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| author |   David S. Miller <davem@davemloft.net> | 2017-11-02 14:59:52 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-11-02 15:23:39 +0900 |
| commit | ed29668d1aa2c6f01e61dd616df13b5241cee7e0 (patch) | |
| tree | a086cf6311ed8623b292d3ea8d73c03f53207be0 /drivers/net/tun.c | |
| parent | Merge branch 'samples-pktgen-updates' (diff) | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace (diff) | |
| download | linux-dev-ed29668d1aa2c6f01e61dd616df13b5241cee7e0.tar.xz linux-dev-ed29668d1aa2c6f01e61dd616df13b5241cee7e0.zip | |
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.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 81d0787a6dab..8125956f62a1 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); |