The hash_accept function in crypto/algif_hash.c in the Linux kernel before 4.3.6 allows local users to cause a denial of service (OOPS) by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data.
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.6
www.openwall.com/lists/oss-security/2016/11/15/2
www.securityfocus.com/bid/94309
access.redhat.com/errata/RHSA-2017:1297
access.redhat.com/errata/RHSA-2017:1298
access.redhat.com/errata/RHSA-2017:1308
bugzilla.redhat.com/show_bug.cgi?id=1388821
github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45