------------[ cut here ]------------ WARNING: CPU: 1 PID: 6773 at fs/buffer.c:1189 mark_buffer_dirty+0x284/0x490 fs/buffer.c:1189 Modules linked in: CPU: 1 UID: 0 PID: 6773 Comm: syz.2.16 Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT 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+0x284/0x490 fs/buffer.c:1189 lr : mark_buffer_dirty+0x284/0x490 fs/buffer.c:1189 sp : ffff8000a3b76710 x29: ffff8000a3b76710 x28: ffff0000fa588160 x27: dfff800000000000 x26: ffff0000e3243600 x25: ffff0000f9c0dec8 x24: ffff0000dfd2dbc8 x23: ffff0000fa588018 x22: ffff0000dfd32e80 x21: 1fffe0001f4b102c x20: 0000000000000010 x19: ffff0000dfd2dbc8 x18: 00000000ffffffff x17: ffff800093376000 x16: ffff80008051f01c x15: 0000000000000001 x14: 1fffe0001bfa5b79 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001bfa5b7a x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cac10000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff0000e3243800 x4 : ffff0000e37f9400 x3 : ffff800080e3349c x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: mark_buffer_dirty+0x284/0x490 fs/buffer.c:1189 (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:2151 block_write_begin+0xa0/0x128 fs/buffer.c:2262 bfs_write_begin+0x48/0xec fs/bfs/file.c:179 generic_perform_write+0x23c/0x79c mm/filemap.c:4112 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4229 generic_file_write_iter+0x104/0x470 mm/filemap.c:4255 __kernel_write_iter+0x2b8/0x6c8 fs/read_write.c:619 __kernel_write+0xe0/0x130 fs/read_write.c:639 __dump_emit fs/coredump.c:1034 [inline] dump_emit+0x220/0x31c fs/coredump.c:1072 elf_core_dump+0x2474/0x2f40 fs/binfmt_elf.c:2054 do_coredump+0x1fc0/0x2b54 fs/coredump.c:950 get_signal+0xe38/0x12f8 kernel/signal.c:3019 do_signal+0x1c0/0x4434 arch/arm64/kernel/signal.c:1618 do_notify_resume+0xb0/0x1f4 arch/arm64/kernel/entry-common.c:152 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:173 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:182 [inline] el0_da+0xc4/0x164 arch/arm64/kernel/entry-common.c:698 el0t_64_sync_handler+0x90/0x12c arch/arm64/kernel/entry-common.c:901 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 680 hardirqs last enabled at (679): [] bh_lru_install fs/buffer.c:1359 [inline] hardirqs last enabled at (679): [] find_get_block_common+0x970/0xde8 fs/buffer.c:1416 hardirqs last disabled at (680): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (400): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (398): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---