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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2018-03-27T21:00:00

Updated: 2024-08-05T03:51:48.251Z

Reserved: 2017-12-04T00:00:00

Link: CVE-2018-1091

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-03-27T21:29:00.720

Modified: 2024-11-21T03:59:09.780

Link: CVE-2018-1091

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-09-13T00:00:00Z

Links: CVE-2018-1091 - Bugzilla