CVE-2015-8845

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.

Published: 2016-04-27 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-8845 is rated Low Risk (26.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.06%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-8845

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.18% 0.06% -0.12%
2 2025-03-29 0.06% 0.18% +0.12%
3 2025-03-19 — 0.06% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-8845

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.0 MEDIUM
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
4.9 2.0 MEDIUM
AV:L/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 6.9 [email protected]

Weakness enumeration for CVE-2015-8845

OS Trackers for CVE-2015-8845

vendor priority summary link
debian not yet assigned CVE-2015-8845 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-8845
redhat medium — https://access.redhat.com/security/cve/CVE-2015-8845
suse medium CVE-2015-8845 severity moderate: SUSE including 73 source package names (kernel-3.10.0-514.el7, kernel-abi-whitelists-3.10.0-514.el7, …), 376 product×package rows across 75 product lines (HPE Helion OpenStack 8, SLES for SAP Applications 11 SP2, … (75 product lines)): Known Not Affected 278, Fixed 98. https://www.suse.com/security/cve/CVE-2015-8845/
ubuntu medium CVE-2015-8845 medium priority: Ubuntu including 27 source packages (linux, linux-armadaxp, …), 185 status rows across 7 suites (precise, trusty, upstream, wily, xenial, yakkety, zesty): DNE 118, released 34, not-affected 26, ignored 7. https://ubuntu.com/security/CVE-2015-8845

Affected software / configurations for CVE-2015-8845

Vendor Product Version Raw CPE
linux linux_kernel <= 4.4 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
suse suse_linux_enterprise_live_patching 12.0 cpe:2.3:a:suse:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:*
suse suse_linux_enterprise_module_for_public_cloud 12.0 cpe:2.3:a:suse:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:*
suse suse_linux_enterprise_real_time_extension 12 cpe:2.3:a:suse:suse_linux_enterprise_real_time_extension:12:sp1:*:*:*:*:*:*
suse suse_linux_enterprise_software_development_kit 12.0 cpe:2.3:a:suse:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*
suse suse_linux_enterprise_workstation_extension 12.0 cpe:2.3:a:suse:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:*
novell suse_linux_enterprise_desktop 12.0 cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*
novell suse_linux_enterprise_server 12.0 cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*

References for CVE-2015-8845

URL Tags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7f821fc9c77a9b01fe7b1d6e72717b33d8d64142 Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html Third Party Advisory
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 Issue Tracking
https://github.com/torvalds/linux/commit/7f821fc9c77a9b01fe7b1d6e72717b33d8d64142 Patch Vendor Advisory
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