From bcf07c3f24e949b6a16f69ca5d21c5ecb1c9056e Mon Sep 17 00:00:00 2001 From: Patrick Georgi Date: Mon, 29 Dec 2014 19:34:56 +0100 Subject: libpayload: don't dereference null pointer in exception handler Change-Id: I93e5e2488ddd616c91769beb1acd96f8ebd7d505 Signed-off-by: Patrick Georgi Found-by: Coverity Scan Reviewed-on: http://review.coreboot.org/7971 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth Reviewed-by: Paul Menzel --- payloads/libpayload/arch/x86/exception.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'payloads/libpayload') diff --git a/payloads/libpayload/arch/x86/exception.c b/payloads/libpayload/arch/x86/exception.c index 33bef71e66..e1ff3a54c6 100644 --- a/payloads/libpayload/arch/x86/exception.c +++ b/payloads/libpayload/arch/x86/exception.c @@ -141,14 +141,16 @@ static void dump_stack(uintptr_t addr, size_t bytes) static void dump_exception_state(struct exception_handler_state *state, struct exception_handler_info *info) { - if (info) + if (info) { printf("Exception %d (%s)\n", state->vector, info->name); - else + + if (info->error_code_printer) { + printf("Error code: "); + info->error_code_printer(state->error_code); + printf("\n"); + } + } else { printf("Unrecognized exception %d\n", state->vector); - if (info->error_code_printer) { - printf("Error code: "); - info->error_code_printer(state->error_code); - printf("\n"); } printf("EIP: 0x%08x\n", state->regs.eip); printf("CS: 0x%04x\n", state->regs.cs); -- cgit v1.2.3