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Fix potential NULL pointer dereference #9872

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Fix potential NULL pointer dereference #9872

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6 changes: 3 additions & 3 deletions TSRM/tsrm_win32.c
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Original file line number Diff line number Diff line change
Expand Up @@ -702,7 +702,7 @@ TSRM_API void *shmat(int key, const void *shmaddr, int flags)
{/*{{{*/
shm_pair *shm = shm_get(key, NULL);

if (!shm->segment) {
if (!shm || !shm->segment) {
return (void*)-1;
}

Expand All @@ -726,7 +726,7 @@ TSRM_API int shmdt(const void *shmaddr)
shm_pair *shm = shm_get(0, (void*)shmaddr);
int ret;

if (!shm->segment) {
if (!shm || !shm->segment) {
return -1;
}

Expand All @@ -746,7 +746,7 @@ TSRM_API int shmctl(int key, int cmd, struct shmid_ds *buf)
{/*{{{*/
shm_pair *shm = shm_get(key, NULL);

if (!shm->segment) {
if (!shm || !shm->segment) {
return -1;
}

Expand Down