After successfully allocating buf with kzalloc(), if
cfg80211_inform_bss_frame() returns NULL, the code jumps to the exit
label without freeing buf, causing a memory leak. Add kfree(buf) before
the goto to properly free the buffer in this error case.

Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@oracle.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
---
 drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
index 60edeae1cffe..d80e23cfdf8d 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
@@ -314,8 +314,10 @@ struct cfg80211_bss *rtw_cfg80211_inform_bss(struct adapter *padapter, struct wl
 	bss = cfg80211_inform_bss_frame(wiphy, notify_channel, (struct ieee80211_mgmt *)buf,
 					len, notify_signal, GFP_ATOMIC);
 
-	if (unlikely(!bss))
+	if (unlikely(!bss)) {
+		kfree(buf);
 		goto exit;
+	}
 
 	cfg80211_put_bss(wiphy, bss);
 	kfree(buf);
-- 
2.50.1

On Thu, Jan 29, 2026 at 04:16:40PM -0800, Samasth Norway Ananda wrote:
> After successfully allocating buf with kzalloc(), if
> cfg80211_inform_bss_frame() returns NULL, the code jumps to the exit
> label without freeing buf, causing a memory leak. Add kfree(buf) before
> the goto to properly free the buffer in this error case.
> 
> Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@oracle.com>
> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
> ---
>  drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
> index 60edeae1cffe..d80e23cfdf8d 100644
> --- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
> +++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
> @@ -314,8 +314,10 @@ struct cfg80211_bss *rtw_cfg80211_inform_bss(struct adapter *padapter, struct wl
>  	bss = cfg80211_inform_bss_frame(wiphy, notify_channel, (struct ieee80211_mgmt *)buf,
>  					len, notify_signal, GFP_ATOMIC);
>  
> -	if (unlikely(!bss))
> +	if (unlikely(!bss)) {
> +		kfree(buf);
>  		goto exit;
> +	}

This is already fixed in my tree, what branch did you make this against?

Always work against linux-next at the least, ideally against the proper
subsystem developer tree as documented in the MAINTAINERS file.

thanks,

greg k-h