diff options
| author | YueHaibing <yuehaibing@huawei.com> | 2019-04-01 09:35:54 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-23 08:18:36 +0100 |
| commit | a5c290ebb46d33f8700aab2edb996c9a0478b3b8 (patch) | |
| tree | 7efd5e50c606fe2b088da67bde3ad237d8ca5e53 | |
| parent | 9058e11caf2bc2ceae91846e61248ced4f8c9956 (diff) | |
dccp: Fix memleak in __feat_register_sp
commit 1d3ff0950e2b40dc861b1739029649d03f591820 upstream.
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: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/dccp/feat.c | 7 |
1 files changed, 6 insertions, 1 deletions
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; } /** |