diff options
Diffstat (limited to 'sys/kern/kern_descrip.c')
| -rw-r--r-- | sys/kern/kern_descrip.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c index 4527346..79b8e41 100644 --- a/sys/kern/kern_descrip.c +++ b/sys/kern/kern_descrip.c @@ -1315,7 +1315,7 @@ fdopen(dev, mode, type, p) * actions in dupfdopen below. Other callers of vn_open or VOP_OPEN * will simply report the error. */ - p->p_dupfd = minor(dev); + p->p_dupfd = dev2unit(dev); return (ENODEV); } @@ -1478,6 +1478,13 @@ fildesc_clone(void *arg, char *name, int namelen, dev_t *dev) return; if (u <= 2) return; + /* Don't clone higher than it makes sense */ + if (u >= maxfilesperproc) + return; + /* And don't clone higher than our minors will support */ + if (u > 0xffffff) + return; + u = unit2minor(u); *dev = make_dev(&fildesc_cdevsw, u, UID_BIN, GID_BIN, 0666, name); return; } |
