CVE-2019-19318

PoC —

CVSS 3.1

4.4 medium

EPSS

<1%p49

Published

Nov 28, 2019 (Nov 28, 2019)

Modified

Jun 17, 2026

Description

In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags returns an already freed pointer,

Vendors: linux opensuse canonical debian netapp
Products: linux kernel, leap, ubuntu linux, debian linux, active iq unified manager, data availability services, hci management node, solidfire, steelstore cloud integrated storage, aff a700s firmware, fas8300 firmware, fas8700 firmware
Weakness: CWE-416
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.6%)

In the news0 stories

No ingested article mentions this CVE yet.