Message ID | 37f9fc452d138dfc4da2ee1ce5ae85094efc3606.1286756123.git.sameo@linux.intel.com |
---|---|
State | Accepted, archived |
Delegated to: | David Miller |
Headers | show |
diff --git a/net/irda/iriap.c b/net/irda/iriap.c index fce364c..5b743bd 100644 --- a/net/irda/iriap.c +++ b/net/irda/iriap.c @@ -502,7 +502,8 @@ static void iriap_getvaluebyclass_confirm(struct iriap_cb *self, IRDA_DEBUG(4, "%s(), strlen=%d\n", __func__, value_len); /* Make sure the string is null-terminated */ - fp[n+value_len] = 0x00; + if (n + value_len < skb->len) + fp[n + value_len] = 0x00; IRDA_DEBUG(4, "Got string %s\n", fp+n); /* Will truncate to IAS_MAX_STRING bytes */
While parsing the GetValuebyClass command frame, we could potentially write passed the skb->data pointer. Cc: stable@kernel.org Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> --- net/irda/iriap.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)