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x86/crash: Correct the address boundary of function parameters

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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
This commit is contained in:
Lianbo Jiang 2020-08-04 12:49:31 +08:00 committed by Ingo Molnar
parent 4c7bfa383e
commit a3e1c3bb24
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kernel/crash.c
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@ -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;