CVE-2014-4171
Published: 23 June 2014
mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, which allows local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call.
From the Ubuntu security team
Sasha Levin reported an issue with the Linux kernel's shared memory subsystem when used with range notifications and hole punching. A local user could exploit this flaw to cause a denial of service.
Priority
Medium
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.2.0-16.19)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Released
(3.13.0-35.62)
|
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by f00cdc6df7d7cfcabb5b740911e6788cb0802bdb Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by 8e205f779d1443a94b5ae81aa359cb535dd3021e Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by b1a366500bd537b50c3aad26dc7df083ec03a448 |
||
|
linux-2.6 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-armadaxp Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-aws Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.4.0-1001.10)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.4.0-1002.2)
|
|
|
linux-ec2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(abandoned)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [was needed now end-of-life])
|
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.4.0-1003.3)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(abandoned)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [was needed now end-of-life])
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
Patches: DNE |
||
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-lts-raring Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was not-affected [3.16.0-25.33~14.04.2])
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was not-affected [3.19.0-18.18~14.04.1])
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was not-affected [4.2.0-18.22~14.04.1])
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Not vulnerable
(4.4.0-13.29~14.04.1)
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [abandoned])
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Ignored
(abandoned)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [was needed now end-of-life])
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
(trusty was ignored [was needed now end-of-life])
|
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.2.0-1013.19)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Not vulnerable
(4.4.0-1012.12)
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.16~rc7)
|
| Ubuntu 16.04 LTS (Xenial Xerus) |
Does not exist
|
|
| Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
Notes
| Author | Note |
|---|---|
| jdstrand | android kernels (goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 13.10 preview kernels android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.04 preview kernels |
| henrix | discussion on stable kernels backport is still on-going, as the fix is likely to be different. |
| apw | the break-fix is likely wrong now as they are reverting this commit in favour of some other combo as well: break-fix: - f00cdc6df7d7cfcabb5b740911e6788cb0802bdb |
| jdstrand | linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4171
- http://ozlabs.org/~akpm/mmots/broken-out/shmem-fix-faulting-into-a-hole-while-its-punched.patch
- https://lkml.org/lkml/2014/7/2/518
- https://usn.ubuntu.com/usn/usn-2334-1
- https://usn.ubuntu.com/usn/usn-2335-1
- https://usn.ubuntu.com/usn/usn-2336-1
- https://usn.ubuntu.com/usn/usn-2337-1
- NVD
- Launchpad
- Debian