Public bug reported:
Last night I installed the update qemu-kvm-1.2.0+noroms-0ubuntu2.12.10.3
Afterwards, I discovered that I could no longer use FUSE, and from
comparing time stamps, discovered that the permissions on my /dev/fuse
had been changed to:
crw------T 1 root root 10, 229 Mar 8 07:48 /dev/fuse
at precisely the time that this update was running its postinst script.
(/dev/fuse should have group fuse, not root, and group rw access.) The
culprit appears to be udevadm:
udevadm trigger --subsystem-match=misc --action=change
This may be related to bug #1103022.
The full list of devices which had their permissions changed then is:
crw------- 1 root root 10, 58 Mar 8 07:48 alarm
crw------- 1 root root 10, 59 Mar 8 07:48 ashmem
crw------- 1 root root 10, 60 Mar 8 07:48 binder
crw------T 1 root root 10, 234 Mar 8 07:48 btrfs-control
crw------- 1 root root 10, 57 Mar 8 07:48 cpu_dma_latency
crw------- 1 root root 10, 61 Mar 8 07:48 ecryptfs
crw------T 1 root root 10, 229 Mar 8 07:48 fuse
crw------- 1 root root 10, 228 Mar 8 07:48 hpet
crw-rw----+ 1 root kvm 10, 232 Mar 8 07:48 kvm
crw------- 1 root root 10, 237 Mar 8 07:48 loop-control
crw------- 1 root root 10, 227 Mar 8 07:48 mcelog
crw------- 1 root root 10, 54 Mar 8 07:48 mei
crw------- 1 root root 10, 56 Mar 8 07:48 network_latency
crw------- 1 root root 10, 55 Mar 8 07:48 network_throughput
crw------- 1 root root 10, 1 Mar 8 07:48 psaux
crw-rw-r--+ 1 root root 10, 62 Mar 8 07:48 rfkill
crw------- 1 root root 10, 231 Mar 8 07:48 snapshot
crw-r----- 1 root root 10, 223 Mar 8 07:48 uinput
crw------- 1 root root 10, 53 Mar 8 07:48 vboxdrv
crw------- 1 root root 10, 52 Mar 8 07:48 vboxnetctl
crw------- 1 root root 10, 63 Mar 8 07:48 vga_arbiter
I can't see any other device that has incorrect permissions now, but I
can't tell for all of the above what the correct permissions are.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: udev 175-0ubuntu13
ProcVersionSignature: Ubuntu 3.5.0-25.39-generic 3.5.7.4
Uname: Linux 3.5.0-25-generic x86_64
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
CustomUdevRuleFiles: 10-vboxdrv.rules 99-lexscan.rules
Date: Fri Mar 8 18:43:14 2013
InstallationDate: Installed on 2011-05-24 (653 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: TranquilPC IXL
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-25-generic
root=UUID=b14299ce-70d0-4b10-ab62-aff152625f36 ro quiet splash vt.handoff=7
SourcePackage: udev
UpgradeStatus: Upgraded to quantal on 2012-10-19 (139 days ago)
dmi.bios.date: 01/14/2011
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BLH6710H.86A.0098.2011.0114.1739
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DH67CF
dmi.board.vendor: Intel Corporation
dmi.board.version: AAG10215-203
dmi.chassis.type: 3
dmi.chassis.vendor: TranquilPC
dmi.modalias:
dmi:bvnIntelCorp.:bvrBLH6710H.86A.0098.2011.0114.1739:bd01/14/2011:svnTranquilPC:pnIXL:pvr:rvnIntelCorporation:rnDH67CF:rvrAAG10215-203:cvnTranquilPC:ct3:cvr:
dmi.product.name: IXL
dmi.sys.vendor: TranquilPC
** Affects: udev (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug quantal
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https://bugs.launchpad.net/bugs/1152718
Title:
udevadm seems to set incorrect permissions for /dev/fuse
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