| Message ID | 20240724083956.1519277-2-gaosong@loongson.cn (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [PULL,1/1] target/loongarch: Fix helper_lddir() a CID INTEGER_OVERFLOW issue | expand |
diff --git a/target/loongarch/tcg/tlb_helper.c b/target/loongarch/tcg/tlb_helper.c index d6331f9b0b..97f38fc391 100644 --- a/target/loongarch/tcg/tlb_helper.c +++ b/target/loongarch/tcg/tlb_helper.c @@ -525,6 +525,7 @@ target_ulong helper_lddir(CPULoongArchState *env, target_ulong base, if (unlikely(level == 4)) { qemu_log_mask(LOG_GUEST_ERROR, "Attempted use of level 4 huge page\n"); + return base; } if (FIELD_EX64(base, TLBENTRY, LEVEL)) {
When the lddir level is 4 and the base is a HugePage, we may try to put value 4 into a field in the TLBENTRY that is only 2 bits wide. Fixes: Coverity CID 1547717 Fixes: 9c70db9a43388 ("target/loongarch: Fix tlb huge page loading issue") Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240724015853.1317396-1-gaosong@loongson.cn> --- target/loongarch/tcg/tlb_helper.c | 1 + 1 file changed, 1 insertion(+)