shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-06 19:08:57 +09:00
Code Issues Packages Projects Releases Wiki Activity

ax88172a: fix ax88172a_unbind() failures

Browse Source 
[ Upstream commit c28d9a2856 ]

If ax88172a_unbind() fails, make sure that the return code is
less than zero so that cleanup is done properly and avoid UAF.

Fixes: a9a51bd727 ("ax88172a: fix information leak on short answers")
Signed-off-by: George Kennedy <george.kennedy@oracle.com>
Reported-by: syzbot+4cd84f527bf4a10fc9c1@syzkaller.appspotmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
George Kennedy
2020-07-15 09:59:31 -04:00
committed by Chris
parent 741125b098
commit 643182e7f8
1 changed files with 1 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/usb/ax88172a.c
View File

@@ -217,6 +217,7 @@ static int ax88172a_bind(struct usbnet *dev, struct usb_interface *intf)
ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0);
if (ret < ETH_ALEN) {
netdev_err(dev->net, "Failed to read MAC address: %d\n", ret);
ret = -EIO;
goto free;
}
memcpy(dev->net->dev_addr, buf, ETH_ALEN);