Medium severity5.5NVD Advisory· Published Mar 27, 2018· Updated Jun 17, 2026
CVE-2018-1091
CVE-2018-1091
Description
In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
39- osv-coords38 versionspkg:rpm/suse/kernel-default&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3pkg:rpm/suse/kernel-syms&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/kernel-syms&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_29&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_29&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_29&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_29&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_11&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3
< 4.4.121-92.109.2+ 37 more
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.128-3.11.1
- (no CPE)range: < 4.4.128-3.11.1
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.126-94.22.2
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.126-94.22.2
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.126-94.22.2
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.128-3.11.1
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.126-94.22.1
- (no CPE)range: < 4.4.121-92.109.2
- (no CPE)range: < 4.4.128-3.11.1
- (no CPE)range: < 1-3.5.2
- (no CPE)range: < 1-3.5.2
- (no CPE)range: < 1-3.5.2
- (no CPE)range: < 1-3.5.2
- (no CPE)range: < 1-4.5.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdPatchVendor Advisory
- github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70nvdPatchThird Party Advisory
- marc.infonvdPatchThird Party Advisory
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5nvdPatchVendor Advisory
- openwall.com/lists/oss-security/2018/03/27/4nvdMailing ListThird Party Advisory
- access.redhat.com/security/cve/cve-2018-1091nvdThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- access.redhat.com/errata/RHSA-2018:1318nvd
News mentions
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