CVE-2015-8845
Description
The tm_reclaim_thread function in arch/powerpc/kernel/process.c in the Linux kernel before 4.4.1 on powerpc platforms does not ensure that TM suspend mode exists before proceeding with a tm_reclaim call, which allows local users to cause a denial of service (TM Bad Thing exception and panic) via a crafted application.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.4.2-1 |
| debian | bullseye | fixed | 4.4.2-1 |
| debian | forky | fixed | 4.4.2-1 |
| debian | sid | fixed | 4.4.2-1 |
| debian | trixie | fixed | 4.4.2-1 |
| suse | 12.0 | affected | |
| linux-kernel | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| suse | suse_linux_enterprise_live_patching | 12.0 | |
| suse | suse_linux_enterprise_module_for_public_cloud | 12.0 | |
| suse | suse_linux_enterprise_real_time_extension | 12 | |
| suse | suse_linux_enterprise_software_development_kit | 12.0 | |
| suse | suse_linux_enterprise_workstation_extension | 12.0 | |
References
- https://www.suse.com/security/cve/CVE-2015-8845.html
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7f821fc9c77a9b01fe7b1d6e72717b33d8d64142
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
- http://rhn.redhat.com/errata/RHSA-2016-2574.html
- http://rhn.redhat.com/errata/RHSA-2016-2584.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1
- http://www.openwall.com/lists/oss-security/2016/04/13/1
- http://www.securitytracker.com/id/1035594
- https://bugzilla.redhat.com/show_bug.cgi?id=1326540
- https://github.com/torvalds/linux/commit/7f821fc9c77a9b01fe7b1d6e72717b33d8d64142
- https://security-tracker.debian.org/tracker/CVE-2015-8845
CWEs
CWE-284
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.