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| author | Greg Kroah-Hartman <gregkh@google.com> | 2019-02-23 10:12:45 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2019-02-23 10:12:45 +0100 |
| commit | a99ac1920cdf2c5906d74b41f026f34194b512ea (patch) | |
| tree | 582bb604c5ab9cd7865fed2303160feb317cb05e /drivers/net/vxlan.c | |
| parent | d93cfb73cdfc89c4e1a22297872b457fd7e99fd4 (diff) | |
| parent | af13f43f01a3e4a11686f5fa4de42ecec8ed71b1 (diff) | |
Merge 4.4.176 into android-4.4-p
Changes in 4.4.176
net: fix IPv6 prefix route residue
vsock: cope with memory allocation failure at socket creation time
hwmon: (lm80) Fix missing unlock on error in set_fan_div()
net: Fix for_each_netdev_feature on Big endian
sky2: Increase D3 delay again
net: Add header for usage of fls64()
tcp: tcp_v4_err() should be more careful
net: Do not allocate page fragments that are not skb aligned
tcp: clear icsk_backoff in tcp_write_queue_purge()
vxlan: test dev->flags & IFF_UP before calling netif_rx()
net: stmmac: Fix a race in EEE enable callback
net: ipv4: use a dedicated counter for icmp_v4 redirect packets
x86: livepatch: Treat R_X86_64_PLT32 as R_X86_64_PC32
kvm: fix kvm_ioctl_create_device() reference counting (CVE-2019-6974)
mfd: as3722: Handle interrupts on suspend
mfd: as3722: Mark PM functions as __maybe_unused
net/x25: do not hold the cpu too long in x25_new_lci()
mISDN: fix a race in dev_expire_timer()
ax25: fix possible use-after-free
KVM: VMX: Fix x2apic check in vmx_msr_bitmap_mode()
Linux 4.4.176
Change-Id: I82b10bb7d9692d4fe0386744934f09557d65ffe6
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/net/vxlan.c')
| -rw-r--r-- | drivers/net/vxlan.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index c41378214ede..553908adf3c5 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1881,7 +1881,7 @@ static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan, struct pcpu_sw_netstats *tx_stats, *rx_stats; union vxlan_addr loopback; union vxlan_addr *remote_ip = &dst_vxlan->default_dst.remote_ip; - struct net_device *dev = skb->dev; + struct net_device *dev; int len = skb->len; tx_stats = this_cpu_ptr(src_vxlan->dev->tstats); @@ -1901,8 +1901,15 @@ static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan, #endif } + rcu_read_lock(); + dev = skb->dev; + if (unlikely(!(dev->flags & IFF_UP))) { + kfree_skb(skb); + goto drop; + } + if (dst_vxlan->flags & VXLAN_F_LEARN) - vxlan_snoop(skb->dev, &loopback, eth_hdr(skb)->h_source); + vxlan_snoop(dev, &loopback, eth_hdr(skb)->h_source); u64_stats_update_begin(&tx_stats->syncp); tx_stats->tx_packets++; @@ -1915,8 +1922,10 @@ static void vxlan_encap_bypass(struct sk_buff *skb, struct vxlan_dev *src_vxlan, rx_stats->rx_bytes += len; u64_stats_update_end(&rx_stats->syncp); } else { +drop: dev->stats.rx_dropped++; } + rcu_read_unlock(); } static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, |