Ard Biesheuvel 11497fd69c efi: ssdt: Don't free memory if ACPI table was loaded successfully ...

commit 4b017e59f0 upstream.

Amadeusz reports KASAN use-after-free errors introduced by commit
3881ee0b1e ("efi: avoid efivars layer when loading SSDTs from
variables"). The problem appears to be that the memory that holds the
new ACPI table is now freed unconditionally, instead of only when the
ACPI core reported a failure to load the table.

So let's fix this, by omitting the kfree() on success.

Cc: <stable@vger.kernel.org> # v6.0
Link: https://lore.kernel.org/all/a101a10a-4fbb-5fae-2e3c-76cf96ed8fbd@linux.intel.com/
Fixes: 3881ee0b1e ("efi: avoid efivars layer when loading SSDTs from variables")
Reported-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-10-26 12:22:57 +02:00

..

arm_ffa

firmware: arm_ffa: Remove incorrect assignment of driver_data

2022-04-29 14:51:46 +01:00

arm_scmi

Merge tag 'mmc-v6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

2022-09-28 11:36:31 -07:00

broadcom

firmware: tee_bnxt: Use UUID API for exporting the UUID

2022-05-05 18:14:29 -07:00

cirrus

firmware: cs_dsp: Add memory chunk helpers

2022-07-22 13:40:00 +01:00

efi

efi: ssdt: Don't free memory if ACPI table was loaded successfully

2022-10-26 12:22:57 +02:00

google

firmware: google: Test spinlock on panic path to avoid lockups

2022-10-21 12:38:49 +02:00

imx

firmware: imx: scu-pd: imx8q: add vpu mu resources

2022-02-20 14:55:32 +08:00

meson

firmware: meson-sm: enable build as module

2020-10-26 13:36:05 -07:00

psci

firmware/psci: fix application of sizeof to pointer

2021-10-26 17:40:54 -05:00

smccc

printk: stop including cache.h from printk.h

2022-05-13 07:20:07 -07:00

tegra

firmware: tegra: Fix error check return value of debugfs_create_file()

2022-07-08 17:56:03 +02:00

xilinx

firmware: xilinx: Add TF_A_PM_REGISTER_SGI SMC call

2022-06-29 14:46:22 +02:00

arm_scpi.c

firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails

2022-07-04 14:28:42 +01:00

arm_sdei.c

ACPI: APEI: explicit init of HEST and GHES in apci_init()

2022-03-03 20:24:22 +01:00

dmi_scan.c

firmware: dmi: Use the proper accessor for the version field

2022-07-30 18:28:46 +02:00

dmi-id.c

firmware: dmi: Move product_sku info to the end of the modalias

2021-09-02 17:28:53 +02:00

dmi-sysfs.c

firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle

2022-05-19 18:56:56 +02:00

edd.c

edd: simplify the check of 'attr->test' in edd_populate_dir()

2022-05-19 18:57:04 +02:00

iscsi_ibft_find.c

iscsi_ibft: fix warning in reserve_ibft_region()

2021-08-05 19:47:57 -04:00

iscsi_ibft.c

iscsi_ibft: Fix isa_bus_to_virt not working under ARM

2021-09-02 16:22:00 -04:00

Kconfig

Merge tag 'sound-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2022-05-25 16:55:16 -07:00

Makefile

Merge tag 'efi-next-for-v5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi

2022-06-03 13:39:30 -07:00

memmap.c

firmware: memmap: use default_groups in kobj_type

2022-01-05 19:17:29 +01:00

mtk-adsp-ipc.c

firmware: mediatek: Use meaningful names for mbox

2022-06-22 13:39:30 +01:00

pcdp.c

…

pcdp.h

…

qcom_scm-legacy.c

firmware: qcom_scm-legacy: correct kerneldoc

2022-06-25 22:04:31 -05:00

qcom_scm-smc.c

firmware: qcom_scm: Reduce locking section for __get_convention()

2021-04-06 21:25:23 -05:00

qcom_scm.c

firmware: qcom_scm: Add bw voting support to the SCM interface

2022-06-29 21:48:32 -05:00

qcom_scm.h

firmware: qcom: scm: Add support for MC boot address API

2022-02-03 21:54:48 -06:00

qemu_fw_cfg.c

firmware: qemu_fw_cfg: remove sysfs entries explicitly

2022-01-14 18:50:52 -05:00

raspberrypi.c

firmware: raspberrypi: Fix a leak in 'rpi_firmware_get()'

2021-08-18 16:02:08 +02:00

scpi_pm_domain.c

firmware: arm_scpi: Fix string overflow in SCPI genpd driver

2021-12-13 15:17:37 +01:00

stratix10-rsu.c

firmware: stratix10-rsu: extend RSU driver to get DCMF status

2022-07-14 16:55:09 +02:00

stratix10-svc.c

firmware: stratix10-svc: To support a command ATF Get Version

2022-07-14 16:55:09 +02:00

sysfb_simplefb.c

firmware: sysfb: Make sysfb_create_simplefb() return a pdev pointer

2022-06-29 09:51:31 +02:00

sysfb.c

firmware: sysfb: Add sysfb_disable() helper function

2022-06-29 09:51:41 +02:00

ti_sci.c

firmware: ti_sci: Switch transport to polled mode during system suspend

2022-05-03 06:52:11 -05:00

ti_sci.h

firmware: ti_sci: rm: Add new ops for ring configuration

2020-11-01 19:38:02 -08:00

trusted_foundations.c

…

turris-mox-rwtm.c

Merge tag 'mvebu-drivers-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/drivers

2021-06-23 18:57:40 -07:00