Date: Sat, 2 Mar 2013 17:08:14 +0000 (UTC) From: Dmitry Chagin <dchagin@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r247643 - in user/dchagin/lemul/sys: amd64/linux32 i386/linux Message-ID: <201303021708.r22H8E9S068049@svn.freebsd.org>
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Author: dchagin Date: Sat Mar 2 17:08:14 2013 New Revision: 247643 URL: http://svnweb.freebsd.org/changeset/base/247643 Log: Linux do not allow an mmap() offset which is not modulo the pagesize. Modified: user/dchagin/lemul/sys/amd64/linux32/linux32_machdep.c user/dchagin/lemul/sys/i386/linux/linux_machdep.c Modified: user/dchagin/lemul/sys/amd64/linux32/linux32_machdep.c ============================================================================== --- user/dchagin/lemul/sys/amd64/linux32/linux32_machdep.c Sat Mar 2 17:06:39 2013 (r247642) +++ user/dchagin/lemul/sys/amd64/linux32/linux32_machdep.c Sat Mar 2 17:08:14 2013 (r247643) @@ -522,6 +522,13 @@ linux_mmap_common(struct thread *td, l_u fp = NULL; /* + * Linux do not allow an offset which is not + * modulo the pagesize. + */ + if (pos & PAGE_MASK) + return (EINVAL); + + /* * Linux mmap(2): * You must specify exactly one of MAP_SHARED and MAP_PRIVATE */ Modified: user/dchagin/lemul/sys/i386/linux/linux_machdep.c ============================================================================== --- user/dchagin/lemul/sys/i386/linux/linux_machdep.c Sat Mar 2 17:06:39 2013 (r247642) +++ user/dchagin/lemul/sys/i386/linux/linux_machdep.c Sat Mar 2 17:08:14 2013 (r247643) @@ -426,6 +426,13 @@ linux_mmap_common(struct thread *td, l_u fp = NULL; /* + * Linux do not allow an offset which is not + * modulo the pagesize. + */ + if (pos & PAGE_MASK) + return (EINVAL); + + /* * Linux mmap(2): * You must specify exactly one of MAP_SHARED and MAP_PRIVATE */
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