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-rw-r--r--sys/dev/ccd/ccd.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/dev/ccd/ccd.c b/sys/dev/ccd/ccd.c
index 03f5a90..68df08e 100644
--- a/sys/dev/ccd/ccd.c
+++ b/sys/dev/ccd/ccd.c
@@ -1263,6 +1263,9 @@ ccdioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
if ((error = ccdlock(cs)) != 0)
return (error);
+ if (ccio->ccio_ndisks > CCD_MAXNDISKS)
+ return (EINVAL);
+
/* Fill in some important bits. */
cs->sc_ileave = ccio->ccio_ileave;
if (cs->sc_ileave == 0 &&
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