From 74d30eec046b3d362cdb7a9bc87f25d697d51abb Mon Sep 17 00:00:00 2001 From: Miles Bader Date: Wed, 12 Feb 1997 17:20:17 +0000 Subject: (diskfs_S_io_write): Check OFF for validity and return EINVAL if it's bogus. --- libdiskfs/io-write.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'libdiskfs/io-write.c') diff --git a/libdiskfs/io-write.c b/libdiskfs/io-write.c index 8b68e1a1..e84bdecb 100644 --- a/libdiskfs/io-write.c +++ b/libdiskfs/io-write.c @@ -1,5 +1,5 @@ /* - Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc. + Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as @@ -50,6 +50,11 @@ diskfs_S_io_write (struct protid *cred, cred->po->filepointer = np->dn_stat.st_size; off = cred->po->filepointer; } + if (off < 0) + { + err = EINVAL; + goto out; + } err = 0; while (off + (off_t) datalen > np->allocsize) -- cgit v1.2.3