Messages in this thread Patch in this message | | | From | Jiasheng Jiang <> | Subject | [PATCH] staging: r8188eu: Check for null pointer after calling skb_clone | Date | Fri, 7 Jan 2022 16:00:21 +0800 |
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As the possible failure of the allocation, the skb_clone may return NULL pointer. Therefore, it may cause the dereference of NULL pointer. Also, same as rtw_os_recv_indicate_pkt() in `drivers/staging/rtl8723bs/os_dep/recv_linux.c`, it should be better to add the check.
Fixes: 2b42bd58b321 ("staging: r8188eu: introduce new os_dep dir for RTL8188eu driver") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> --- drivers/staging/r8188eu/os_dep/recv_linux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/r8188eu/os_dep/recv_linux.c b/drivers/staging/r8188eu/os_dep/recv_linux.c index 917a63e3e94c..cf40f33f3295 100644 --- a/drivers/staging/r8188eu/os_dep/recv_linux.c +++ b/drivers/staging/r8188eu/os_dep/recv_linux.c @@ -151,7 +151,7 @@ int rtw_recv_indicatepkt(struct adapter *padapter, rtw_xmit_entry(skb, pnetdev); - if (bmcast) + if (bmcast && pskb2) skb = pskb2; else goto _recv_indicatepkt_end; -- 2.25.1
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