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Revision 02e768c9fe47618056d876b5137424763486d886 authored by Linus Torvalds on 15 September 2023, 19:38:44 UTC, committed by Linus Torvalds on 15 September 2023, 19:38:44 UTC 
Merge tag 'selinux-pr-20230914' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
 
Pull selinux fix from Paul Moore:
 "A relatively small SELinux patch to fix an issue with a
  vfs/LSM/SELinux patch that went upstream during the recent merge
  window.

  The short version is that the original patch changed how we
  initialized mount options to resolve a NFS issue and we inadvertently
  broke a use case due to the changed behavior.

  The fix restores this behavior for the cases that require it while
  keeping the original NFS fix in place"

* tag 'selinux-pr-20230914' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: fix handling of empty opts in selinux_fs_context_submount()
2 parent s 8221097 + ccf1dab
Raw File
crash_dump.c 
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/kernel.h>
#include <linux/crash_dump.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/export.h>

/*
 * stores the physical address of elf header of crash image
 *
 * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by
 * is_kdump_kernel() to determine if we are booting after a panic. Hence put
 * it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE.
 */
unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX;
EXPORT_SYMBOL_GPL(elfcorehdr_addr);

/*
 * stores the size of elf header of crash image
 */
unsigned long long elfcorehdr_size;

/*
 * elfcorehdr= specifies the location of elf core header stored by the crashed
 * kernel. This option will be passed by kexec loader to the capture kernel.
 *
 * Syntax: elfcorehdr=[size[KMG]@]offset[KMG]
 */
static int __init setup_elfcorehdr(char *arg)
{
	char *end;
	if (!arg)
		return -EINVAL;
	elfcorehdr_addr = memparse(arg, &end);
	if (*end == '@') {
		elfcorehdr_size = elfcorehdr_addr;
		elfcorehdr_addr = memparse(end + 1, &end);
	}
	return end > arg ? 0 : -EINVAL;
}
early_param("elfcorehdr", setup_elfcorehdr);
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