Messages in this thread Patch in this message | | | Date | Thu, 06 Aug 2020 17:10:07 -0000 | From | "tip-bot2 for Lianbo Jiang" <> | Subject | [tip: x86/urgent] x86/crash: Correct the address boundary of function parameters |
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The following commit has been merged into the x86/urgent branch of tip:
Commit-ID: 5b89a35f8c11a7846b06ac729d7de72044f7fc60 Gitweb: https://git.kernel.org/tip/5b89a35f8c11a7846b06ac729d7de72044f7fc60 Author: Lianbo Jiang <lijiang@redhat.com> AuthorDate: Tue, 04 Aug 2020 12:49:31 +08:00 Committer: Ingo Molnar <mingo@kernel.org> CommitterDate: Thu, 06 Aug 2020 15:25:58 +02:00
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 --- 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 fd87b59..a8f3af2 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;
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