------------[ cut here ]------------
WARNING: CPU: 1 PID: 4404 at fs/buffer.c:1084 mark_buffer_dirty+0x2e8/0x52c fs/buffer.c:1084
Modules linked in:
CPU: 1 PID: 4404 Comm: syz-executor.0 Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : mark_buffer_dirty+0x2e8/0x52c fs/buffer.c:1084
lr : mark_buffer_dirty+0x2e8/0x52c fs/buffer.c:1084
sp : ffff80001f336ba0
x29: ffff80001f336ba0 x28: ffff0000dad46018 x27: dfff800000000000
x26: ffff0000df79a200 x25: ffff0000e1d20530 x24: ffff0000dcae1910
x23: 000000000000000e x22: ffff0000de473570 x21: 000000000000000e
x20: 0000000000000010 x19: ffff0000dcae1910 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082bf3c8 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff8000089d3a14
x8 : ffff0000d78ad1c0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff0000df79a400 x4 : ffff0000c8ea8600 x3 : ffff8000089d3758
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 mark_buffer_dirty+0x2e8/0x52c fs/buffer.c:1084
 bfs_move_block fs/bfs/file.c:43 [inline]
 bfs_move_blocks fs/bfs/file.c:56 [inline]
 bfs_get_block+0x6d8/0xa08 fs/bfs/file.c:125
 __block_write_begin_int+0x3e4/0x1588 fs/buffer.c:2012
 __block_write_begin fs/buffer.c:2062 [inline]
 block_write_begin+0x60/0xdc fs/buffer.c:2122
 bfs_write_begin+0x50/0xf4 fs/bfs/file.c:177
 generic_perform_write+0x204/0x480 mm/filemap.c:3785
 __generic_file_write_iter+0x23c/0x454 mm/filemap.c:3912
 generic_file_write_iter+0xb0/0x1b4 mm/filemap.c:3944
 __kernel_write+0x3e8/0x7ac fs/read_write.c:539
 __dump_emit+0x1dc/0x2fc fs/coredump.c:943
 dump_emit+0x288/0x364 fs/coredump.c:980
 elf_core_dump+0x221c/0x2bac fs/binfmt_elf.c:2264
 do_coredump+0x14e4/0x2240 fs/coredump.c:894
 get_signal+0x4f4/0x1340 kernel/signal.c:2886
 do_signal arch/arm64/kernel/signal.c:893 [inline]
 do_notify_resume+0x29c/0x3128 arch/arm64/kernel/signal.c:946
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_da+0x10c/0x1fc arch/arm64/kernel/entry-common.c:495
 el0t_64_sync_handler+0xd8/0xe4 arch/arm64/kernel/entry-common.c:629
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 1000
hardirqs last  enabled at (999): [<ffff8000089d2eec>] bh_lru_install fs/buffer.c:1261 [inline]
hardirqs last  enabled at (999): [<ffff8000089d2eec>] __find_get_block+0xa80/0xcd8 fs/buffer.c:1312
hardirqs last disabled at (1000): [<ffff8000111a5098>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (556): [<ffff80000819d1e8>] softirq_handle_end kernel/softirq.c:419 [inline]
softirqs last  enabled at (556): [<ffff80000819d1e8>] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604
softirqs last disabled at (443): [<ffff80000819d7ec>] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (443): [<ffff80000819d7ec>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (443): [<ffff80000819d7ec>] invoke_softirq kernel/softirq.c:457 [inline]
softirqs last disabled at (443): [<ffff80000819d7ec>] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659
---[ end trace 6ddb84ff793e7882 ]---