------------[ cut here ]------------ kernel BUG at include/linux/highmem.h:269! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5336 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:ffffc9000d216ca0 EFLAGS: 00010293 RAX: ffffffff82f1f9da RBX: ffffea00014c5580 RCX: ffff888000d50000 RDX: 0000000000000000 RSI: 0000000000001bd9 RDI: 0000000000001000 RBP: 0000000000001000 R08: ffffffff82f1f815 R09: 1ffffd4000298ab0 R10: dffffc0000000000 R11: fffff94000298ab1 R12: 0000000000001bd9 R13: 0000000000000000 R14: 1ffffd4000298ab0 R15: 0000000000001bd9 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd0f47709a0 CR3: 0000000052f00000 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:1959 [inline] elf_core_dump+0x38a0/0x4790 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] irqentry_exit_to_user_mode+0x7e/0x250 kernel/entry/common.c:231 exc_page_fault+0x590/0x8c0 arch/x86/mm/fault.c:1542 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7fd0f3840437 Code: 88 15 ba 52 e3 00 88 05 b7 52 e3 00 c3 50 48 8d 35 16 35 1b 00 48 8d 3d 1c 35 1b 00 31 c0 e8 a0 f9 ff ff 53 89 fb 48 83 ec 10 <64> 8b 04 25 94 ff ff ff 85 c0 74 2a 89 fe 31 c0 bf 3c 00 00 00 e8 RSP: 002b:00007fd0f47721e0 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 000000000000000b RCX: 00007fd0f3980809 RDX: 00007fd0f4772200 RSI: 00007fd0f4772330 RDI: 000000000000000b RBP: 00007fd0f39f393e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd0f3b45fa0 R15: 00007ffc20cf9178 Modules linked in: ---[ end trace 0000000000000000 ]--- 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:ffffc9000d216ca0 EFLAGS: 00010293 RAX: ffffffff82f1f9da RBX: ffffea00014c5580 RCX: ffff888000d50000 RDX: 0000000000000000 RSI: 0000000000001bd9 RDI: 0000000000001000 RBP: 0000000000001000 R08: ffffffff82f1f815 R09: 1ffffd4000298ab0 R10: dffffc0000000000 R11: fffff94000298ab1 R12: 0000000000001bd9 R13: 0000000000000000 R14: 1ffffd4000298ab0 R15: 0000000000001bd9 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd0f47709a0 CR3: 0000000052f00000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400