diff options
| author | Samuel Ortiz <samuel@sortiz.org> | 2010-10-06 01:03:12 +0200 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2010-12-14 23:40:00 +0100 |
| commit | 207b45e2615ea1bca44e6efcda22f5d01e66f3f0 (patch) | |
| tree | cafcb3d2c5f64a05512ce41c42460b054b1d5d93 /net | |
| parent | c71b988600389db6b35e924382b93644baebf25d (diff) | |
irda: Fix heap memory corruption in iriap.c
commit 37f9fc452d138dfc4da2ee1ce5ae85094efc3606 upstream.
While parsing the GetValuebyClass command frame, we could potentially write
passed the skb->data pointer.
Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'net')
| -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 fce364c6c71a..5b743bdd89ba 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 */ |