Author: emaste
Date: Thu Mar 5 20:53:43 2020
New Revision: 358685
URL: https://svnweb.freebsd.org/changeset/base/358685
Log:
libelf: rationalize error handling in ELF note conversion
Previously _libelf_cvt_NOTE_tom (to host) returned false if a note's
namesz + descsz exceeded the buffer size, while _libelf_cvt_NOTE_tof
(to file) silently truncated. Return false in the latter case too.
Sponsored by: The FreeBSD Foundation
Modified:
head/contrib/elftoolchain/libelf/libelf_convert.m4
Modified: head/contrib/elftoolchain/libelf/libelf_convert.m4
==============================================================================
--- head/contrib/elftoolchain/libelf/libelf_convert.m4 Thu Mar 5 20:04:41
2020 (r358684)
+++ head/contrib/elftoolchain/libelf/libelf_convert.m4 Thu Mar 5 20:53:43
2020 (r358685)
@@ -1022,7 +1022,7 @@ _libelf_cvt_NOTE_tof(unsigned char *dst, size_t dsz, u
count -= sizeof(Elf_Note);
if (count < sz)
- sz = count;
+ return (0);
(void) memcpy(dst, src, sz);
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