From 2a39e7aa8a98f777f0732ca7125b6c9668791760 Mon Sep 17 00:00:00 2001 From: Pan Bian Date: Sun, 23 Apr 2017 17:38:35 +0800 Subject: [PATCH] wan: pc300too: abort path on failure In function pc300_pci_init_one(), on the ioremap error path, function pc300_pci_remove_one() is called to free the allocated memory. However, the path is not terminated, and the freed memory will be used later, resulting in use-after-free bugs. This path fixes the bug. Signed-off-by: Pan Bian Signed-off-by: David S. Miller --- drivers/net/wan/pc300too.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wan/pc300too.c b/drivers/net/wan/pc300too.c index e1dd1ec18d64..b9b934b7713c 100644 --- a/drivers/net/wan/pc300too.c +++ b/drivers/net/wan/pc300too.c @@ -346,6 +346,7 @@ static int pc300_pci_init_one(struct pci_dev *pdev, card->rambase == NULL) { pr_err("ioremap() failed\n"); pc300_pci_remove_one(pdev); + return -ENOMEM; } /* PLX PCI 9050 workaround for local configuration register read bug */ -- 2.20.1