vmoff()'s return type is too narrow
ClosedPublic
Actions

Authored by alc on Mar 15 2017, 9:35 PM.

Tags

None

Referenced Files

	Unknown Object (File)
	Sat, Oct 4, 2:41 AM

	Unknown Object (File)
	Fri, Oct 3, 10:25 AM

	Unknown Object (File)
	Thu, Oct 2, 4:50 PM

	Unknown Object (File)
	Thu, Oct 2, 4:42 PM

	Unknown Object (File)
	Sep 21 2025, 5:08 PM

	Unknown Object (File)
	Aug 18 2025, 3:13 PM

	Unknown Object (File)
	Aug 12 2025, 2:59 PM

	Unknown Object (File)
	Aug 11 2025, 2:02 AM

View All 72 Files

Subscribers

None

Details

Reviewers

glebius
kib

Commits

rS319540: The data type returned by vmoff() is too narrow in its range. This could

Summary

While reviewing all of the use cases of OFF_TO_IDX(), I observed that vmoff()'s return type is vm_offset_t rather than vm_ooffset_t. Consequently, sendfile() could have problems transmitting files larger than 4 GB on 32-bit architectures.

Diff Detail

Repository

rS FreeBSD src repository - subversion

Lint

Lint Not Applicable

Unit

Tests Not Applicable

Event Timeline

alc created this revision.Mar 15 2017, 9:35 PM

kib accepted this revision.Mar 15 2017, 9:40 PM

This revision is now accepted and ready to land.Mar 15 2017, 9:40 PM

Closed by commit rS319540: The data type returned by vmoff() is too narrow in its range. This could (authored by alc). · Explain WhyJun 3 2017, 4:19 PM

This revision was automatically updated to reflect the committed changes.

Revision Contents
Changeset List

Path

Size

head/

sys/

kern/

kern_sendfile.c

4 lines

Diff 29176

View Options

head/sys/kern/kern_sendfile.c

vmoff()'s return type is too narrowClosedPublicActions