From mike@marker.cs.utah.edu  Wed Feb  7 22:33:29 1996
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Date: Wed, 7 Feb 1996 23:33:28 -0700
From: Mike Hibler <mike@marker.cs.utah.edu>
Reply-To: mike@marker.cs.utah.edu
To: FreeBSD-gnats-submit@freebsd.org
Subject: M_NAMEI malloc leak in the kernel
X-Send-Pr-Version: 3.2

>Number:         1001
>Category:       kern
>Synopsis:       M_NAMEI malloc leak in the kernel
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:
>Keywords:
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Feb  7 22:40:01 PST 1996
>Closed-Date:    Tue May 20 01:05:54 PDT 1997
>Last-Modified:  Tue May 20 01:06:57 PDT 1997
>Originator:     Mike Hibler
>Release:        FreeBSD 2.1.0-950726-SNAP i386
>Organization:
Univ. of Utah
>Environment:

	N/A

>Description:

	nfs_vnops.c:nfs_link leaks a M_NAMEI buffer if it fails with EXDEV.
	This is due to the commented out VOP_ABORTOP
	(I have no idea why this is commented out, it just always has been).

>How-To-Repeat:

	vmstat -m	# note the memory use of namei
	cd <some writable nfs-mounted filesystem>
	ln /kernel foo	# should fail with cross-dev link
	vmstat -m	# see namei grow, grow namei grow


>Fix:
	
	Stick in "FREE(cnp->cn_pnbuf, M_NAMEI)"



>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->bde 
Responsible-Changed-By: pst 
Responsible-Changed-When: Thu Feb 8 12:09:53 PST 1996 
Responsible-Changed-Why:  
Responsible-Changed-From-To: bde->freebsd-bugs 
Responsible-Changed-By: bde 
Responsible-Changed-When: Tue Dec 17 04:24:12 PST 1996 
Responsible-Changed-Why:  
Not exactly my area. 
State-Changed-From-To: open->closed 
State-Changed-By: dfr 
State-Changed-When: Tue May 20 01:05:54 PDT 1997 
State-Changed-Why:  
Fixed in rev 1.51 of sys/nfs/nfs_vnops.c. 
>Unformatted:
