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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2013-04-17 01:10:38 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-20 01:32:31 +0400 |
| commit | e15465e1808542743627f13d1c0cbb7eacc82b83 (patch) | |
| tree | 498799f640d53224044d5cdcb0463a162d7744a2 /net/irda/iriap.c | |
| parent | fd7fc253289c419615c1c8bbe418598019567392 (diff) | |
| download | linux-e15465e1808542743627f13d1c0cbb7eacc82b83.tar.xz | |
irda: small read past the end of array in debug code
The "reason" can come from skb->data[] and it hasn't been capped so it
can be from 0-255 instead of just 0-6. For example in irlmp_state_dtr()
the code does:
reason = skb->data[3];
...
irlmp_disconnect_indication(self, reason, skb);
Also LMREASON has a couple other values which don't have entries in the
irlmp_reasons[] array. And 0xff is a valid reason as well which means
"unknown".
So far as I can see we don't actually care about "reason" except for in
the debug code.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/irda/iriap.c')
| -rw-r--r-- | net/irda/iriap.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/irda/iriap.c b/net/irda/iriap.c index 29340a9a6fb9..e1b37f5a2691 100644 --- a/net/irda/iriap.c +++ b/net/irda/iriap.c @@ -303,7 +303,8 @@ static void iriap_disconnect_indication(void *instance, void *sap, { struct iriap_cb *self; - IRDA_DEBUG(4, "%s(), reason=%s\n", __func__, irlmp_reasons[reason]); + IRDA_DEBUG(4, "%s(), reason=%s [%d]\n", __func__, + irlmp_reason_str(reason), reason); self = instance; |