From: Dan Carpenter dan.carpenter@oracle.com
commit b535917c51acc97fb0761b1edec85f1f3d02bda4 upstream.
The free_rtllib() function frees the "dev" pointer so there is use after free on the next line. Re-arrange things to avoid that.
Fixes: 66898177e7e5 ("staging: rtl8192e: Fix unload/reload problem") Cc: stable stable@vger.kernel.org Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Link: https://lore.kernel.org/r/20211117072016.GA5237@kili Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/staging/rtl8192e/rtl8192e/rtl_core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c +++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c @@ -2582,13 +2582,14 @@ static void _rtl92e_pci_disconnect(struc free_irq(dev->irq, dev); priv->irq = 0; } - free_rtllib(dev);
if (dev->mem_start != 0) { iounmap((void __iomem *)dev->mem_start); release_mem_region(pci_resource_start(pdev, 1), pci_resource_len(pdev, 1)); } + + free_rtllib(dev); } else { priv = rtllib_priv(dev); }