Bug 114451

Summary:

[nfs] [patch] prevent NFS server possible crash

Product:

Base System

Reporter:

Rick Macklem <rick>

Component:

kern

Assignee:

freebsd-bugs (Nobody) <bugs>

Status:

Closed Overcome By Events

Severity:

Affects Only Me

CC:

jpaetzel

Priority:

Normal

Version:

Unspecified

Hardware:

Any

OS:

Any

Attachments:

Description	Flags
file.txt	none

Description Rick Macklem 2007-07-09 18:00:08 UTC

Looking at the code, it is pretty obvious that sys/nfsserver/nfs_serv.c would
crash in readdirplus if VFS_VGET() returns an error other than EOPNOTSUPP. See
the "patch" file.

Fix: See patch file. NB, I haven't actually tested this.

Patch attached with submission follows:
How-To-Repeat: Probably doesn't occur in practice, since VFS_VGET() would not normally
return such an error.