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-rw-r--r--security/keys/trusted.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/security/keys/trusted.c b/security/keys/trusted.c
index 903dace648a1..7c183c767a3a 100644
--- a/security/keys/trusted.c
+++ b/security/keys/trusted.c
@@ -736,11 +736,14 @@ static int getoptions(char *c, struct trusted_key_payload *pay,
int res;
unsigned long handle;
unsigned long lock;
+ unsigned long token_mask = 0;
while ((p = strsep(&c, " \t"))) {
if (*p == '\0' || *p == ' ' || *p == '\t')
continue;
token = match_token(p, key_tokens, args);
+ if (test_and_set_bit(token, &token_mask))
+ return -EINVAL;
switch (token) {
case Opt_pcrinfo: