driver core: bus: Fix a potential double free
authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Tue, 29 Aug 2017 19:23:49 +0000 (21:23 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 31 Aug 2017 16:57:30 +0000 (18:57 +0200)
commit0f9b011d3321ca1079c7a46c18cb1956fbdb7bcb
tree9d80c487fe9e60ce59a0553ca30485a6775db046
parent7521621e600aeefe5ffcc1f90ae26a42fc20c452
driver core: bus: Fix a potential double free

The .release function of driver_ktype is 'driver_release()'.
This function frees the container_of this kobject.

So, this memory must not be freed explicitly in the error handling path of
'bus_add_driver()'. Otherwise a double free will occur.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/base/bus.c