Eric Sesterhenn 6f0dee7d9c pkcs7: Prevent NULL pointer dereference, since sinfo is not always set.
commit 68a1fdbbf8bd3378325e45c19e167a165f9ffc3a upstream.

The ASN.1 parser does not necessarily set the sinfo field,
this patch prevents a NULL pointer dereference on broken
input.

Fixes: 99db44350672 ("PKCS#7: Appropriately restrict authenticated attributes and content type")
Signed-off-by: Eric Sesterhenn <eric.sesterhenn@x41-dsec.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-27 10:23:17 +02:00
..
2017-10-21 17:09:05 +02:00
2017-03-26 12:13:17 +02:00