Description: crypto: algif_aead - fix reference counting of null skcipher
References:
 http://www.openwall.com/lists/oss-security/2018/08/28/1
 https://lkml.org/lkml/2017/11/27/866
Notes:
Bugs:
upstream: released (4.15-rc4) [b32a7dc8aef1882fbf983eb354837488cc9d54dc]
4.9-upstream-stable: N/A "Introduced in 4.14-rc1 with 72548b093ee3"
3.16-upstream-stable: N/A "Introduced in 4.14-rc1 with 72548b093ee3"
sid: released (4.14.12-1)
4.9-stretch-security: N/A "Vulnerable code not present"
3.16-jessie-security: N/A "Vulnerable code not present"