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| author | Florian Fainelli <f.fainelli@gmail.com> | 2017-08-21 12:59:10 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-01 20:40:01 +0200 |
| commit | 9429a6b7e94eef4473ab2e5a6fbaddd8a65e24e9 (patch) | |
| tree | 24ef88c8b429e0158c8fa2aaa4d1d80c7a0dec4e /net/hsr | |
| parent | 5427e3999207256cc878a4cac8ba7a1cbbc840ea (diff) | |
| download | linux-rt-9429a6b7e94eef4473ab2e5a6fbaddd8a65e24e9.tar.gz | |
net/hsr: Check skb_put_padto() return value
commit 414e7d76af6d3ec2dd4e9079927dbe0e2e4ca914 upstream.
skb_put_padto() will free the sk_buff passed as reference in case of
errors, but we still need to check its return value and decide what to
do.
Detected by CoverityScan, CID#1416688 ("CHECKED_RETURN")
Fixes: ee1c27977284 ("net/hsr: Added support for HSR v1")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/hsr')
| -rw-r--r-- | net/hsr/hsr_device.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c index aead5ac4dbf6..ea07c91ab348 100644 --- a/net/hsr/hsr_device.c +++ b/net/hsr/hsr_device.c @@ -315,7 +315,8 @@ static void send_hsr_supervision_frame(struct hsr_port *master, hsr_sp = (typeof(hsr_sp)) skb_put(skb, sizeof(struct hsr_sup_payload)); ether_addr_copy(hsr_sp->MacAddressA, master->dev->dev_addr); - skb_put_padto(skb, ETH_ZLEN + HSR_HLEN); + if (skb_put_padto(skb, ETH_ZLEN + HSR_HLEN)) + return; hsr_forward_skb(skb, master); return; |