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| author | dg <dg@FreeBSD.org> | 1995-05-25 01:35:24 +0000 |
|---|---|---|
| committer | dg <dg@FreeBSD.org> | 1995-05-25 01:35:24 +0000 |
| commit | a4ec59246f1ae1566f39b2ba1183f1f7d162cb46 (patch) | |
| tree | d8e24731030c03fe1ed42d7824786e43f50fbeec /sys/miscfs/kernfs/kernfs_vnops.c | |
| parent | e28ba9e18807abc8a6fc5b05e74a2be1b87ee5fe (diff) | |
| download | FreeBSD-src-a4ec59246f1ae1566f39b2ba1183f1f7d162cb46.zip FreeBSD-src-a4ec59246f1ae1566f39b2ba1183f1f7d162cb46.tar.gz | |
Fixed panic that resulted from mmaping files in kernfs and procfs. A
regular user could panic the machine with a simple "tail /proc/curproc/mem"
command. The problem was twofold: both kernfs and procfs didn't fill in
the mnt_stat statfs struct (which would later lead to an integer divide
fault in the vnode pager), and kernfs bogusly paniced if a bmap was
attempted.
Reviewed by: John Dyson
Diffstat (limited to 'sys/miscfs/kernfs/kernfs_vnops.c')
| -rw-r--r-- | sys/miscfs/kernfs/kernfs_vnops.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/sys/miscfs/kernfs/kernfs_vnops.c b/sys/miscfs/kernfs/kernfs_vnops.c index b38fc5e..a9bf9e7 100644 --- a/sys/miscfs/kernfs/kernfs_vnops.c +++ b/sys/miscfs/kernfs/kernfs_vnops.c @@ -34,7 +34,7 @@ * SUCH DAMAGE. * * @(#)kernfs_vnops.c 8.6 (Berkeley) 2/10/94 - * $Id: kernfs_vnops.c,v 1.6 1994/10/02 17:48:09 phk Exp $ + * $Id: kernfs_vnops.c,v 1.7 1994/11/15 20:30:56 jkh Exp $ */ /* @@ -693,9 +693,7 @@ kernfs_enotsupp() int kernfs_badop() { - - panic("kernfs: bad op"); - /* NOTREACHED */ + return (EIO); } /* |
