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* [PATCH] LSM: add NULL check for kcalloc()
@ 2021-07-12 23:44 Austin Kim
  2021-07-14 19:05 ` James Morris
  0 siblings, 1 reply; 4+ messages in thread
From: Austin Kim @ 2021-07-12 23:44 UTC (permalink / raw)
  To: jmorris, serge, keescook
  Cc: linux-security-module, linux-kernel, austin.kim, kernel-team,
	austindh.kim

From: Austin Kim <austin.kim@lge.com>

kcalloc() may return NULL when memory allocation fails.
So it is necessary to add NULL check after the call to kcalloc() is made.

Signed-off-by: Austin Kim <austin.kim@lge.com>
---
 security/security.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/security/security.c b/security/security.c
index 09533cbb7221..f885c9e9bc35 100644
--- a/security/security.c
+++ b/security/security.c
@@ -321,6 +321,8 @@ static void __init ordered_lsm_init(void)
 
 	ordered_lsms = kcalloc(LSM_COUNT + 1, sizeof(*ordered_lsms),
 				GFP_KERNEL);
+	if (ordered_lsms)
+		return;
 
 	if (chosen_lsm_order) {
 		if (chosen_major_lsm) {
-- 
2.20.1


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-08-06 18:33 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-12 23:44 [PATCH] LSM: add NULL check for kcalloc() Austin Kim
2021-07-14 19:05 ` James Morris
2021-07-14 21:44   ` Austin Kim
2021-08-06 18:33     ` Ken Goldman

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