------------[ cut here ]------------ WARNING: CPU: 0 PID: 4611 at fs/buffer.c:1081 mark_buffer_dirty+0x328/0x5cc fs/buffer.c:1081 Modules linked in: CPU: 0 PID: 4611 Comm: syz.2.56 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : mark_buffer_dirty+0x328/0x5cc fs/buffer.c:1081 lr : mark_buffer_dirty+0x328/0x5cc fs/buffer.c:1081 sp : ffff800021606b40 x29: ffff800021606b40 x28: ffff0000dce5a018 x27: 1fffe0001b9cb42c x26: ffff0000f8b5d600 x25: ffff0000f61f0530 x24: ffff0000fb402488 x23: ffff0000dce5a160 x22: ffff0000e0f653a0 x21: dfff800000000000 x20: 0000000000000010 x19: ffff0000fb402488 x18: ffff800011abbcc0 x17: ffff8000181f9000 x16: ffff8000082d25ac x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000ff0100 x11: ff00800008a7d230 x10: 0000000000000000 x9 : ffff800008a7d230 x8 : ffff0000cf24d340 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff0000f8b5d800 x4 : ffff0000e2193400 x3 : ffff800008a7cf38 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: mark_buffer_dirty+0x328/0x5cc fs/buffer.c:1081 bfs_move_block fs/bfs/file.c:43 [inline] bfs_move_blocks fs/bfs/file.c:56 [inline] bfs_get_block+0x478/0x970 fs/bfs/file.c:125 __block_write_begin_int+0x34c/0x13b8 fs/buffer.c:1991 __block_write_begin fs/buffer.c:2041 [inline] block_write_begin+0x98/0x11c fs/buffer.c:2102 bfs_write_begin+0x48/0xec fs/bfs/file.c:177 generic_perform_write+0x230/0x4b0 mm/filemap.c:3846 __generic_file_write_iter+0x168/0x37c mm/filemap.c:3974 generic_file_write_iter+0xb4/0x2b0 mm/filemap.c:4006 __kernel_write_iter+0x200/0x558 fs/read_write.c:517 __kernel_write+0xe0/0x130 fs/read_write.c:537 __dump_emit fs/coredump.c:873 [inline] dump_emit+0x220/0x31c fs/coredump.c:910 writenote+0xe0/0x28c fs/binfmt_elf.c:1528 write_note_info fs/binfmt_elf.c:1998 [inline] elf_core_dump+0x24f8/0x2cc4 fs/binfmt_elf.c:2341 do_coredump+0x10c4/0x1c4c fs/coredump.c:824 get_signal+0xdec/0x1310 kernel/signal.c:2857 do_signal arch/arm64/kernel/signal.c:1081 [inline] do_notify_resume+0x29c/0x2b28 arch/arm64/kernel/signal.c:1134 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_da+0xb4/0x154 arch/arm64/kernel/entry-common.c:516 el0t_64_sync_handler+0x90/0xf0 arch/arm64/kernel/entry-common.c:658 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 1576 hardirqs last enabled at (1575): [] bh_lru_install fs/buffer.c:1258 [inline] hardirqs last enabled at (1575): [] __find_get_block+0xbe0/0xdfc fs/buffer.c:1309 hardirqs last disabled at (1576): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (360): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (358): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---