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UCX: do not dereference NULL pointer in wpmem_[free|flush] #8035

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merged 1 commit into from
Sep 4, 2020
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UCX: do not dereference NULL pointer in wpmem_[free|flush] #8035

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11 changes: 10 additions & 1 deletion opal/mca/common/ucx/common_ucx_wpool.c
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Original file line number Diff line number Diff line change
Expand Up @@ -528,6 +528,10 @@ static int _comm_ucx_wpmem_map(opal_common_ucx_wpool_t *wpool,
void opal_common_ucx_wpmem_free(opal_common_ucx_wpmem_t *mem)
{
_mem_record_t *mem_rec = NULL, *next;

if (NULL == mem) {
return;
}

OBJ_DESTRUCT(&mem->tls_key);

Expand Down Expand Up @@ -824,9 +828,14 @@ opal_common_ucx_wpmem_flush(opal_common_ucx_wpmem_t *mem,
int target)
{
_ctx_record_t *ctx_rec;
opal_common_ucx_ctx_t *ctx = mem->ctx;
opal_common_ucx_ctx_t *ctx;
int rc = OPAL_SUCCESS;

if (NULL == mem) {
return OPAL_SUCCESS;
}

ctx = mem->ctx;
opal_mutex_lock(&ctx->mutex);

OPAL_LIST_FOREACH(ctx_rec, &ctx->ctx_records, _ctx_record_t) {
Expand Down