Author: dchagin
Date: Sat Mar 18 18:31:04 2017
New Revision: 315503
URL: https://svnweb.freebsd.org/changeset/base/315503
Log:
As noted by Roel Bouwman Linux allows a large buffer size than the
struct ucred size. Fix this.
PR: 102956
Reported by: Roel Bouwman <roel at qsp nl>
MFC after: 1 week
Modified:
head/sys/compat/linux/linux_socket.c
Modified: head/sys/compat/linux/linux_socket.c
==============================================================================
--- head/sys/compat/linux/linux_socket.c Sat Mar 18 18:26:56 2017
(r315502)
+++ head/sys/compat/linux/linux_socket.c Sat Mar 18 18:31:04 2017
(r315503)
@@ -1619,7 +1619,7 @@ linux_getsockopt(struct thread *td, stru
sizeof(linux_tv)));
/* NOTREACHED */
case LOCAL_PEERCRED:
- if (args->optlen != sizeof(lxu))
+ if (args->optlen < sizeof(lxu))
return (EINVAL);
xulen = sizeof(xu);
error = kern_getsockopt(td, args->s, bsd_args.level,
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