c:1183 mark_buffer_dirty+0x284/0x490 fs/buffer.c:1183
Modules linked in:
CPU: 0 UID: 0 PID: 8334 Comm: syz.2.265 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : mark_buffer_dirty+0x284/0x490 fs/buffer.c:1183
lr : mark_buffer_dirty+0x284/0x490 fs/buffer.c:1183
sp : ffff80009c8761d0
x29: ffff80009c8761d0 x28: ffff0000c6e18160 x27: dfff800000000000
x26: ffff0000e03cb600 x25: ffff0000f69a0528 x24: ffff0000f6bced98
x23: ffff0000c6e18018 x22: ffff0000cab42bc8 x21: 1fffe00018dc302c
x20: 0000000000000010 x19: ffff0000f6bced98 x18: 00000000ffffffff
x17: ffff80009353a000 x16: ffff80008052b424 x15: 0000000000000001
x14: 1fffe0001ed79db3 x13: 0000000000000000 x12: 0000000000000000
x11: ffff60001ed79db4 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000dbd90000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff0000e03cb800 x4 : ffff00010b8bb000 x3 : ffff800080e6dec8
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 mark_buffer_dirty+0x284/0x490 fs/buffer.c:1183 (P)
 bfs_move_block fs/bfs/file.c:44 [inline]
 bfs_move_blocks fs/bfs/file.c:57 [inline]
 bfs_get_block+0x4d8/0x9d4 fs/bfs/file.c:126
 __block_write_begin_int+0x53c/0x15e8 fs/buffer.c:2145
 block_write_begin+0xa0/0x128 fs/buffer.c:2256
 bfs_write_begin+0x48/0xec fs/bfs/file.c:180
 generic_perform_write+0x244/0x7bc mm/filemap.c:4175
 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4292
 generic_file_write_iter+0x10c/0x47c mm/filemap.c:4318
 __kernel_write_iter+0x310/0x738 fs/read_write.c:619
 __kernel_write+0xe0/0x130 fs/read_write.c:639
 __dump_emit fs/coredump.c:1218 [inline]
 dump_emit+0x220/0x31c fs/coredump.c:1256
 writenote+0x178/0x28c fs/binfmt_elf.c:1417
 write_note_info fs/binfmt_elf.c:1912 [inline]
 elf_core_dump+0x2610/0x2f88 fs/binfmt_elf.c:2072
 coredump_write+0x1080/0x1900 fs/coredump.c:1049
 vfs_coredump+0x1844/0x23cc fs/coredump.c:1168
 get_signal+0xe38/0x12f8 kernel/signal.c:3019
 arch_do_signal_or_restart+0x1c0/0x4434 arch/arm64/kernel/signal.c:1619
 exit_to_user_mode_loop+0x7c/0x168 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:103 [inline]
 el0_da+0x174/0x230 arch/arm64/kernel/entry-common.c:563
 el0t_64_sync_handler+0x90/0x12c arch/arm64/kernel/entry-common.c:766
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
irq event stamp: 720
hardirqs last  enabled at (719): [<ffff800080e70728>] bh_lru_install fs/buffer.c:1353 [inline]
hardirqs last  enabled at (719): [<ffff800080e70728>] find_get_block_common+0x970/0xde8 fs/buffer.c:1410
hardirqs last disabled at (720): [<ffff80008b01a1ac>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434
softirqs last  enabled at (342): [<ffff800080201608>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (340): [<ffff8000802015d4>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---