Description
The online_pages function in mm/memory_hotplug.c in the Linux kernel before 3.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact in opportunistic circumstances by using memory that was hot-added by an administrator.
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 | 3.2.41-1 | — |
| Debian 13 | linux | 3.2.41-1 | — |
| Debian 12 | linux | 3.2.41-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +15 | 2.6.32-279.19.1.el6 | RHSA-2012:1580 |
Advisories 1
- RHSA-2012:1580 Red Hat Security Advisory: kernel security, bug fix and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
References
- http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2
- USN-1679-1 vendor-advisory
- RHSA-2012:1580 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/
- SUSE-SU-2012:1679 vendor-advisory
- USN-1673-1 vendor-advisory
- https://github.com/torvalds/linux/commit/08dff7b7d629807dbb1f398c68dd9cd58dd657a1
- [oss-security] 20121113 Re: CVE request -- Linux kernel: mm/hotplug: failure in propagating hot-added memory to other nodes mailing-list
- USN-1678-1 vendor-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=08dff7b7d629807dbb1f398c68dd9cd58dd657a1
- 56527 vdb-entry
- USN-1671-1 vendor-advisory
- openSUSE-SU-2013:0925 vendor-advisory
- USN-1677-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=875374