CVE-2015-4178

Published: 02 May 2016

The fs_pin implementation in the Linux kernel before 4.0.5 does not ensure the internal consistency of a certain list data structure, which allows local users to cause a denial of service (system crash) by leveraging user-namespace root access for an MNT_DETACH umount2 system call, related to fs/fs_pin.c and include/linux/fs_pin.h.

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
Patches:
Introduced by ce07d891a0891d3c0d0c2d73d577490486b809e1
Fixed by 820f9f147dcce2602eefd9b575bbbd9ea14f0953
linux-2.6
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.1~rc1)

Notes

AuthorNote
jdstrand
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.10 and earlier preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support

References

Bugs