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dccp: Fix memleak in __feat_register_sp

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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: e8ef967a54 ("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>
This commit is contained in:
YueHaibing 2019-04-01 09:35:54 +08:00 committed by David S. Miller
parent 09279e615c
commit 1d3ff0950e
1 changed files with 6 additions and 1 deletions
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7
net/dccp/feat.c
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@ -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;
}
/**