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authorAndreas Gruenbacher <agruen@suse.de>2006-07-14 00:24:04 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-14 21:53:52 -0700
commit098c5eea03de4707019a205140296893252b4130 (patch)
tree7fddd3a319c7607db2dd7082dcf3887c3e16b3c1 /include/linux/module.h
parent329c6e4257d6a89990d72617d91437e2ce59e426 (diff)
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[PATCH] null-terminate over-long /proc/kallsyms symbols
Got a customer bug report (https://bugzilla.novell.com/190296) about kernel symbols longer than 127 characters which end up in a string buffer that is not NULL terminated, leading to garbage in /proc/kallsyms. Using strlcpy prevents this from happening, even though such symbols still won't come out right. A better fix would be to not use a fixed-size buffer, but it's probably not worth the trouble. (Modversion'ed symbols even have a length limit of 60.) [bunk@stusta.de: build fix] Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/module.h')
-rw-r--r--include/linux/module.h10
1 files changed, 4 insertions, 6 deletions
diff --git a/include/linux/module.h b/include/linux/module.h
index d06c74fb8c26..0dfb794c52d3 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -362,10 +362,8 @@ int is_module_address(unsigned long addr);
/* Returns module and fills in value, defined and namebuf, or NULL if
symnum out of range. */
-struct module *module_get_kallsym(unsigned int symnum,
- unsigned long *value,
- char *type,
- char namebuf[128]);
+struct module *module_get_kallsym(unsigned int symnum, unsigned long *value,
+ char *type, char *name, size_t namelen);
/* Look for this name: can be of form module:name. */
unsigned long module_kallsyms_lookup_name(const char *name);
@@ -535,8 +533,8 @@ static inline const char *module_address_lookup(unsigned long addr,
static inline struct module *module_get_kallsym(unsigned int symnum,
unsigned long *value,
- char *type,
- char namebuf[128])
+ char *type, char *name,
+ size_t namelen)
{
return NULL;
}