Messages in this thread Patch in this message | | | From | Lianbo Jiang <> | Subject | [PATCH 1/3] x86/crash: Correct the address boundary of function parameters | Date | Tue, 4 Aug 2020 12:49:31 +0800 |
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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> --- arch/x86/kernel/crash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c index fd87b59452a3..a8f3af257e26 100644 --- a/arch/x86/kernel/crash.c +++ b/arch/x86/kernel/crash.c @@ -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; -- 2.17.1
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