kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-10-22 19:14:51 +00:00
Code Issues Releases Packages Activity
linux/drivers/firmware
History
Ard Biesheuvel 4b0c547923 x86/efistub: Don't clear BSS twice in mixed mode 
[ Upstream commit df7ecce842 ]

Clearing BSS should only be done once, at the very beginning.
efi_pe_entry() is the entrypoint from the firmware, which may not clear
BSS and so it is done explicitly. However, efi_pe_entry() is also used
as an entrypoint by the mixed mode startup code, in which case BSS will
already have been cleared, and doing it again at this point will corrupt
global variables holding the firmware's GDT/IDT and segment selectors.

So make the memset() conditional on whether the EFI stub is running in
native mode.

Fixes: b3810c5a2c ("x86/efistub: Clear decompressor BSS in native EFI entrypoint")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-03-26 18:21:03 -04:00
..
arm_ffa firmware: arm_ffa: Allow the FF-A drivers to use 32bit mode of messaging 2023-11-20 11:52:03 +01:00
arm_scmi firmware: arm_scmi: Fix double free in SMC transport cleanup path 2024-03-26 18:20:37 -04:00
broadcom firmware: tee_bnxt: Use UUID API for exporting the UUID 2022-05-05 18:14:29 -07:00
cirrus firmware: cirrus: cs_dsp: Only log list of algorithms in debug build 2023-10-06 14:56:56 +02:00
efi x86/efistub: Don't clear BSS twice in mixed mode 2024-03-26 18:21:03 -04:00
google firmware: coreboot: framebuffer: Ignore reserved pixel color bits 2023-03-10 09:34:02 +01:00
imx firmware/imx-dsp: Fix use_after_free in imx_dsp_setup_channels() 2023-11-02 09:35:25 +01:00
meson firmware: meson_sm: populate platform devices from sm device tree data 2024-01-25 15:27:24 -08:00
psci cpuidle: drivers: firmware: psci: Dont instrument suspend code 2023-03-10 09:33:47 +01:00
smccc firmware: smccc: Fix use of uninitialised results structure 2023-08-11 12:08:10 +02:00
tegra firmware: tegra: Switch over to memdup_user() 2022-09-15 12:45:42 +02:00
xilinx firmware: xilinx: don't make a sleepable memory allocation from an atomic context 2023-03-22 13:33:56 +01:00
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 arm64: sdei: abort running SDEI handlers during crash 2023-09-13 09:43:03 +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 null-ptr-deref in dmi_sysfs_register_handle 2023-03-10 09:33:34 +01:00
dmi_scan.c firmware: dmi: Fortify entry point length checks 2022-09-23 14:53:14 +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.c iscsi_ibft: Fix isa_bus_to_virt not working under ARM 2021-09-02 16:22:00 -04:00
iscsi_ibft_find.c iscsi_ibft: fix warning in reserve_ibft_region() 2021-08-05 19:47:57 -04:00
Kconfig sound updates for 5.19-rc1 2022-05-25 16:55:16 -07:00
Makefile Follow-up tweaks for the EFI changes in v5.19 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 efi/ia64: Move HCDP and MPS table handling into IA64 arch code 2020-02-23 21:59:42 +01:00
pcdp.h firmware: pcdp: Replace zero-length array with flexible-array 2020-06-15 23:08:32 -05:00
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: use 64-bit calling convention only when client is 64-bit 2023-11-28 17:07:12 +00:00
qcom_scm.h firmware: qcom: scm: remove unused __qcom_scm_init declaration 2022-09-13 15:14:54 -05:00
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 possible memory leak in rpi_firmware_probe() 2022-12-31 13:32:40 +01:00
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: Fix an NULL vs IS_ERR() bug in probe 2023-09-06 21:27:02 +01:00
sysfb.c efi: sysfb_efi: Fix DMI quirks not working for simpledrm 2023-03-30 12:49:22 +02:00
sysfb_simplefb.c efi: sysfb_efi: Fix DMI quirks not working for simpledrm 2023-03-30 12:49:22 +02:00
ti_sci.c firmware: ti_sci: Fix an off-by-one in ti_sci_debugfs_create() 2024-01-25 15:27:24 -08:00
ti_sci.h firmware: ti_sci: rm: Add new ops for ring configuration 2020-11-01 19:38:02 -08:00
trusted_foundations.c firmware: tf: Different way of L2 cache enabling after LP2 suspend 2020-05-06 18:27:26 +02:00
turris-mox-rwtm.c mvebu drivers for 5.14 (part 1) 2021-06-23 18:57:40 -07:00