From 224c04973db1125fcebefffd86115f99f50f8277 Mon Sep 17 00:00:00 2001 From: Denis Kirjanov Date: Tue, 30 Jul 2019 15:13:57 +0200 Subject: [PATCH] net: usb: pegasus: fix improper read if get_registers() fail get_registers() may fail with -ENOMEM and in this case we can read a garbage from the status variable tmp. Reported-by: syzbot+3499a83b2d062ae409d4@syzkaller.appspotmail.com Signed-off-by: Denis Kirjanov Signed-off-by: David S. Miller --- drivers/net/usb/pegasus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c index 6d25dea5ad4b..f7d117d80cfb 100644 --- a/drivers/net/usb/pegasus.c +++ b/drivers/net/usb/pegasus.c @@ -282,7 +282,7 @@ static void mdio_write(struct net_device *dev, int phy_id, int loc, int val) static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata) { int i; - __u8 tmp; + __u8 tmp = 0; __le16 retdatai; int ret;