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authorIngo Molnar <mingo@kernel.org>2017-11-07 12:51:10 +0300
committerIngo Molnar <mingo@kernel.org>2017-11-07 12:51:10 +0300
commit141d3b1daacd11bdbd6fa74c2b163093e10d17ee (patch)
tree04c98496f16ad2fe34c0cf4f31fedf4fe558c017 /drivers/net/tun.c
parentc201c91799d687c0a6d8c3272950f51aad5ffebe (diff)
parente4880bc5dfb1f02b152e62a894b5c6f3e995b3cf (diff)
downloadlinux-141d3b1daacd11bdbd6fa74c2b163093e10d17ee.tar.xz
Merge branch 'linus' into x86/apic, to resolve conflicts
Conflicts: arch/x86/include/asm/x2apic.h Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r--drivers/net/tun.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 5ce580f413b9..42bb820a56c9 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1286,6 +1286,7 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun,
buflen += SKB_DATA_ALIGN(len + pad);
rcu_read_unlock();
+ alloc_frag->offset = ALIGN((u64)alloc_frag->offset, SMP_CACHE_BYTES);
if (unlikely(!skb_page_frag_refill(buflen, alloc_frag, GFP_KERNEL)))
return ERR_PTR(-ENOMEM);
@@ -2027,6 +2028,9 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
if (!dev)
return -ENOMEM;
+ err = dev_get_valid_name(net, dev, name);
+ if (err < 0)
+ goto err_free_dev;
dev_net_set(dev, net);
dev->rtnl_link_ops = &tun_link_ops;
@@ -2425,6 +2429,10 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
ret = -EFAULT;
break;
}
+ if (sndbuf <= 0) {
+ ret = -EINVAL;
+ break;
+ }
tun->sndbuf = sndbuf;
tun_set_sndbuf(tun);