This bug was nominated against a series that is no longer supported, ie
artful. The bug task representing the artful nomination is being closed
as Won't Fix.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu Artful)
Status: Fix Committed => Won't Fix
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https://bugs.launchpad.net/bugs/1729337
Title:
CIFS errors on 4.4.0-98, but not on 4.4.0-97 with same config
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Trusty:
In Progress
Status in linux source package in Xenial:
Fix Released
Status in linux source package in Zesty:
In Progress
Status in linux source package in Artful:
Won't Fix
Bug description:
== SRU Justification ==
The bug reporter stated they have a cluster of servers that applied Xenial
updates
and then were unable to mount CIFS shares after upgrading to 4.4.0-98. The
same machines on 4.4.0-97 do not hit the regression. It was found that the
regression is fixed by mainline commit:
4587eee04e2a ("SMB3: Validate negotiate request must always be signed").
This fix is required in all Ubuntu supported releases. Commit 4587eee04e2a
landed in mailine as of 4.14-rc7. It was also cc'd to upstream stable,
but it has not landed in any stable releases yet, which is the reason for
this SRU.
== Fix ==
commit 4587eee04e2ac7ac3ac9fa2bc164fb6e548f99cd
Author: Steve French <smfre...@gmail.com>
Date: Wed Oct 25 15:58:31 2017 -0500
SMB3: Validate negotiate request must always be signed
== Regression Potential ==
This patch is to fix a regression. It was also cc'd to upstream stable, so
it received addition review upstream.
We have a cluster of servers that applied a security update overnight
and were unable to mount CIFS shares after upgrading to 4.4.0-98. The
same machines on 4.4.0-97 were fine the night before, and are fine
after downgrading. The only error message CIFS would report, even on
verbose, was:
[ 257.089876] CIFS VFS: validate protocol negotiate failed: -11
[ 257.089964] CIFS VFS: cifs_mount failed w/return code = -5
Rebooting did not help. Nor did attempting to mount the share
manually using mount -t cifs.
Here's the offending line from our /etc/fstab (with hostnames
sanitized):
//server/share /mnt/share cifs
rw,user,credentials=/etc/samba/credentials.share,uid=33,gid=33,file_mode=0770,dir_mode=0770
,exec,soft,noserverino,vers=3.0 0 0
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-98-generic 4.4.0-98.121
ProcVersionSignature: Ubuntu 4.4.0-98.121-generic 4.4.90
Uname: Linux 4.4.0-98-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Nov 1 07:56 seq
crw-rw---- 1 root audio 116, 33 Nov 1 07:56 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
Date: Wed Nov 1 08:49:47 2017
HibernationDevice: RESUME=/dev/mapper/ubuntu--template--vg-swap_1
InstallationDate: Installed on 2016-12-16 (319 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb: Error: command ['lsusb'] failed with exit code 1:
MachineType: VMware, Inc. VMware Virtual Platform
PciMultimedia:
ProcFB: 0 svgadrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-98-generic
root=/dev/mapper/ubuntu--template--vg-root ro
RelatedPackageVersions:
linux-restricted-modules-4.4.0-98-generic N/A
linux-backports-modules-4.4.0-98-generic N/A
linux-firmware 1.157.13
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/21/2015
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.name: 440BX Desktop Reference Platform
dmi.board.vendor: Intel Corporation
dmi.board.version: None
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd09/21/2015:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
dmi.product.name: VMware Virtual Platform
dmi.product.version: None
dmi.sys.vendor: VMware, Inc.
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