Shin'ichiro Kawasaki ccd1751092 bus: fsl-mc-bus: fix KASAN use-after-free in fsl_mc_bus_remove() ... commit 928ea98252 upstream. In fsl_mc_bus_remove(), mc->root_mc_bus_dev->mc_io is passed to fsl_destroy_mc_io(). However, mc->root_mc_bus_dev is already freed in fsl_mc_device_remove(). Then reference to mc->root_mc_bus_dev->mc_io triggers KASAN use-after-free. To avoid the use-after-free, keep the reference to mc->root_mc_bus_dev->mc_io in a local variable and pass to fsl_destroy_mc_io(). This patch needs rework to apply to kernels older than v5.15. Fixes: f93627146f ("staging: fsl-mc: fix asymmetry in destroy of mc_io") Cc: stable@vger.kernel.org # v5.15+ Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Link: https://lore.kernel.org/r/20220601105159.87752-1-shinichiro.kawasaki@wdc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-06-22 14:22:04 +02:00
..
dpbp.c	bus: fsl-mc: remove duplicated include files	2018-12-06 15:53:20 +01:00
dpcon.c	bus: fsl-mc: remove duplicated include files	2018-12-06 15:53:20 +01:00
dpmcp.c	bus: fsl-mc: change mc_command in fsl_mc_command	2018-03-23 15:52:48 +01:00
dprc-driver.c	bus: fsl-mc: dprc-driver: Fix some missing/incorrect function parameter descriptions	2021-06-17 13:44:32 +02:00
dprc.c	bus: fsl-mc: dprc: Fix a couple of misspelling and formatting issues	2021-06-17 13:44:32 +02:00
fsl-mc-allocator.c	bus: fsl-mc: fsl-mc-allocator: Fix misspelling of 'new_mc_adev' and demote non-kernel-doc headers	2021-06-17 13:44:33 +02:00
fsl-mc-bus.c	bus: fsl-mc-bus: fix KASAN use-after-free in fsl_mc_bus_remove()	2022-06-22 14:22:04 +02:00
fsl-mc-msi.c	bus: fsl-mc-msi: Fix a little doc-rot pertaining to 'np' to 'fwnode' conversion	2021-06-17 13:44:33 +02:00
fsl-mc-private.h	bus: fsl-mc: add autorescan sysfs	2021-01-27 15:13:53 +01:00
fsl-mc-uapi.c	bus: fsl-mc: list more commands as accepted through the ioctl	2021-02-09 10:56:39 +01:00
Kconfig	bus: fsl-mc: add fsl-mc userspace support	2021-01-27 15:13:52 +01:00
Makefile	bus: fsl-mc: add fsl-mc userspace support	2021-01-27 15:13:52 +01:00
mc-io.c	bus: fsl-mc: mc-io: Correct misdocumentation of 'dpmcp_dev' param	2021-06-17 13:44:33 +02:00
mc-sys.c	bus: fsl-mc: mc-sys: Supply missing function names in kernel-doc headers	2021-06-17 13:44:32 +02:00