From: AlexChen <[email protected]> The size of env->mmu.regs is 3, but the range of 'rn' is [0, 5]. To avoid data access out of bounds, only if 'rn' is less than 3, we can print env->mmu.regs[rn]. In other cases, we can print env->mmu.regs[MMU_R_TLBX].
Reported-by: Euler Robot <[email protected]> Signed-off-by: Alex Chen <[email protected]> Reviewed-by: Thomas Huth <[email protected]> Reviewed-by: Edgar E. Iglesias <[email protected]> Message-Id: <[email protected]> Signed-off-by: Thomas Huth <[email protected]> --- target/microblaze/mmu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/target/microblaze/mmu.c b/target/microblaze/mmu.c index 2baaef7545..1e426963ba 100644 --- a/target/microblaze/mmu.c +++ b/target/microblaze/mmu.c @@ -234,7 +234,8 @@ void mmu_write(CPUMBState *env, bool ext, uint32_t rn, uint32_t v) unsigned int i; qemu_log_mask(CPU_LOG_MMU, - "%s rn=%d=%x old=%x\n", __func__, rn, v, env->mmu.regs[rn]); + "%s rn=%d=%x old=%x\n", __func__, rn, v, + rn < 3 ? env->mmu.regs[rn] : env->mmu.regs[MMU_R_TLBX]); if (cpu->cfg.mmu < 2 || !cpu->cfg.mmu_tlb_access) { qemu_log_mask(LOG_GUEST_ERROR, "MMU access on MMU-less system\n"); -- 2.18.4
