From 640689c04dbd2de4f7dbb7f9a56d614f31ab8fad Mon Sep 17 00:00:00 2001
From: ache <ache@FreeBSD.org>
Date: Thu, 23 Aug 2001 17:12:42 +0000
Subject: Copy yet one check for SEEK_END overflow

---
 sys/fs/smbfs/smbfs_vnops.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'sys/fs')

diff --git a/sys/fs/smbfs/smbfs_vnops.c b/sys/fs/smbfs/smbfs_vnops.c
index 286832f..011851b 100644
--- a/sys/fs/smbfs/smbfs_vnops.c
+++ b/sys/fs/smbfs/smbfs_vnops.c
@@ -998,7 +998,8 @@ smbfs_advlock(ap)
 		break;
 	    case SEEK_END:
 		/* 'size' is always >= 0 */
-		if (fl->l_start > 0 && size > OFF_MAX - fl->l_start)
+		if ((fl->l_start > 0 && size > OFF_MAX - fl->l_start) ||
+		    (fl->l_start < 0 && size + fl->l_start > OFF_MAX))
 			return EOVERFLOW;
 		start = fl->l_start + size;
 		break;
-- 
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