diff options
| -rw-r--r-- | sys/vm/vm_mmap.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sys/vm/vm_mmap.c b/sys/vm/vm_mmap.c index 42446fb..b9b26bf 100644 --- a/sys/vm/vm_mmap.c +++ b/sys/vm/vm_mmap.c @@ -46,6 +46,7 @@ */ #include "opt_compat.h" +#include "opt_mac.h" #include <sys/param.h> #include <sys/systm.h> @@ -60,6 +61,7 @@ #include <sys/vnode.h> #include <sys/fcntl.h> #include <sys/file.h> +#include <sys/mac.h> #include <sys/mman.h> #include <sys/conf.h> #include <sys/stat.h> @@ -426,8 +428,16 @@ mmap(td, uap) } mtx_unlock(&Giant); - error = vm_mmap(&vms->vm_map, &addr, size, prot, maxprot, - flags, handle, pos); + error = 0; +#ifdef MAC + if (handle != NULL && (flags & MAP_SHARED) != 0) { + error = mac_check_vnode_mmap(td->td_ucred, + (struct vnode *)handle, prot); + } +#endif + if (error == 0) + error = vm_mmap(&vms->vm_map, &addr, size, prot, maxprot, + flags, handle, pos); mtx_lock(&Giant); if (error == 0) td->td_retval[0] = (register_t) (addr + pageoff); |
