Paths

Table of Contentst

linuxkpi: Fix assertion in `lkpi_vmf_insert_pfn_prot_locked()`
Needs ReviewPublic
Actions

Authored by dumbbell on Jul 12 2026, 4:33 PM.

Tags

Referenced Files

	F170368655: D58194.id181842.diff
	Fri, Sep 4, 11:49 AM

	Unknown Object (File)
	Thu, Sep 3, 2:45 AM

	Unknown Object (File)
	Tue, Sep 1, 1:12 AM

	Unknown Object (File)
	Fri, Aug 28, 12:49 AM

	Unknown Object (File)
	Mon, Aug 17, 1:44 AM

	Unknown Object (File)
	Thu, Aug 13, 2:19 AM

	Unknown Object (File)
	Thu, Aug 13, 12:25 AM

	Unknown Object (File)
	Mon, Aug 10, 9:34 AM

View All 37 Files

Subscribers

emaste

imp

Details

Reviewers

None

Group Reviewers

linuxkpi

Summary

Before this change, the assertion would not catch a page index matching the end address, even though the end address of a mapping is outside of that mapping.

While here, add another assertion to catch page indexes outside of the expected range earlier.

Also, pagefaulting an address outside of the mapping range should return VM_FAULT_SIGBUS instead of panicing.

Diff Detail

Lint

Lint Skipped

Unit

Tests Skipped

Event Timeline

dumbbell created this revision.Jul 12 2026, 4:33 PM

Herald added subscribers: emaste, imp. · View Herald TranscriptJul 12 2026, 4:33 PM

dumbbell requested review of this revision.Jul 12 2026, 4:33 PM

dumbbell added a parent revision: D57703: linuxkpi: Define `ULL()`.Jul 12 2026, 4:36 PM

dumbbell added a child revision: D58195: linuxkpi: Update `struct vm_area_struct` when an existing mapping is extended.

emaste added a project: linuxkpi.Mon, Aug 17, 4:59 PM

Revision Contents
Changeset List

Path

Size

sys/

compat/

linuxkpi/

common/

src/

linux_compat.c

2 lines

linux_page.c

5 lines

Diff 181842

View Options

sys/compat/linuxkpi/common/src/linux_compat.c