CVE-2019-19318

kernel: use-after-free in rwsem_down_write_slowpath in kernel/locking/rwsem.c

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Severity

Moderate

Red Hat Product Security

4.4

CVSS 3.1

Review impact separately from score.

Published · November 28, 2019

Updated · June 28, 2026

Description

A use-after-free flaw was found in rwsem_can_spin_on_owner in the kernel/locking/rwsem.c function in the Linux kernel’s synchronization mechanism. This flaw allows a local attacker with root privileges to cause a denial of service. This vulnerability could also lead to a kernel information leak issue.

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 3.1 · 4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-416 · Use After Free