diff options
| author | Julian Wiedmann <jwi@linux.ibm.com> | 2018-09-12 15:31:35 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-10 08:53:22 +0200 |
| commit | 82e9788a693456aa47c5ef67654a4ba66cdd9ef2 (patch) | |
| tree | 0d0e06936c9c3c34238baac483a20a97f4e1c65c /drivers/s390/net/qeth_l2_main.c | |
| parent | 743f4a27e13ee967181626e3dd756fcc8fb4690e (diff) | |
s390/qeth: don't dump past end of unknown HW header
[ Upstream commit 0ac1487c4b2de383b91ecad1be561b8f7a2c15f4 ]
For inbound data with an unsupported HW header format, only dump the
actual HW header. We have no idea how much payload follows it, and what
it contains. Worst case, we dump past the end of the Inbound Buffer and
access whatever is located next in memory.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/s390/net/qeth_l2_main.c')
| -rw-r--r-- | drivers/s390/net/qeth_l2_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c index e94e9579914e..58404e69aa4b 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -491,7 +491,7 @@ static int qeth_l2_process_inbound_buffer(struct qeth_card *card, default: dev_kfree_skb_any(skb); QETH_CARD_TEXT(card, 3, "inbunkno"); - QETH_DBF_HEX(CTRL, 3, hdr, QETH_DBF_CTRL_LEN); + QETH_DBF_HEX(CTRL, 3, hdr, sizeof(*hdr)); continue; } work_done++; |