From: YueHaibing yuehaibing@huawei.com
[ Upstream commit 1d3ff0950e2b40dc861b1739029649d03f591820 ]
If dccp_feat_push_change fails, we forget free the mem which is alloced by kmemdup in dccp_feat_clone_sp_val.
Reported-by: Hulk Robot hulkci@huawei.com Fixes: e8ef967a54f4 ("dccp: Registration routines for changing feature values") Reviewed-by: Mukesh Ojha mojha@codeaurora.org Signed-off-by: YueHaibing yuehaibing@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/dccp/feat.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/net/dccp/feat.c b/net/dccp/feat.c index f227f002c73d..db87d9f58019 100644 --- a/net/dccp/feat.c +++ b/net/dccp/feat.c @@ -738,7 +738,12 @@ static int __feat_register_sp(struct list_head *fn, u8 feat, u8 is_local, if (dccp_feat_clone_sp_val(&fval, sp_val, sp_len)) return -ENOMEM;
- return dccp_feat_push_change(fn, feat, is_local, mandatory, &fval); + if (dccp_feat_push_change(fn, feat, is_local, mandatory, &fval)) { + kfree(fval.sp.vec); + return -ENOMEM; + } + + return 0; }
/**