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authorIngo Molnar <mingo@kernel.org>2017-11-10 10:21:08 +0300
committerIngo Molnar <mingo@kernel.org>2017-11-10 10:21:08 +0300
commitb5cd3b51e247473e290be5cd09e77171e466cd89 (patch)
treeac8c87e1b38f61a4c879c574dc9373db41f3df01 /lib/digsig.c
parent376f3bcebdc999cc737d9052109cc33b573b3a8b (diff)
parent1c9dbd4615fd751e5e0b99807a3c7c8612e28e20 (diff)
downloadlinux-b5cd3b51e247473e290be5cd09e77171e466cd89.tar.xz
Merge branch 'linus' into x86/platform, to refresh the branch
Signed-off-by: Ingo Molnar <mingo@kernel.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+ /* key was revoked before we acquired its semaphore */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;