svn commit: r354477 - in head/sys: netinet netinet6

[Gleb Smirnoff]

On Thu, Nov 07, 2019 at 08:49:56PM +0000, Gleb Smirnoff wrote:
T> Author: glebius
T> Date: Thu Nov  7 20:49:56 2019
T> New Revision: 354477
T> URL: https://svnweb.freebsd.org/changeset/base/354477
T> 
T> Log:
T>   Since r353292 on input path we are always in network epoch, when
T>   we lookup PCBs.  Thus, do not enter epoch recursively in
T>   in_pcblookup_hash() and in6_pcblookup_hash().  Same applies to
T>   tcp_ctlinput() and tcp6_ctlinput().
T>   
T>   This leaves several sysctl(9) handlers that return PCB credentials
T>   unprotected.  Add epoch enter/exit to all of them.
T>   
T>   Differential Revision:	https://reviews.freebsd.org/D22197

Note: only this commit references the differential revision,
as it is the core change.  But preceeding commits and following
commits related to PCB locking were all part of this review.

-- 
Gleb Smirnoff