Date: Tue, 07 Mar 2017 19:32:19 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 217610] ELF loader should have a special case for program headers with p_filesz == 0 Message-ID: <bug-217610-8-naCNdLth5g@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-217610-8@https.bugs.freebsd.org/bugzilla/> References: <bug-217610-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217610 --- Comment #4 from Konstantin Belousov <kib@FreeBSD.org> --- Created attachment 180607 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=180607&action=edit Handle filsz == 0. Attached is the proposed patch. Note that it is somewhat more involved that just passing the filsz == 0 in the initial ENOEXEC check, because I do not want even think what happens when offset is not multiple of the page size. I just force any file-backed COW mappings to be avoided if filesz == 0. Also the patch contains some style cleanup, which I split for actual commit. -- You are receiving this mail because: You are the assignee for the bug.
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