[PATCH] ia64: fix sys32_select()

4c5ece64 · Arun Sharma · David Mosberger · 0e2134fe · 4c5ece64
Commit 4c5ece64 authored May 06, 2003 by Arun Sharma Committed by David Mosberger May 06, 2003
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arch/ia64/ia32/sys_ia32.c arch/ia64/ia32/sys_ia32.c +2 -2

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--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -836,8 +836,9 @@ sys32_select (int n, fd_set *inp, fd_set *outp, fd_set *exp, struct compat_timev
 		}
 	}

+	size = FDS_BYTES(n);
 	ret = -EINVAL;
-	if (n < 0)
+	if (n < 0 || size < n)
 		goto out_nofds;

 	if (n > current->files->max_fdset)
@@ -849,7 +850,6 @@ sys32_select (int n, fd_set *inp, fd_set *outp, fd_set *exp, struct compat_timev
 	 * long-words.
 	 */
 	ret = -ENOMEM;
-	size = FDS_BYTES(n);
 	bits = kmalloc(6 * size, GFP_KERNEL);
 	if (!bits)
 		goto out_nofds;