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libs/machine:strnlen need check return

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Signed-off-by: anjiahao <anjiahao@xiaomi.com>
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anjiahao
2024-01-16 13:31:27 +08:00
committed by Xiang Xiao
parent 603c87977f
commit 22e5c88479
1 changed files with 4 additions and 2 deletions
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libs/libc/machine/arch_libc.c
+4 -2
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@@ -268,12 +268,14 @@ int strncmp(FAR const char *s1, FAR const char *s2, size_t n)
#ifdef CONFIG_LIBC_ARCH_STRNLEN #ifdef CONFIG_LIBC_ARCH_STRNLEN
size_t strnlen(FAR const char *s, size_t maxlen) size_t strnlen(FAR const char *s, size_t maxlen)
{ {
size_t ret = arch_strnlen(s, maxlen);
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN
# ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK
__asan_loadN((FAR void *)s, maxlen + 1); __asan_loadN((FAR void *)s, ret);
# endif # endif
# endif # endif
return arch_strnlen(s, maxlen);
return ret;
} }
#endif #endif