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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 /kernel/kallsyms.c
parent329c6e4257d6a89990d72617d91437e2ce59e426 (diff)
[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 'kernel/kallsyms.c')
-rw-r--r--kernel/kallsyms.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 39277dd6bf90..ab16a5a4cfe9 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -275,8 +275,8 @@ static void upcase_if_global(struct kallsym_iter *iter)
static int get_ksymbol_mod(struct kallsym_iter *iter)
{
iter->owner = module_get_kallsym(iter->pos - kallsyms_num_syms,
- &iter->value,
- &iter->type, iter->name);
+ &iter->value, &iter->type,
+ iter->name, sizeof(iter->name));
if (iter->owner == NULL)
return 0;

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