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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-23 14:29:43 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-23 14:29:43 +0200
commit7706abf5a0eb4c082897fd2a17a0ac0898e39666 (patch)
tree982d22365f1aeedc43a796ef816cf1b1fa8480a7 /lib/digsig.c
parentca3c5858834f75543a4e2e115b1578c01558b2ce (diff)
parentbb176f67090ca54869fc1262c913aa69d2ede070 (diff)
Merge 4.14-rc6 into staging-next
We want the IIO and staging driver fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/digsig.c')
-rw-r--r--lib/digsig.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/digsig.c b/lib/digsig.c
index 03d7c63837ae..6ba6fcd92dd1 100644
--- a/lib/digsig.c
+++ b/lib/digsig.c
@@ -87,6 +87,12 @@ static int digsig_verify_rsa(struct key *key,
down_read(&key->sem);
ukp = user_key_payload_locked(key);
+ if (!ukp) {
+ /* key was revoked before we acquired its semaphore */
+ err = -EKEYREVOKED;
+ goto err1;
+ }
+
if (ukp->datalen < sizeof(*pkh))
goto err1;