------------[ cut here ]------------ WARNING: CPU: 1 PID: 4532 at fs/buffer.c:1081 mark_buffer_dirty+0x328/0x5cc fs/buffer.c:1081 Modules linked in: CPU: 1 PID: 4532 Comm: syz.0.17 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 : ffff800021316b60 x29: ffff800021316b60 x28: ffff0000d0a2e018 x27: 1fffe0001a145c2c x26: ffff0000eb184200 x25: ffff0000ec5a4008 x24: ffff0000e0a142b8 x23: ffff0000d0a2e160 x22: ffff0000e1b07000 x21: dfff800000000000 x20: 0000000000000010 x19: ffff0000e0a142b8 x18: ffff800011a5bd40 x17: ffff800018184000 x16: ffff8000082d3a08 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000ff0100 x11: ff00800008a7ea2c x10: 0000000000000000 x9 : ffff800008a7ea2c x8 : ffff0000d4fcb780 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff0000eb184400 x4 : ffff0000cf09c400 x3 : ffff800008a7e734 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+0x230/0x4e4 mm/filemap.c:3862 __generic_file_write_iter+0x130/0x250 mm/filemap.c:3960 generic_file_write_iter+0xb4/0x2b0 mm/filemap.c:3989 __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+0x178/0x28c fs/binfmt_elf.c:1530 write_note_info fs/binfmt_elf.c:1983 [inline] elf_core_dump+0x23f4/0x2cc4 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_ia+0xe8/0x1e8 arch/arm64/kernel/entry-common.c:534 el0t_64_sync_handler+0xd8/0xf0 arch/arm64/kernel/entry-common.c:661 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 612 hardirqs last enabled at (611): [] bh_lru_install fs/buffer.c:1258 [inline] hardirqs last enabled at (611): [] __find_get_block+0xbe0/0xdfc fs/buffer.c:1309 hardirqs last disabled at (612): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (524): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (524): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (513): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---