From 6db3518ba4fcddd71049718f138552999f0d97b4 Mon Sep 17 00:00:00 2001 From: Ilya Leoshkevich Date: Sat, 5 Aug 2023 01:55:33 +0200 Subject: target/s390x: Fix VSTL with a large length The length is always truncated to 16 bytes. Do not probe more than that. Cc: qemu-stable@nongnu.org Fixes: 0e0a5b49ad58 ("s390x/tcg: Implement VECTOR STORE WITH LENGTH") Signed-off-by: Ilya Leoshkevich Message-Id: <20230804235624.263260-1-iii@linux.ibm.com> Reviewed-by: David Hildenbrand Signed-off-by: Thomas Huth --- target/s390x/tcg/vec_helper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/s390x/tcg/vec_helper.c b/target/s390x/tcg/vec_helper.c index 48d86722b2..dafc4c3582 100644 --- a/target/s390x/tcg/vec_helper.c +++ b/target/s390x/tcg/vec_helper.c @@ -193,7 +193,7 @@ void HELPER(vstl)(CPUS390XState *env, const void *v1, uint64_t addr, uint64_t bytes) { /* Probe write access before actually modifying memory */ - probe_write_access(env, addr, bytes, GETPC()); + probe_write_access(env, addr, MIN(bytes, 16), GETPC()); if (likely(bytes >= 16)) { cpu_stq_data_ra(env, addr, s390_vec_read_element64(v1, 0), GETPC()); -- cgit v1.2.3