Commit a3e1c3bb authored Aug 04, 2020 by Lianbo Jiang Committed by Ingo Molnar Aug 07, 2020

x86/crash: Correct the address boundary of function parameters



Let's carefully handle the boundary of the function parameter to make
sure that the arguments passed doesn't exceed the address range.

Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Dave Young <dyoung@redhat.com>
Link: https://lore.kernel.org/r/20200804044933.1973-2-lijiang@redhat.com

parent 4c7bfa38

arch/x86/kernel/crash.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -230,7 +230,7 @@ static int elf_header_exclude_ranges(struct crash_mem *cmem)
		int ret = 0;

		/* Exclude the low 1M because it is always reserved */
		ret = crash_exclude_mem_range(cmem, 0, 1<<20);
		ret = crash_exclude_mem_range(cmem, 0, (1<<20)-1);
		if (ret)
		return ret;

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