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Filename Latest commit message Latest commit date
Juergen Gross cda248f169 x86: Fix .brk attribute in linker script
commit 7e09ac27f43b382f5fe9bb7c7f4c465ece1f8a23 upstream.

Commit in Fixes added the "NOLOAD" attribute to the .brk section as a
"failsafe" measure.

Unfortunately, this leads to the linker no longer covering the .brk
section in a program header, resulting in the kernel loader not knowing
that the memory for the .brk section must be reserved.

This has led to crashes when loading the kernel as PV dom0 under Xen,
but other scenarios could be hit by the same problem (e.g. in case an
uncompressed kernel is used and the initrd is placed directly behind
it).

So drop the "NOLOAD" attribute. This has been verified to correctly
cover the .brk section by a program header of the resulting ELF file.

Fixes: e32683c6f7d2 ("x86/mm: Fix RESERVE_BRK() for older binutils")
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>
Link: https://lore.kernel.org/r/20220630071441.28576-4-jgross@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-11-08 11:23:40 +01:00
arch x86: Fix .brk attribute in linker script 2023-11-08 11:23:40 +01:00
block block/partition: fix signedness issue for Amiga partitions 2023-07-27 08:37:29 +02:00
certs
crypto X.509: if signature is unsupported skip validation 2023-09-23 10:59:55 +02:00
Documentation Documentation: sysctl: align cells in second content column 2023-10-25 11:53:20 +02:00
drivers rpmsg: Fix possible refcount leak in rpmsg_register_device_override() 2023-11-08 11:23:40 +01:00
fs ext4: fix BUG in ext4_mb_new_inode_pa() due to overflow 2023-11-08 11:23:39 +01:00
include rpmsg: Fix calling device_lock() on non-initialized device 2023-11-08 11:23:39 +01:00
init x86/mm: Initialize text poking earlier 2023-08-08 19:56:36 +02:00
ipc
kernel perf/core: Fix potential NULL deref 2023-11-08 11:23:37 +01:00
lib kobject: Fix slab-out-of-bounds in fill_kobj_path() 2023-11-08 11:23:38 +01:00
LICENSES
mm tmpfs: verify {g,u}id mount options correctly 2023-09-23 10:59:40 +02:00
net tcp: fix wrong RTO timeout when received SACK reneging 2023-11-08 11:23:36 +01:00
samples samples/bpf: Fix buffer overflow in tcp_basertt 2023-07-27 08:37:07 +02:00
scripts modpost: add missing else to the "of" check 2023-10-10 21:46:44 +02:00
security ima: rework CONFIG_IMA dependency block 2023-10-10 21:46:46 +02:00
sound ASoC: pxa: fix a memory leak in probe() 2023-10-25 11:53:24 +02:00
tools selftests/ftrace: Add new test case which checks non unique symbol 2023-11-08 11:23:34 +01:00
usr
virt KVM: Destroy target device if coalesced MMIO unregistration fails 2023-03-11 16:44:01 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS iio: stx104: Move to addac subdirectory 2023-08-30 16:27:12 +02:00
Makefile Linux 5.4.259 2023-10-25 11:53:25 +02:00
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.