diff options
Diffstat (limited to 'ipc/shm.c')
| -rw-r--r-- | ipc/shm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/ipc/shm.c b/ipc/shm.c index 9e51bf246344..89fc354156cb 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -493,6 +493,9 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params) if (size < SHMMIN || size > ns->shm_ctlmax) return -EINVAL; + if (numpages << PAGE_SHIFT < size) + return -ENOSPC; + if (ns->shm_tot + numpages < ns->shm_tot || ns->shm_tot + numpages > ns->shm_ctlall) return -ENOSPC; |