svn commit: r316964 - stable/11/sys/compat/linux

[Dmitry Chagin]

Author: dchagin
Date: Sat Apr 15 15:13:54 2017
New Revision: 316964
URL: https://svnweb.freebsd.org/changeset/base/316964

Log:
  MFC r314868:
  
  Linux semop system call return EINVAL in case when the invalid nsops
  or semid values specified.

Modified:
  stable/11/sys/compat/linux/linux_ipc.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/compat/linux/linux_ipc.c
==============================================================================
--- stable/11/sys/compat/linux/linux_ipc.c	Sat Apr 15 15:12:25 2017	(r316963)
+++ stable/11/sys/compat/linux/linux_ipc.c	Sat Apr 15 15:13:54 2017	(r316964)
@@ -513,6 +513,8 @@ linux_semop(struct thread *td, struct li
 	int		nsops;
 	} */ bsd_args;
 
+	if (args->nsops < 1 || args->semid < 0)
+		return (EINVAL);
 	bsd_args.semid = args->semid;
 	bsd_args.sops = PTRIN(args->tsops);
 	bsd_args.nsops = args->nsops;