diff options
| author | Ingo Molnar <mingo@kernel.org> | 2017-11-02 12:57:24 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-11-02 12:57:24 +0300 |
| commit | 3357b0d3c7323d73806571192e9f633bb6ba3d54 (patch) | |
| tree | a92fb225bfdda901783ad662a1fea0baddfb81e1 /lib/digsig.c | |
| parent | 82c62fa0c49aa305104013cee4468772799bb391 (diff) | |
| parent | e27c310af5c05cf876d9cad006928076c27f54d4 (diff) | |
| download | linux-3357b0d3c7323d73806571192e9f633bb6ba3d54.tar.xz | |
Merge branch 'x86/mpx/prep' into x86/asm
Pick up some of the MPX commits that modify the syscall entry code,
to have a common base and to reduce conflicts.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib/digsig.c')
| -rw-r--r-- | lib/digsig.c | 6 |
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sem); ukp = user_key_payload_locked(key); + if (!ukp) { + /* key was revoked before we acquired its semaphore */ + err = -EKEYREVOKED; + goto err1; + } + if (ukp-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; |