[nuttx] branch master updated: sim: use correct size to avoid buffer overflow

[xiaoxiang]

This is an automated email from the ASF dual-hosted git repository.

xiaoxiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/nuttx.git


The following commit(s) were added to refs/heads/master by this push:
     new fd34be15eb sim: use correct size to avoid buffer overflow
fd34be15eb is described below

commit fd34be15ebf91c4dc2bb38aef80a2a20af3b2e7a
Author: chenxiaoyi <chenxia...@xiaomi.com>
AuthorDate: Fri Aug 11 16:26:01 2023 +0800

    sim: use correct size to avoid buffer overflow
    
    Fix buffer overflow issue from PR #10128, since the sizeof
    xcpt_reg_t is different on 32/64 bit platform.
    
    Signed-off-by: chenxiaoyi <chenxia...@xiaomi.com>
---
 arch/sim/src/sim/sim_initialstate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sim/src/sim/sim_initialstate.c 
b/arch/sim/src/sim/sim_initialstate.c
index 76d967d28f..1a5a084568 100644
--- a/arch/sim/src/sim/sim_initialstate.c
+++ b/arch/sim/src/sim/sim_initialstate.c
@@ -113,7 +113,7 @@ void up_initial_state(struct tcb_s *tcb)
 
   /* Mask the interrupt until switching to the new task */
 
-  memset(&tcb->xcp.regs[JB_FLAG], 0xff, sizeof(xcpt_reg_t) * 2);
+  memset(&tcb->xcp.regs[JB_FLAG], 0xff, sizeof(uint32_t) * 2);
 
   tcb->xcp.regs[JB_PC] = (xcpt_reg_t)pre_start;