svn commit: r314868 - head/sys/compat/linux

[Dmitry Chagin]

Author: dchagin
Date: Tue Mar  7 17:12:22 2017
New Revision: 314868
URL: https://svnweb.freebsd.org/changeset/base/314868

Log:
  Linux semop system call return EINVAL in case when the invalid nsops
  or semid values specified.
  
  MFC after:	1 month

Modified:
  head/sys/compat/linux/linux_ipc.c

Modified: head/sys/compat/linux/linux_ipc.c
==============================================================================
--- head/sys/compat/linux/linux_ipc.c	Tue Mar  7 17:09:12 2017	(r314867)
+++ head/sys/compat/linux/linux_ipc.c	Tue Mar  7 17:12:22 2017	(r314868)
@@ -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;