From: Colin Ian King colin.king@canonical.com
commit 8ae9a588ca35eb9c32dc03299c5e1f4a1e9a9617 upstream.
Currently the rtw_sprintf prints the contents of thread_name onto thread_name and this can lead to a potential copy of a string over itself. Avoid this by printing the literal string RTWHALXT instread of the contents of thread_name.
Addresses-Coverity: ("copy of overlapping memory") Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver") Signed-off-by: Colin Ian King colin.king@canonical.com Reviewed-by: Hans de Goede hdegoede@redhat.com Link: https://lore.kernel.org/r/20200126220549.9849-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
--- a/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c +++ b/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c @@ -478,14 +478,13 @@ int rtl8723bs_xmit_thread(void *context) s32 ret; struct adapter *padapter; struct xmit_priv *pxmitpriv; - u8 thread_name[20] = "RTWHALXT"; - + u8 thread_name[20];
ret = _SUCCESS; padapter = context; pxmitpriv = &padapter->xmitpriv;
- rtw_sprintf(thread_name, 20, "%s-"ADPT_FMT, thread_name, ADPT_ARG(padapter)); + rtw_sprintf(thread_name, 20, "RTWHALXT-" ADPT_FMT, ADPT_ARG(padapter)); thread_enter(thread_name);
DBG_871X("start "FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(padapter));