Description
The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.17.2 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to cause a denial of service (host OS page unpinning) or possibly have unspecified other impact by leveraging guest OS privileges. NOTE: this vulnerability exists because of an incorrect fix for CVE-2014-3601.
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 | 3.16.7-ckt2-1 | — |
| Debian 13 | linux | 3.16.7-ckt2-1 | — |
| Debian 12 | linux | 3.16.7-ckt2-1 | — |
| Debian 7 | linux | 3.2.63-2+deb7u2 | DSA-3093-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-41.70 | USN-2446-1 |
| Ubuntu 14.04 LTS | linux-lts-utopic | 3.16.0-26.35~14.04.1 | USN-2447-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +16 | 2.6.32-504.12.2.el6 | RHSA-2015:0674 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-55.1.8.el6uek | 0.4.3-4.el6 | ELSA-2015-3013 |
| Oracle Linux 7 | dtrace-modules-3.8.13-55.1.8.el7uek | 0.4.3-4.el7 | ELSA-2015-3013 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-55.1.8.el7uek | ELSA-2015-3013 |
Advisories 5
- RHSA-2015:0674 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-2446-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3093-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2447-1 linux-lts-utopic vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- ELSA-2015-3013 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 13, 2015
References
- 70749 vdb-entry
- SUSE-SU-2015:0736 vendor-advisory
- [linux-kernel] 20141024 [PATCH 13/14] kvm: fix excessive pages un-pinning in kvm_iommu_map error path. mailing-list
- DSA-3093 vendor-advisory
- 62326 third-party-advisory
- SUSE-SU-2015:0481 vendor-advisory
- openSUSE-SU-2015:0566 vendor-advisory
- [oss-security] 20141024 CVE-2014-8369 - Linux kernel iommu.c excessive unpinning mailing-list
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3d32e4dbe71374a6780eaf51d719d76f9a9bf22f
- https://bugzilla.redhat.com/show_bug.cgi?id=1156518
- 62336 third-party-advisory
- 70747 vdb-entry
- https://github.com/torvalds/linux/commit/3d32e4dbe71374a6780eaf51d719d76f9a9bf22f
- RHSA-2015:0674 vendor-advisory