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From: Ben Hutchings <ben@decadent.org.uk>
Date: Fri, 02 Dec 2016 23:06:18 +0000
Subject: module: Disable matching missing version CRC
Forwarded: not-needed
This partly reverts commit cd3caefb4663e3811d37cc2afad3cce642d60061.
We want to fail closed if a symbol version CRC is missing, as the
alternative may allow subverting module signing.
---
Index: linux/kernel/module.c
===================================================================
--- linux.orig/kernel/module.c
+++ linux/kernel/module.c
@@ -1317,9 +1317,8 @@ static int check_version(const struct lo
goto bad_version;
}
- /* Broken toolchain. Warn once, then let it go.. */
- pr_warn_once("%s: no symbol version for %s\n", info->name, symname);
- return 1;
+ pr_warn("%s: no symbol version for %s\n", info->name, symname);
+ return 0;
bad_version:
pr_warn("%s: disagrees about version of symbol %s\n",
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