From: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Date: Wed, 21 Nov 2012 20:34:50 +0000 (-0200)
Subject: libkmod-module: Remove key+value vermagic from .modinfo section
X-Git-Tag: v12~5
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d196b8d99f0a46d5e96678daabe74fda94875886;p=thirdparty%2Fkmod.git

libkmod-module: Remove key+value vermagic from .modinfo section

When told to force load a module, we were removing only the value of
vermagic instead of the complete entry.

Philippe De Swert (philippe.deswert@jollamobile.com) sent a patch that
was additionally mangling also the last two chars of the key
("vermagic="). Instead of creating an invalid entry in .modinfo section
like this, this patch removes the complete entry, key + value, by
zeroing the entire string.

Much thanks to Philippe who found the issue and pointed to the fix.
---

diff --git a/libkmod/libkmod-elf.c b/libkmod/libkmod-elf.c
index 38e83c10..dc5a83e5 100644
--- a/libkmod/libkmod-elf.c
+++ b/libkmod/libkmod-elf.c
@@ -611,7 +611,6 @@ int kmod_elf_strip_vermagic(struct kmod_elf *elf)
 			i += strlen(s);
 			continue;
 		}
-		s += len;
 		off = (const uint8_t *)s - elf->memory;
 
 		if (elf->changed == NULL) {