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Merge branch 'qeth-fixes' 

Julian Wiedmann says:

====================
s390/qeth: fixes 2018-09-12

please apply the following qeth fixes for -net.

Patch 1 resolves a regression in an error path, while patch 2 enables
the SG support by default that was newly introduced with 4.19.
Patch 3 takes care of a longstanding problem with large-order
allocations, and patch 4 fixes a potential out-of-bounds access.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-09-12 13:12:52 -07:00
parent cc4dfb7f70 0ac1487c4b
commit 6b4d24de29
3 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/s390/net/qeth_core_main.c
View File

@ -25,6 +25,7 @@
#include <linux/netdevice.h>
#include <linux/netdev_features.h>
#include <linux/skbuff.h>
#include <linux/vmalloc.h>
#include <net/iucv/af_iucv.h>
#include <net/dsfield.h>
@ -4699,7 +4700,7 @@ static int qeth_query_oat_command(struct qeth_card *card, char __user *udata)
priv.buffer_len = oat_data.buffer_len;
priv.response_len = 0;
priv.buffer = kzalloc(oat_data.buffer_len, GFP_KERNEL);
priv.buffer = vzalloc(oat_data.buffer_len);
if (!priv.buffer) {
rc = -ENOMEM;
goto out;
@ -4740,7 +4741,7 @@ static int qeth_query_oat_command(struct qeth_card *card, char __user *udata)
rc = -EFAULT;
out_free:
kfree(priv.buffer);
vfree(priv.buffer);
out:
return rc;
}
@ -5706,6 +5707,8 @@ static struct net_device *qeth_alloc_netdev(struct qeth_card *card)
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
dev->hw_features |= NETIF_F_SG;
dev->vlan_features |= NETIF_F_SG;
if (IS_IQD(card))
dev->features |= NETIF_F_SG;
}
return dev;
@ -5768,8 +5771,10 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
qeth_update_from_chp_desc(card);
card->dev = qeth_alloc_netdev(card);
if (!card->dev)
if (!card->dev) {
rc = -ENOMEM;
goto err_card;
}
qeth_determine_capabilities(card);
enforced_disc = qeth_enforce_discipline(card);

2
drivers/s390/net/qeth_l2_main.c
View File

@ -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++;

2
drivers/s390/net/qeth_l3_main.c
View File

@ -1390,7 +1390,7 @@ static int qeth_l3_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++;