diff options
| author |   anton <anton@openbsd.org> | 2019-01-21 18:09:21 +0000 |
|---|---|---|
| committer | anton <anton@openbsd.org> | 2019-01-21 18:09:21 +0000 |
| commit | 6bd4f7ca0ef936d4e355b60a534d1efc45dff893 (patch) | |
| tree | 7c0bf8ea9ece81fca5c96fbb924db82043892e20 /sys/msdosfs | |
| parent | Use the actual handshake message type in the certificate request handler. (diff) | |
| download | wireguard-openbsd-6bd4f7ca0ef936d4e355b60a534d1efc45dff893.tar.xz wireguard-openbsd-6bd4f7ca0ef936d4e355b60a534d1efc45dff893.zip | |
Introduce a dedicated entry point data structure for file locks. This new data
structure allows for better tracking of pending lock operations which is
essential in order to prevent a use-after-free once the underlying vnode is
gone.
Inspired by the lockf implementation in FreeBSD.
ok visa@
Reported-by: syzbot+d5540a236382f50f1dac@syzkaller.appspotmail.com
Diffstat (limited to 'sys/msdosfs')
| -rw-r--r-- | sys/msdosfs/denode.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/msdosfs/denode.h b/sys/msdosfs/denode.h index 5fe1d8862cd..3a3f629df52 100644 --- a/sys/msdosfs/denode.h +++ b/sys/msdosfs/denode.h @@ -1,4 +1,4 @@ -/* $OpenBSD: denode.h,v 1.33 2018/05/07 14:43:01 mpi Exp $ */ +/* $OpenBSD: denode.h,v 1.34 2019/01/21 18:09:21 anton Exp $ */ /* $NetBSD: denode.h,v 1.24 1997/10/17 11:23:39 ws Exp $ */ /*- @@ -148,7 +148,7 @@ struct denode { int de_fndcnt; /* number of slots before de_fndoffset */ long de_refcnt; /* reference count */ struct msdosfsmount *de_pmp; /* addr of our mount struct */ - struct lockf *de_lockf; /* byte level lock list */ + struct lockf_state *de_lockf; /* byte level lock list */ struct rrwlock de_lock; /* denode lock */ u_char de_Name[11]; /* name, from DOS directory entry */ u_char de_Attributes; /* attributes, from directory entry */ |