Messages in this thread Patch in this message | | | Date | Sat, 13 Mar 2010 14:14:22 +0300 | From | Dan Carpenter <> | Subject | [patch] tomoyo: fix potential use after free |
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The original code returns a freed pointer. This function is expected to return NULL on errors.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c index ff51f10..ef89947 100644 --- a/security/tomoyo/common.c +++ b/security/tomoyo/common.c @@ -886,6 +886,7 @@ static struct tomoyo_profile *tomoyo_find_or_assign_new_profile(const unsigned ptr = kmalloc(sizeof(*ptr), GFP_KERNEL); if (!tomoyo_memory_ok(ptr)) { kfree(ptr); + ptr = NULL; goto ok; } for (i = 0; i < TOMOYO_MAX_CONTROL_INDEX; i++)
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