coredump: fix crash dump failed when items of pr_regs not equal with …

…regs_num elf_emit_tcb_note: nitems(status.pr_regs) is 18, g_tcbinfo.regs_num is 17, then g_tcbinfo.reg_off.p[17] has been out of bounds Signed-off-by: wanggang26 <[email protected]>
apache · Jan 19, 2025 · adc4bf2 · adc4bf2
1 parent c937899
commit adc4bf2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/sched/misc/coredump.c b/sched/misc/coredump.c
@@ -328,7 +328,7 @@ static void elf_emit_tcb_note(FAR struct elf_dumpinfo_s *cinfo,
 
   if (regs != NULL)
     {
-      for (i = 0; i < nitems(status.pr_regs); i++)
+      for (i = 0; i < MIN(nitems(status.pr_regs), g_tcbinfo.regs_num); i++)
         {
           if (g_tcbinfo.reg_off.p[i] != UINT16_MAX)
             {