If CONFIG_KALLSYMS is defined and if it should happen that is_exported()
is given a NULL 'mod' and
lookup_symbol(name, __start___ksymtab, __stop___ksymtab) returns 0, then
we'll end up dereferencing a NULL pointer.
Patch below makes sure that'll never happen.
Signed-off-by: Jesper Juhl <[email protected]>
---
kernel/module.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
--- linux-2.6.17-rc3-git12-orig/kernel/module.c 2006-05-07 03:25:38.000000000 +0200
+++ linux-2.6.17-rc3-git12/kernel/module.c 2006-05-07 19:16:38.000000000 +0200
@@ -1326,7 +1326,7 @@ int is_exported(const char *name, const
if (!mod && lookup_symbol(name, __start___ksymtab, __stop___ksymtab))
return 1;
else
- if (lookup_symbol(name, mod->syms, mod->syms + mod->num_syms))
+ if (mod && lookup_symbol(name, mod->syms, mod->syms + mod->num_syms))
return 1;
else
return 0;
-
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