diff options
| author | Philip Guenther <guenther@cvs.openbsd.org> | 2015-08-25 19:47:57 +0000 |
|---|---|---|
| committer | Philip Guenther <guenther@cvs.openbsd.org> | 2015-08-25 19:47:57 +0000 |
| commit | 3918f7593b9c68116dbdd13da3af5aa71536f945 (patch) | |
| tree | af80a475272df4d5b959dd97afc9c24dfbdf07be /sys/uvm | |
| parent | f47efdb34885a1181ca51b7d8dc04842d5750af5 (diff) | |
In sys_kbind(), pages from uvm_map_extract() must be written to with kcopy()
ok kettenis@
Diffstat (limited to 'sys/uvm')
| -rw-r--r-- | sys/uvm/uvm_mmap.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/uvm/uvm_mmap.c b/sys/uvm/uvm_mmap.c index 2b7f0c2c463..e0860d19275 100644 --- a/sys/uvm/uvm_mmap.c +++ b/sys/uvm/uvm_mmap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_mmap.c,v 1.112 2015/07/20 22:41:41 miod Exp $ */ +/* $OpenBSD: uvm_mmap.c,v 1.113 2015/08/25 19:47:56 guenther Exp $ */ /* $NetBSD: uvm_mmap.c,v 1.49 2001/02/18 21:19:08 chs Exp $ */ /* @@ -1236,7 +1236,9 @@ sys_kbind(struct proc *p, void *v, register_t *retval) } /* do the update */ - memcpy((char *)kva + pageoffset, data, paramp[i].kb_size); + if ((error = kcopy(data, (char *)kva + pageoffset, + paramp[i].kb_size))) + break; data += paramp[i].kb_size; } |