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(parent: 185b29c) | patch
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>
Thu, 19 May 2022 17:28:42 +0000 (19:28 +0200)
commit310862e574001a97ad02272bac0fd13f75f42a27
tree1c2c74d10a8273d9c654441c8919dbc8287a1d7btree | snapshot
parent185b29c6151cf3a5c387ca5904c51c6af3292a0ccommit | diff
driver: base: fix UAF when driver_attach failed

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>
drivers/base/bus.c diff | blob | history
Domain: System / Kernel;