Description
The get_bitmap_file function in drivers/md/md.c in the Linux kernel before 4.1.6 does not initialize a certain bitmap data structure, which allows local users to obtain sensitive information from kernel memory via a GET_BITMAP_FILE ioctl call.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 4.1.3-1 | — |
| Debian 13 | linux | 4.1.3-1 | — |
| Debian 12 | linux | 4.1.3-1 | — |
| Debian 8 | linux | 3.16.7-ckt11-1+deb8u3 | DSA-3329-1 |
| Debian 7 | linux | 3.2.68-1+deb7u3 | DSA-3329-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | linux-2.6 | 2.6.32-48squeeze14 | DLA-310-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-riscv +6 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +4 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +3 | No fix yet | — |
| Ubuntu 14.04 LTS | linux | 3.13.0-65.105 | USN-2748-1 |
| Ubuntu 14.04 LTS | linux-lts-utopic | 3.16.0-51.69~14.04.1 | USN-2777-1 |
| Ubuntu 14.04 LTS | linux-lts-vivid | 3.19.0-30.33~14.04.1 | USN-2751-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | kernel-ec2 +4 | 3.12.48-52.27.1 | SUSE-SU-2015:1727-1 |
| SLES 12 | kernel-xen +1 | 3.12.48-52.27.2 | SUSE-SU-2015:1727-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 | kernel-syms +2 | 3.12.48-52.27.1 | SUSE-SU-2015:1727-1 |
| SLES for SAP 12 | kernel-xen | 3.12.48-52.27.2 | SUSE-SU-2015:1727-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-45.1 | SUSE-SU-2015:2167-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_8 | 1-2.6 | SUSE-SU-2015:1727-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-98.1.1.el6uek | 0.4.5-2.el6 | ELSA-2015-3066 |
| Oracle Linux 7 | dtrace-modules-3.8.13-98.1.1.el7uek | 0.4.5-3.el7 | ELSA-2015-3066 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-98.1.1.el7uek | ELSA-2015-3066 |
Advisories 8
- USN-2748-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-310-1 linux-2.6 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3329-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2751-1 linux-lts-vivid vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-2777-1 linux-lts-utopic vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2015:1727-1 Security update for kernel-source SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:2167-1 Security update for kernel-source-rt SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2015-3066 Low: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 6, 2015
References
- USN-2748-1 vendor-advisory
- USN-2751-1 vendor-advisory
- USN-2731-1 vendor-advisory
- https://github.com/torvalds/linux/commit/b6878d9e03043695dbf3fa1caa6dfc09db225b16
- SUSE-SU-2015:1727 vendor-advisory
- [oss-security] 20150728 CVE request: Linux kernel - information leak in md driver mailing-list
- 76066 vdb-entry
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- USN-2752-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1249011
- DSA-3329 vendor-advisory
- USN-2732-1 vendor-advisory
- USN-2749-1 vendor-advisory
- FEDORA-2015-12908 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.6
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b6878d9e03043695dbf3fa1caa6dfc09db225b16
- FEDORA-2015-13396 vendor-advisory
- FEDORA-2015-13391 vendor-advisory
- 1033211 vdb-entry
- USN-2777-1 vendor-advisory
- FEDORA-2015-12917 vendor-advisory