CVE-2015-8839
Published: 2 May 2016
Multiple race conditions in the ext4 filesystem implementation in the Linux kernel before 4.5 allow local users to cause a denial of service (disk corruption) by writing to a page that is associated with a different user's file after unsynchronized hole punching and page-fault handling.
From the Ubuntu Security Team
Multiple race conditions where discovered in the Linux kernel's ext4 file system. A local user could exploit this flaw to cause a denial of service (disk corruption) by writing to a page that is associated with a different users file after unsynchronized hole punching and page-fault handling.
Notes
| Author | Note |
|---|---|
| sbeattie | see oss-sec thread discussion on which commits are a priority to backport |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.10.0-19.21)
|
| bionic |
Not vulnerable
(4.13.0-16.19)
|
|
| cosmic |
Not vulnerable
(4.15.0-20.21)
|
|
| disco |
Not vulnerable
(4.18.0-10.11)
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Ignored
(was needed ESM criteria)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Ignored
(end of life)
|
|
| xenial |
Released
(4.4.0-24.43)
|
|
| yakkety |
Not vulnerable
(4.4.0-23.41)
|
|
| zesty |
Not vulnerable
(4.8.0-22.24)
|
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
|
linux-armadaxp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-aws Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.15.0-1001.1)
|
|
| cosmic |
Not vulnerable
(4.15.0-1007.7)
|
|
| disco |
Not vulnerable
(4.18.0-1002.3)
|
|
| precise |
Does not exist
|
|
| trusty |
Not vulnerable
(4.4.0-1002.2)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.4.0-1001.10)
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.15.0-1030.31~16.04.1)
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.15.0-1002.2)
|
|
| cosmic |
Not vulnerable
(4.15.0-1009.9)
|
|
| disco |
Not vulnerable
(4.18.0-1003.3)
|
|
| trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.11.0-1009.9)
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1002.2)
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.11.0-1009.9)
|
|
|
linux-euclid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.4.0-9019.20)
|
|
| zesty |
Does not exist
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Ignored
(end of life)
|
|
| xenial |
Ignored
(abandoned)
|
|
| yakkety |
Ignored
(end of life)
|
|
| zesty |
Does not exist
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.15.0-1001.1)
|
|
| cosmic |
Not vulnerable
(4.15.0-1006.6)
|
|
| disco |
Not vulnerable
(4.18.0-1002.3)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.10.0-1004.4)
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.18.0-1004.5~18.04.1)
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.4.0-1003.3)
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Ignored
(end of life)
|
|
| xenial |
Ignored
(abandoned)
|
|
| yakkety |
Ignored
(end of life)
|
|
| zesty |
Ignored
(end of life)
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.18.0-13.14~18.04.1)
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(5.0.0-13.14~18.04.2)
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.15.0-1002.2)
|
|
| cosmic |
Not vulnerable
(4.15.0-1008.8)
|
|
| disco |
Not vulnerable
(4.18.0-1003.3)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.4.0-1004.9)
|
|
| zesty |
Does not exist
|
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-lts-raring Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Ignored
(end of life, was ignored)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Ignored
(end of life, was needed)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Ignored
(end of life, was ignored)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Released
(4.4.0-24.43~14.04.1)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Ignored
(end of life)
|
|
| xenial |
Ignored
(abandoned)
|
|
| yakkety |
Ignored
(end of life)
|
|
| zesty |
Does not exist
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored)
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Ignored
(end of life)
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.15.0-1002.3)
|
|
| cosmic |
Not vulnerable
(4.15.0-1004.5)
|
|
| disco |
Not vulnerable
(4.15.0-1021.24)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.13.0-1008.9)
|
|
| zesty |
Does not exist
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1007.9)
|
| cosmic |
Not vulnerable
(4.15.0-1007.9)
|
|
| disco |
Not vulnerable
(4.15.0-1007.9)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| xenial |
Not vulnerable
(4.15.0-1007.9~16.04.1)
|
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.10.0-1004.6)
|
| bionic |
Not vulnerable
(4.13.0-1005.5)
|
|
| cosmic |
Not vulnerable
(4.15.0-1010.11)
|
|
| disco |
Not vulnerable
(4.18.0-1005.7)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Ignored
(end of life)
|
|
| xenial |
Released
(4.4.0-1012.16)
|
|
| yakkety |
Not vulnerable
(4.4.0-1011.14)
|
|
| zesty |
Not vulnerable
(4.8.0-1013.15)
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.4.0-1050.54)
|
| bionic |
Not vulnerable
(4.4.0-1077.82)
|
|
| cosmic |
Does not exist
|
|
| disco |
Not vulnerable
(5.0.0-1010.10)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Released
(4.4.0-1015.18)
|
|
| yakkety |
Not vulnerable
(4.4.0-1014.16)
|
|
| zesty |
Not vulnerable
(4.4.0-1029.32)
|
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.5~rc1)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.1 |
| Attack vector | Local |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
- https://git.kernel.org/linus/ea3d7209ca01da209cda6f0dea8be9cc4b7a933b (v4.5-rc1)
- https://git.kernel.org/linus/17048e8a083fec7ad841d88ef0812707fbc7e39f (v4.5-rc1)
- https://git.kernel.org/linus/32ebffd3bbb4162da5ff88f9a35dd32d0a28ea70 (v4.5-rc1)
- https://git.kernel.org/linus/011278485ecc3cd2a3954b5d4c73101d919bf1fa (v4.5-rc1)
- https://bugzilla.suse.com/show_bug.cgi?id=972174
- http://seclists.org/oss-sec/2016/q2/1
- http://seclists.org/oss-sec/2016/q2/6
- https://ubuntu.com/security/notices/USN-3005-1
- https://ubuntu.com/security/notices/USN-3006-1
- https://ubuntu.com/security/notices/USN-3007-1
- https://www.cve.org/CVERecord?id=CVE-2015-8839
- NVD
- Launchpad
- Debian