]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
driver: base: fix UAF when driver_attach failed
authorSchspa Shi <schspa@gmail.com>
Fri, 13 May 2022 11:24:44 +0000 (19:24 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 14 Jun 2022 16:41:19 +0000 (18:41 +0200)
commit5389101257828d1913d713d9a40acbe14f5961df
tree29c8ef93a03b7cd10512ee52998aeb50db232bf3
parent0efa0391b72230a2877de6deca98f38eddadc5a1
driver: base: fix UAF when driver_attach failed

[ Upstream commit 310862e574001a97ad02272bac0fd13f75f42a27 ]

When driver_attach(drv); failed, the driver_private will be freed.
But it has been added to the bus, which caused a UAF.

To fix it, we need to delete it from the bus when failed.

Fixes: 190888ac01d0 ("driver core: fix possible missing of device probe")
Signed-off-by: Schspa Shi <schspa@gmail.com>
Link: https://lore.kernel.org/r/20220513112444.45112-1-schspa@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/base/bus.c