| From | Greg Kroah-Hartman <> | Subject | [ 042/120] ipv6: fix return value check in fib6_add() | Date | Thu, 11 Oct 2012 09:59:54 +0900 |
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3.4-stable review patch. If anyone has any objections, please let me know.
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From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
[ Upstream commit f950c0ecc78f745e490d615280e031de4dbb1306 ]
In case of error, the function fib6_add_1() returns ERR_PTR() or NULL pointer. The ERR_PTR() case check is missing in fib6_add().
dpatch engine is used to generated this patch. (https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/ipv6/ip6_fib.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -818,6 +818,10 @@ int fib6_add(struct fib6_node *root, str offsetof(struct rt6_info, rt6i_src), allow_create, replace_required); + if (IS_ERR(sn)) { + err = PTR_ERR(sn); + sn = NULL; + } if (!sn) { /* If it is failed, discard just allocated root, and then (in st_failure) stale node
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