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Oleksandr Tymoshenko 090d2b4515 efi: fix panic in kdump kernel 
[ Upstream commit 62b71cd73d ]

Check if get_next_variable() is actually valid pointer before
calling it. In kdump kernel this method is set to NULL that causes
panic during the kexec-ed kernel boot.

Tested with QEMU and OVMF firmware.

Fixes: bad267f9e1 ("efi: verify that variable services are supported")
Signed-off-by: Oleksandr Tymoshenko <ovt@google.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2024-04-03 15:32:35 +02:00
Documentation x86/Kconfig: Remove CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT 2024-04-03 15:32:32 +02:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
arch x86/fpu: Keep xfd_state in sync with MSR_IA32_XFD 2024-04-03 15:32:34 +02:00
block Revert "block/mq-deadline: use correct way to throttling write requests" 2024-04-03 15:32:22 +02:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto Revert "crypto: pkcs7 - remove sha1 support" 2024-04-03 15:32:31 +02:00
drivers efi: fix panic in kdump kernel 2024-04-03 15:32:35 +02:00
fs btrfs: qgroup: validate btrfs_qgroup_inherit parameter 2024-04-03 15:32:30 +02:00
include Revert "crypto: pkcs7 - remove sha1 support" 2024-04-03 15:32:31 +02:00
init modules: wait do_free_init correctly 2024-03-26 18:17:17 -04:00
io_uring io_uring/waitid: always remove waitid entry for cancel all 2024-04-03 15:32:24 +02:00
ipc shm: Slim down dependencies 2023-12-20 19:26:31 -05:00
kernel printk: Update @console_may_schedule in console_trylock_spinning() 2024-04-03 15:32:33 +02:00
lib pci_iounmap(): Fix MMIO mapping leak 2024-04-03 15:32:02 +02:00
mm memtest: use {READ,WRITE}_ONCE in memory scanning 2024-04-03 15:32:22 +02:00
net netfilter: nf_tables: reject constant set with timeout 2024-04-03 15:32:31 +02:00
rust Rust changes for v6.8 2024-01-11 13:05:41 -08:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
scripts kbuild: Move -Wenum-{compare-conditional,enum-conversion} into W=1 2024-04-03 15:32:18 +02:00
security lsm: handle the NULL buffer case in lsm_fill_user_ctx() 2024-04-03 15:32:22 +02:00
sound ASoC: amd: yc: Revert "add new YC platform variant (0x63) support" 2024-04-03 15:32:32 +02:00
tools wireguard: selftests: set RISCV_ISA_FALLBACK on riscv{32,64} 2024-04-03 15:32:26 +02:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt KVM: Always flush async #PF workqueue when vCPU is being destroyed 2024-04-03 15:32:03 +02:00
.clang-format clang-format: Update with v6.7-rc4's `for_each` macro list 2023-12-08 23:54:38 +01:00
.cocciconfig
…
.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.mailmap drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
.rustfmt.toml rust: add `.rustfmt.toml` 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: supplement of zswap maintainers update 2024-01-25 23:52:21 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
Makefile Linux 6.8.2 2024-03-26 18:23:34 -04:00
README
…

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.