------------[ cut here ]------------ WARNING: CPU: 0 PID: 6272 at fs/buffer.c:1186 mark_buffer_dirty+0x284/0x490 fs/buffer.c:1186 Modules linked in: CPU: 0 UID: 0 PID: 6272 Comm: syz-executor.0 Not tainted 6.15.0-rc5-syzkaller-00277-g345030986df8 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mark_buffer_dirty+0x284/0x490 fs/buffer.c:1186 lr : mark_buffer_dirty+0x284/0x490 fs/buffer.c:1186 sp : ffff80009fbd67d0 x29: ffff80009fbd67d0 x28: dfff800000000000 x27: ffff0000d1f63200 x26: ffff0001d22b3200 x25: 1fffe00019c99c2c x24: ffff0000c07959f8 x23: ffff0000ce4ce018 x22: ffff0000c07950e8 x21: ffff0000ce4ce160 x20: 0000000000000010 x19: ffff0000c07959f8 x18: 00000000ffffffff x17: ffff8000911b8000 x16: ffff8000804e7aa0 x15: 0000000000000001 x14: 1fffe000180f2b3f x13: 0000000000000000 x12: 0000000000000000 x11: ffff6000180f2b40 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cc8f3d00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff0001d22b3400 x4 : ffff0000d1f63400 x3 : ffff800080de2a04 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: mark_buffer_dirty+0x284/0x490 fs/buffer.c:1186 (P) bfs_move_block fs/bfs/file.c:44 [inline] bfs_move_blocks fs/bfs/file.c:57 [inline] bfs_get_block+0x748/0xa1c 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:4103 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4220 generic_file_write_iter+0x104/0x470 mm/filemap.c:4246 __kernel_write_iter+0x2b8/0x6c8 fs/read_write.c:617 __kernel_write+0xe0/0x130 fs/read_write.c:637 __dump_emit fs/coredump.c:808 [inline] dump_emit+0x220/0x31c fs/coredump.c:845 writenote+0x178/0x28c fs/binfmt_elf.c:1470 write_note_info fs/binfmt_elf.c:1963 [inline] elf_core_dump+0x24e4/0x2d38 fs/binfmt_elf.c:2115 do_coredump+0x178c/0x1fb0 fs/coredump.c:759 get_signal+0xe38/0x12f8 kernel/signal.c:3019 do_signal+0x1ac/0x35fc arch/arm64/kernel/signal.c:1658 do_notify_resume+0x78/0x1f8 arch/arm64/kernel/entry-common.c:148 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_da+0xc0/0x160 arch/arm64/kernel/entry-common.c:605 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 1070 hardirqs last enabled at (1069): [] bh_lru_install fs/buffer.c:1358 [inline] hardirqs last enabled at (1069): [] find_get_block_common+0x95c/0xd80 fs/buffer.c:1415 hardirqs last disabled at (1070): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (498): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (496): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---