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!1189 内核mqueue 竞争漏洞修复 

Merge pull request !1189 from hw_llm/master
This commit is contained in:
openharmony_ci 2024-05-11 03:01:05 +00:00 committed by Gitee
parent e3eaae1b1c dbbb96c427
commit 180bf8e5cd
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GPG Key ID: 173E9B9CA92EEF8F
1 changed files with 6 additions and 2 deletions
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8
compat/posix/src/mqueue.c
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@ -604,17 +604,19 @@ int OsMqGetAttr(mqd_t personal, struct mq_attr *mqAttr)
struct mqarray *mqueueCB = NULL;
struct mqpersonal *privateMqPersonal = NULL;
(VOID)pthread_mutex_lock(&IPC_QUEUE_MUTEX);
privateMqPersonal = MqGetPrivDataBuff(personal);
if (privateMqPersonal == NULL) {
(VOID)pthread_mutex_unlock(&IPC_QUEUE_MUTEX);
return -1;
}
if (mqAttr == NULL) {
errno = EINVAL;
(VOID)pthread_mutex_unlock(&IPC_QUEUE_MUTEX);
return -1;
}
(VOID)pthread_mutex_lock(&IPC_QUEUE_MUTEX);
if (privateMqPersonal->mq_status != MQ_USE_MAGIC) {
errno = EBADF;
(VOID)pthread_mutex_unlock(&IPC_QUEUE_MUTEX);
@ -634,17 +636,19 @@ int OsMqSetAttr(mqd_t personal, const struct mq_attr *mqSetAttr, struct mq_attr
{
struct mqpersonal *privateMqPersonal = NULL;
(VOID)pthread_mutex_lock(&IPC_QUEUE_MUTEX);
privateMqPersonal = MqGetPrivDataBuff(personal);
if (privateMqPersonal == NULL) {
(VOID)pthread_mutex_unlock(&IPC_QUEUE_MUTEX);
return -1;
}
if (mqSetAttr == NULL) {
errno = EINVAL;
(VOID)pthread_mutex_unlock(&IPC_QUEUE_MUTEX);
return -1;
}
(VOID)pthread_mutex_lock(&IPC_QUEUE_MUTEX);
if (privateMqPersonal->mq_status != MQ_USE_MAGIC) {
errno = EBADF;
(VOID)pthread_mutex_unlock(&IPC_QUEUE_MUTEX);