* [PATCH] genetlink: Fix a memory leak on error path
@ 2019-03-21 7:02 Yue Haibing
2019-03-21 9:26 ` Kirill Tkhai
2019-03-21 16:30 ` David Miller
0 siblings, 2 replies; 3+ messages in thread
From: Yue Haibing @ 2019-03-21 7:02 UTC (permalink / raw)
To: davem, keescook, ktkhai; +Cc: linux-kernel, netdev, YueHaibing
From: YueHaibing <yuehaibing@huawei.com>
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>
---
net/netlink/genetlink.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 25eeb6d..f0ec068 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -366,7 +366,7 @@ 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);
@@ -385,6 +385,7 @@ 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();
--
2.7.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] genetlink: Fix a memory leak on error path
2019-03-21 7:02 [PATCH] genetlink: Fix a memory leak on error path Yue Haibing
@ 2019-03-21 9:26 ` Kirill Tkhai
2019-03-21 16:30 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: Kirill Tkhai @ 2019-03-21 9:26 UTC (permalink / raw)
To: Yue Haibing, davem, keescook; +Cc: linux-kernel, netdev
On 21.03.2019 10:02, Yue Haibing wrote:
> From: YueHaibing <yuehaibing@huawei.com>
>
> 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>
> ---
> net/netlink/genetlink.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
> index 25eeb6d..f0ec068 100644
> --- a/net/netlink/genetlink.c
> +++ b/net/netlink/genetlink.c
> @@ -366,7 +366,7 @@ 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);
> @@ -385,6 +385,7 @@ 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();
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] genetlink: Fix a memory leak on error path
2019-03-21 7:02 [PATCH] genetlink: Fix a memory leak on error path Yue Haibing
2019-03-21 9:26 ` Kirill Tkhai
@ 2019-03-21 16:30 ` David Miller
1 sibling, 0 replies; 3+ messages in thread
From: David Miller @ 2019-03-21 16:30 UTC (permalink / raw)
To: yuehaibing; +Cc: keescook, ktkhai, linux-kernel, netdev
From: Yue Haibing <yuehaibing@huawei.com>
Date: Thu, 21 Mar 2019 15:02:50 +0800
> From: YueHaibing <yuehaibing@huawei.com>
>
> 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>
Applied and queued up for -stable, thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-03-21 16:30 UTC | newest]
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2019-03-21 7:02 [PATCH] genetlink: Fix a memory leak on error path Yue Haibing
2019-03-21 9:26 ` Kirill Tkhai
2019-03-21 16:30 ` David Miller
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