From mboxrd@z Thu Jan 1 00:00:00 1970 From: k.khlebnikov@samsung.com (Konstantin Khlebnikov) Date: Thu, 05 Dec 2013 17:30:16 +0400 Subject: [PATCH 2/2] ARM64: fix framepointer check in unwind_frame In-Reply-To: <20131205133010.16410.96824.stgit@buzz> References: <20131205133010.16410.96824.stgit@buzz> Message-ID: <20131205133016.16410.42062.stgit@buzz> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org We need at least 24 bytes above frame pointer. Signed-off-by: Konstantin Khlebnikov --- arch/arm64/kernel/stacktrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c index d25459f..c3b6c63 100644 --- a/arch/arm64/kernel/stacktrace.c +++ b/arch/arm64/kernel/stacktrace.c @@ -43,7 +43,7 @@ int unwind_frame(struct stackframe *frame) low = frame->sp; high = ALIGN(low, THREAD_SIZE); - if (fp < low || fp > high || fp & 0xf) + if (fp < low || fp > high - 0x18 || fp & 0xf) return -EINVAL; frame->sp = fp + 0x10;