drivers/misc/lkdtm.c: fix missing allocation failure check

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=44691

Reported-by: <rucsoftsec@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox 2012-07-30 14:43:24 -07:00 committed by Linus Torvalds
parent e04f228335
commit 086ff4b3a7

View file

@ -477,6 +477,8 @@ static ssize_t lkdtm_debugfs_read(struct file *f, char __user *user_buf,
int i, n, out;
buf = (char *)__get_free_page(GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
n = snprintf(buf, PAGE_SIZE, "Available crash types:\n");
for (i = 0; i < ARRAY_SIZE(cp_type); i++)