Undefined exception codes currently lead to an out-of-bounds array
access. Prevent this by treating undefined exception codes as
"reserved".
Signed-off-by: Lukas Auer <lukas.a...@aisec.fraunhofer.de>
---
arch/riscv/lib/interrupts.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/riscv/lib/interrupts.c b/arch/riscv/lib/interrupts.c
index 3d830c3273..32d0598750 100644
--- a/arch/riscv/lib/interrupts.c
+++ b/arch/riscv/lib/interrupts.c
@@ -81,6 +81,10 @@ static void _exit_trap(ulong code, ulong epc, struct pt_regs
*regs)
"Store/AMO page fault",
};
- printf("exception code: %ld , %s , epc %016lx , ra %016lx\n",
- code, exception_code[code], epc, regs->ra);
+ if (code < ARRAY_SIZE(exception_code)) {
+ printf("exception code: %ld , %s , epc %016lx , ra %016lx\n",
+ code, exception_code[code], epc, regs->ra);
+ } else {
+ printf("Reserved\n");
+ }
}
--
2.17.2
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