Date: Mon, 10 Jun 2019 22:06:40 +0000 (UTC) From: Doug Moore <dougm@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r348883 - head/sys/vm Message-ID: <201906102206.x5AM6e2W099774@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: dougm Date: Mon Jun 10 22:06:40 2019 New Revision: 348883 URL: https://svnweb.freebsd.org/changeset/base/348883 Log: r348879 introduced a wrong-way comparison that broke mmap. This change rights that comparison. Reported by: pho Approved by: markj (mentor) MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D20595 Modified: head/sys/vm/vm_mmap.c Modified: head/sys/vm/vm_mmap.c ============================================================================== --- head/sys/vm/vm_mmap.c Mon Jun 10 21:50:07 2019 (r348882) +++ head/sys/vm/vm_mmap.c Mon Jun 10 22:06:40 2019 (r348883) @@ -259,7 +259,7 @@ kern_mmap(struct thread *td, uintptr_t addr0, size_t l size = len + pageoff; /* low end... */ size = round_page(size); /* hi end */ /* Check for rounding up to zero. */ - if (len < size) + if (len > size) return (ENOMEM); /* Ensure alignment is at least a page and fits in a pointer. */
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201906102206.x5AM6e2W099774>