diff options
| author | Ted Unangst <tedu@cvs.openbsd.org> | 2004-05-05 23:52:11 +0000 |
|---|---|---|
| committer | Ted Unangst <tedu@cvs.openbsd.org> | 2004-05-05 23:52:11 +0000 |
| commit | c7bd171a110dc759928d58a928869b7e355969c2 (patch) | |
| tree | ee7900fd3f27674c3f98e4cc4b2038b8fc2c7fe1 /sys/miscfs/procfs/procfs_subr.c | |
| parent | 9fa54860a762e0b9de75773b73d02d619703f634 (diff) | |
make sure uio_offset is a safe value, with suggestions from millert@
ok deraadt@ millert@
problem noticed by deprotect.com
Diffstat (limited to 'sys/miscfs/procfs/procfs_subr.c')
| -rw-r--r-- | sys/miscfs/procfs/procfs_subr.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/miscfs/procfs/procfs_subr.c b/sys/miscfs/procfs/procfs_subr.c index 38723b253b4..a7f9ff5f06f 100644 --- a/sys/miscfs/procfs/procfs_subr.c +++ b/sys/miscfs/procfs/procfs_subr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: procfs_subr.c,v 1.20 2003/08/11 10:08:04 mickey Exp $ */ +/* $OpenBSD: procfs_subr.c,v 1.21 2004/05/05 23:52:10 tedu Exp $ */ /* $NetBSD: procfs_subr.c,v 1.15 1996/02/12 15:01:42 christos Exp $ */ /* @@ -214,6 +214,8 @@ procfs_rw(v) /* Do not permit games to be played with init(8) */ if (p->p_pid == 1 && securelevel > 0 && uio->uio_rw == UIO_WRITE) return (EPERM); + if (uio->uio_offset < 0) + return (EINVAL); switch (pfs->pfs_type) { case Pnote: |