diff options
| author | YueHaibing <yuehaibing@huawei.com> | 2019-03-21 15:02:50 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-03 06:25:08 +0200 |
| commit | 111fdc6e948b36115e29cf3b1981058d033ffd54 (patch) | |
| tree | 9fb7c7f29e17a68b91a5474a9ba017b0fe5268d0 /net/netlink/genetlink.c | |
| parent | 27eb4125f2a50a0bffe029c5dfcb853666ba92ba (diff) | |
genetlink: Fix a memory leak on error path
[ Upstream commit ceabee6c59943bdd5e1da1a6a20dc7ee5f8113a2 ]
In genl_register_family(), when idr_alloc() fails,
we forget to free the memory we possibly allocate for
family->attrbuf.
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 2ae0f17df1cd ("genetlink: use idr to track families")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/netlink/genetlink.c')
| -rw-r--r-- | net/netlink/genetlink.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index b9ce82c9440f..e9b8b0b0ac43 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -365,7 +365,7 @@ int genl_register_family(struct genl_family *family) start, end + 1, GFP_KERNEL); if (family->id < 0) { err = family->id; - goto errout_locked; + goto errout_free; } err = genl_validate_assign_mc_groups(family); @@ -384,6 +384,7 @@ int genl_register_family(struct genl_family *family) errout_remove: idr_remove(&genl_fam_idr, family->id); +errout_free: kfree(family->attrbuf); errout_locked: genl_unlock_all(); |