CVE-2019-3892

kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping

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Severity

Unknown

Red Hat Product Security

3.3

CVSS 3.0

Review impact separately from score.

Published · April 4, 2019

Updated · June 28, 2026

Description

A race condition was found between mmget_not_zero()/get_task_mm() when core dumping tasks. A local attacker is able to exploit race condition where locking of semaphore would allow an attacker to leak kernel memory to userspace.

Statement

This flaw was found to be a duplicate of CVE-2019-11599. Please see https://access.redhat.com/security/cve/CVE-2019-11599 for information about affected products and security errata.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 3.3
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CWE-667 · Improper Locking