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| author | Wang Hai <wanghai38@huawei.com> | 2020-06-09 22:18:16 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-17 16:40:32 +0200 |
| commit | 05e275d8742b4e1fca4a355dfc5549f7e2626605 (patch) | |
| tree | d4fdef388a91adef6722bd3e9884fd62123c5988 /include/net | |
| parent | 5ab6f11621a52e1d6416098a69680be74521632e (diff) | |
| download | linux-stable-05e275d8742b4e1fca4a355dfc5549f7e2626605.tar.gz linux-stable-05e275d8742b4e1fca4a355dfc5549f7e2626605.tar.bz2 linux-stable-05e275d8742b4e1fca4a355dfc5549f7e2626605.zip | |
dccp: Fix possible memleak in dccp_init and dccp_fini
[ Upstream commit c96b6acc8f89a4a7f6258dfe1d077654c11415be ]
There are some memory leaks in dccp_init() and dccp_fini().
In dccp_fini() and the error handling path in dccp_init(), free lhash2
is missing. Add inet_hashinfo2_free_mod() to do it.
If inet_hashinfo2_init_mod() failed in dccp_init(),
percpu_counter_destroy() should be called to destroy dccp_orphan_count.
It need to goto out_free_percpu when inet_hashinfo2_init_mod() failed.
Fixes: c92c81df93df ("net: dccp: fix kernel crash on module load")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/inet_hashtables.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h index d0019d3395cf..59802eb8d2cc 100644 --- a/include/net/inet_hashtables.h +++ b/include/net/inet_hashtables.h @@ -185,6 +185,12 @@ static inline spinlock_t *inet_ehash_lockp( int inet_ehash_locks_alloc(struct inet_hashinfo *hashinfo); +static inline void inet_hashinfo2_free_mod(struct inet_hashinfo *h) +{ + kfree(h->lhash2); + h->lhash2 = NULL; +} + static inline void inet_ehash_locks_free(struct inet_hashinfo *hashinfo) { kvfree(hashinfo->ehash_locks); |