PR/60645 CVS commit: [netbsd-11] src/sys/nfs

["Martin Husemann" <martin%netbsd.org@localhost>]

The following reply was made to PR kern/60645; it has been noted by GNATS.

From: "Martin Husemann" <martin%netbsd.org@localhost>
To: gnats-bugs%gnats.NetBSD.org@localhost
Cc: 
Subject: PR/60645 CVS commit: [netbsd-11] src/sys/nfs
Date: Sun, 25 Oct 2026 10:48:17 +0000

 Module Name:	src
 Committed By:	martin
 Date:		Sun Oct 25 10:48:17 UTC 2026
 
 Modified Files:
 	src/sys/nfs [netbsd-11]: nfs_syscalls.c
 
 Log Message:
 Pull up following revision(s) (requested by riastradh in ticket #552):
 
 	sys/nfs/nfs_syscalls.c: revision 1.166
 	sys/nfs/nfs_syscalls.c: revision 1.167
 	sys/nfs/nfs_var.h: revision 1.98
 	sys/nfs/nfs_syscalls.c: revision 1.168
 	sys/nfs/nfs_var.h: revision 1.99
 	sys/nfs/nfs_syscalls.c: revision 1.169
 	sys/nfs/nfs_export.c: revision 1.64
 	sys/nfs/nfs_export.c: revision 1.65
 	sys/nfs/nfs_syscalls.c: revision 1.170
 
 nfs_syscalls.c: Sort includes.
 
 No functional change intended.
 
 Preparation for:
 PR kern/60645: nfssvc(2): arithmetic overflow in input array sizing
 
 nfs: New sysctl node vfs.nfsd.maxexportspermount.
 
 Limits the number of different ways a single mount point can be
 exported.  Default is limited to 256; can be expanded by sysctl up to
 anything that won't overflow kva.
 
 XXX Should prevent increasing it at securelevel>0.
 
 PR kern/60645: nfssvc(2): arithmetic overflow in input array sizing
 
 nfs: Work around missing VM_MIN/MAX_KERNEL_ADDRESS on amd64 rump.
 
 PR kern/60645: nfssvc(2): arithmetic overflow in input array sizing
 
 nfs: Work around missing VM_MIN/MAX_KERNEL_ADDRESS in rump.
 
 Let's get the builds unbroken before making this perfect.
 
 PR kern/60645: nfssvc(2): arithmetic overflow in input array sizing
 
 nfs: On reflection, just clamp the export_args buffer to 64 KiB.
 Keep it simple, just make sure userland doesn't trigger contiguous
 kva allocation of more than 64 KiB.
 
 PR kern/60645: nfssvc(2): arithmetic overflow in input array sizing
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.164.2.1 -r1.164.2.2 src/sys/nfs/nfs_syscalls.c
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.