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Allow max. MAXPHYS sized mu_datasize for user command.

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Reviewed by Andrew Doran <ad@NetBSD.org>.
This commit is contained in:
jdolecek 2001-08-05 11:11:33 +00:00
parent ceb38aa743
commit 7810c0591b
1 changed files with 4 additions and 1 deletions
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5
sys/dev/ic/mlx.c
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@ -1,4 +1,4 @@
/* $NetBSD: mlx.c,v 1.12 2001/07/26 12:38:03 ad Exp $ */
/* $NetBSD: mlx.c,v 1.13 2001/08/05 11:11:33 jdolecek Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -1740,6 +1740,9 @@ mlx_user_command(struct mlx_softc *mlx, struct mlx_usercommand *mu)
* its initial contents.
*/
if (mu->mu_datasize > 0) {
if (mu->mu_datasize > MAXPHYS)
return (EINVAL);
kbuf = malloc(mu->mu_datasize, M_DEVBUF, M_WAITOK);
if (kbuf == NULL) {
DPRINTF(("mlx_user_command: malloc = NULL\n"));