------------[ cut here ]------------ kernel BUG at include/linux/highmem.h:269! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5340 Comm: syz.0.0 Not tainted 6.12.0-syzkaller-10553-gb86545e02e8c #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:zero_user_segments+0x28b/0x290 include/linux/highmem.h:269 Code: 07 02 e9 47 fe ff ff e8 c3 ea a3 fe 89 ea be 00 10 00 00 48 c7 c7 d0 f2 cf 8e e8 e0 7c 07 02 e9 d3 fe ff ff e8 a6 ea a3 fe 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 RSP: 0018:ffffc900019d6d00 EFLAGS: 00010293 RAX: ffffffff82f1f9da RBX: ffffea000135c340 RCX: ffff888000c54880 RDX: 0000000000000000 RSI: 0000000000001782 RDI: 0000000000001000 RBP: 0000000000001000 R08: ffffffff82f1f815 R09: 1ffffd400026b868 R10: dffffc0000000000 R11: fffff9400026b869 R12: 0000000000001782 R13: 0000000000000000 R14: 1ffffd400026b868 R15: 0000000000001782 FS: 00007fe2825d66c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd74688f04 CR3: 0000000043e38000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: folio_zero_range include/linux/highmem.h:641 [inline] ntfs_extend_initialized_size+0x50b/0x950 fs/ntfs3/file.c:225 ntfs_extend+0x578/0xad0 fs/ntfs3/file.c:413 ntfs_file_write_iter+0x403/0x7a0 fs/ntfs3/file.c:1254 __kernel_write_iter+0x42a/0x940 fs/read_write.c:612 __kernel_write+0x120/0x180 fs/read_write.c:632 __dump_emit+0x237/0x360 fs/coredump.c:807 writenote+0x221/0x3b0 fs/binfmt_elf.c:1471 write_note_info fs/binfmt_elf.c:1964 [inline] elf_core_dump+0x393a/0x4790 fs/binfmt_elf.c:2116 do_coredump+0x229b/0x3100 fs/coredump.c:758 get_signal+0x140b/0x1750 kernel/signal.c:3001 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]---