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

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

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

Updated: 2018-05-09T09:57:01

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


Link: CVE-2018-1091

JSON object: View

cve-icon NVD Information

Status : Modified

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

Modified: 2018-05-10T01:29:05.627


Link: CVE-2018-1091

JSON object: View

cve-icon Redhat Information

No data.