diff options
| author | Szymon Janc <szymon.janc@tieto.com> | 2012-10-29 14:04:43 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-12-03 11:38:14 -0800 |
| commit | ae93d015d1868e5cdfb2329df4e7102b3eddbf1f (patch) | |
| tree | cd33466d41489fbbcff1eebcdc475a1ff3ab29a1 | |
| parent | 741a51d4a8ba2d22ce9209b34ff66e84f5ca645c (diff) | |
NFC: pn533: Fix use after free
commit 770f750bc2b8312489c8e45306f551d08a319d3c upstream.
cmd was freed in pn533_dep_link_up regardless of
pn533_send_cmd_frame_async return code. Cmd is passed as argument to
pn533_in_dep_link_up_complete callback and should be freed there.
Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/nfc/pn533.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c index d606f52fec84..413fcad3833c 100644 --- a/drivers/nfc/pn533.c +++ b/drivers/nfc/pn533.c @@ -1759,12 +1759,8 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target, rc = pn533_send_cmd_frame_async(dev, dev->out_frame, dev->in_frame, dev->in_maxlen, pn533_in_dep_link_up_complete, cmd, GFP_KERNEL); - if (rc) - goto out; - - -out: - kfree(cmd); + if (rc < 0) + kfree(cmd); return rc; } |