CVE-2014-7822

Published: 16 March 2015

The implementation of certain splice_write file operations in the Linux kernel before 3.16 does not enforce a restriction on the maximum size of a single file, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted splice system call, as demonstrated by use of a file descriptor associated with an ext4 filesystem.

From the Ubuntu security team

The Linux kernel's splice system call did not correctly validate its parameters. A local, unprivileged user could exploit this flaw to cause a denial of service (system crash).

Priority

Medium

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 8d0207652cbe27d1f962050737848e5ad4671958
linux-2.6
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-ec2
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-mvl-dove
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)
linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (3.16~rc1)

Notes

AuthorNote
jdstrand
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.04 preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support

References

Bugs