From: Djordje Todorovic <Djordje.Todorovic@htecgroup.com>
Date: Thu, 15 Jan 2026 13:01:17 +0000 (+0000)
Subject: target/riscv: Fix null pointer dereference in cpu_set_exception_base
X-Git-Tag: v11.0.0-rc1~11^2~15
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=519f0bdf4c41be49d30bd60a64cd315d6cf32e4e;p=thirdparty%2Fqemu.git

target/riscv: Fix null pointer dereference in cpu_set_exception_base

Add missing return statement after logging the error when cs is NULL.
Without this, the function continues to dereference the null pointer.

Resolves: Coverity CID 1644077

Signed-off-by: Djordje Todorovic <djordje.todorovic@htecgroup.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20260115130110.2825796-3-djordje.todorovic@htecgroup.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index e56470a3748..9be79622f43 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -83,6 +83,7 @@ void cpu_set_exception_base(int vp_index, target_ulong address)
         qemu_log_mask(LOG_GUEST_ERROR,
                       "cpu_set_exception_base: invalid vp_index: %u",
                       vp_index);
+        return;
     }
     cpu = RISCV_CPU(cs);
     cpu->env.resetvec = address;