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authorDavid S. Miller <davem@davemloft.net>2017-11-02 14:59:52 +0900
committerDavid S. Miller <davem@davemloft.net>2017-11-02 15:23:39 +0900
commited29668d1aa2c6f01e61dd616df13b5241cee7e0 (patch)
treea086cf6311ed8623b292d3ea8d73c03f53207be0 /drivers/net/tun.c
parent65c959a39b7e9ad6b443b74904486b4a75b0232f (diff)
parent3a99df9a3d14cd866b5516f8cba515a3bfd554ab (diff)
downloadop-kernel-dev-ed29668d1aa2c6f01e61dd616df13b5241cee7e0.zip
op-kernel-dev-ed29668d1aa2c6f01e61dd616df13b5241cee7e0.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Smooth Cong Wang's bug fix into 'net-next'. Basically put the bulk of the tcf_block_put() logic from 'net' into tcf_block_put_ext(), but after the offload unbind. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r--drivers/net/tun.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 81d0787..8125956 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -2654,6 +2654,10 @@ 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);
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