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| author |   millert <millert@openbsd.org> | 2015-04-30 21:18:45 +0000 |
|---|---|---|
| committer | millert <millert@openbsd.org> | 2015-04-30 21:18:45 +0000 |
| commit | 38e3b1d365cf0ed01e20e7dd03db8f4085944fd9 (patch) | |
| tree | e26afa04ca1137d248c5aab93f8a54dae159ef66 /sys | |
| parent | Convert to if_input(). (diff) | |
| download | wireguard-openbsd-38e3b1d365cf0ed01e20e7dd03db8f4085944fd9.tar.xz wireguard-openbsd-38e3b1d365cf0ed01e20e7dd03db8f4085944fd9.zip | |
Avoid NULL deref in fd_getfile_mode(); OK deraadt@
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/kern/kern_descrip.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c index 2c8955c4d01..93d6a9c4cfe 100644 --- a/sys/kern/kern_descrip.c +++ b/sys/kern/kern_descrip.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_descrip.c,v 1.118 2015/04/30 09:20:51 mpi Exp $ */ +/* $OpenBSD: kern_descrip.c,v 1.119 2015/04/30 21:18:45 millert Exp $ */ /* $NetBSD: kern_descrip.c,v 1.42 1996/03/30 22:24:38 christos Exp $ */ /* @@ -201,7 +201,7 @@ fd_getfile_mode(struct filedesc *fdp, int fd, int mode) fp = fd_getfile(fdp, fd); - if ((fp->f_flag & mode) == 0) + if (fp == NULL || (fp->f_flag & mode) == 0) return (NULL); return (fp); |