fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of incorrect fpu_fpregs_owner_ctx caching, as demonstrated by mishandling of signal-based non-cooperative preemption in Go 1.14 prereleases on amd64, aka CID-59c4bd853abc.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-12-05T13:21:28

Updated: 2024-08-05T02:25:11.436Z

Reserved: 2019-12-05T00:00:00

Link: CVE-2019-19602

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2019-12-05T14:15:09.257

Modified: 2020-08-24T17:37:01.140

Link: CVE-2019-19602

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-11-26T00:00:00Z

Links: CVE-2019-19602 - Bugzilla