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| author |   Julian Wiedmann <jwi@linux.ibm.com> | 2018-09-12 15:31:35 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-09-12 13:12:51 -0700 |
| commit | 0ac1487c4b2de383b91ecad1be561b8f7a2c15f4 (patch) | |
| tree | cb561bc0890533dbf5e3a0a3e82362f50f27940d /drivers/s390/net/qeth_l2_main.c | |
| parent | s390/qeth: use vzalloc for QUERY OAT buffer (diff) | |
| download | linux-dev-0ac1487c4b2de383b91ecad1be561b8f7a2c15f4.tar.xz linux-dev-0ac1487c4b2de383b91ecad1be561b8f7a2c15f4.zip | |
s390/qeth: don't dump past end of unknown HW header
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>
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 710fa74892ae..b5e38531733f 100644 --- a/drivers/s390/net/qeth_l2_main.c +++ b/drivers/s390/net/qeth_l2_main.c @@ -423,7 +423,7 @@ 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++; |