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authorAlan Cox <alan@linux.intel.com>2012-07-30 14:43:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-30 17:25:22 -0700
commit086ff4b3a7fb9cdf41e6a5d0ccd99b86d84633a1 (patch)
treebf7ab2f90ea3314eaa04e2614b6f848ba2c856ca
parente04f228335bde305d2833e40382ed37fc36f9efe (diff)
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>
-rw-r--r--drivers/misc/lkdtm.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 28adefe70f96..08aad69c8da4 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -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++)