From: Colin Ian King <[email protected]>
In the cases where iwpm_hash_bucket is NULL and where function
get_mapinfo_hash_bucket returns NULL then the map_info is never added
to hash_bucket_head and hence there is a leak of map_info. Fix this
by nullifying hash_bucket_head and if that is null we know that
that map_info was not added to hash_bucket_head and hence map_info
should be free'd.
Detected by CoverityScan, CID#1222481 ("Resource Leak")
Fixes: 30dc5e63d6a5 ("RDMA/core: Add support for iWARP Port Mapper user space service")
Signed-off-by: Colin Ian King <[email protected]>
---
drivers/infiniband/core/iwpm_util.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/core/iwpm_util.c b/drivers/infiniband/core/iwpm_util.c
index 9821ae900f6d..da12da1c36f6 100644
--- a/drivers/infiniband/core/iwpm_util.c
+++ b/drivers/infiniband/core/iwpm_util.c
@@ -114,7 +114,7 @@ int iwpm_create_mapinfo(struct sockaddr_storage *local_sockaddr,
struct sockaddr_storage *mapped_sockaddr,
u8 nl_client)
{
- struct hlist_head *hash_bucket_head;
+ struct hlist_head *hash_bucket_head = NULL;
struct iwpm_mapping_info *map_info;
unsigned long flags;
int ret = -EINVAL;
@@ -142,6 +142,9 @@ int iwpm_create_mapinfo(struct sockaddr_storage *local_sockaddr,
}
}
spin_unlock_irqrestore(&iwpm_mapinfo_lock, flags);
+
+ if (!hash_bucket_head)
+ kfree(map_info);
return ret;
}
--
2.17.0
On Wed, 2018-04-25 at 17:24 +0100, Colin King wrote:
> From: Colin Ian King <[email protected]>
>
> In the cases where iwpm_hash_bucket is NULL and where function
> get_mapinfo_hash_bucket returns NULL then the map_info is never added
> to hash_bucket_head and hence there is a leak of map_info. Fix this
> by nullifying hash_bucket_head and if that is null we know that
> that map_info was not added to hash_bucket_head and hence map_info
> should be free'd.
>
> Detected by CoverityScan, CID#1222481 ("Resource Leak")
>
> Fixes: 30dc5e63d6a5 ("RDMA/core: Add support for iWARP Port Mapper user space service")
> Signed-off-by: Colin Ian King <[email protected]>
Thanks, applied to for-rc.
--
Doug Ledford <[email protected]>
GPG KeyID: B826A3330E572FDD
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