TI-2019-13934 Aliases CVE-2019-19318 GHSA-r6gp-mqm3-8pv6

In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an…

LOW 21CWE-416Published 2019-11-27 · Updated 2024-08-05

Key facts

Attack vector: Local
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

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,

Why it matters now

EPSS 0.00645 51st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 22

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel:5.0.21:::::::*	5.0.21	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:5.3.11:::::::*	5.3.11	Vulnerable	Linux
cpe:2.3:o:opensuse:leap:15.1:::::::*	15.1	Vulnerable	openSUSE
cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::	14.04	Vulnerable	Canonical
cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::	16.04	Vulnerable	Canonical
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::	18.04	Vulnerable	Canonical
cpe:2.3:o:debian:debian_linux:9.0:::::::*	9.0	Vulnerable	Debian
cpe:2.3:a:netapp:active_iq_unified_manager::::::vmware_vsphere::*	9.5	Vulnerable	NetApp
cpe:2.3:a:netapp:data_availability_services:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:a:netapp:hci_management_node:-:::::::*	not specified by NVD	Vulnerable	NetApp

cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:* Versions 5.0.21 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:5.3.11:*:*:*:*:*:*:* Versions 5.3.11 Vulnerable ·Linux
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:* Versions 9.5 Vulnerable ·NetApp
cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp

Show 12 more CPE

CPE	Versions	Role	Vendor
cpe:2.3:a:netapp:solidfire:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:o:netapp:aff_a700s_firmware:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:h:netapp:aff_a700s:-:::::::*	not specified by NVD	Running on	NetApp
cpe:2.3:o:netapp:fas8300_firmware:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:h:netapp:fas8300:-:::::::*	not specified by NVD	Running on	NetApp
cpe:2.3:o:netapp:fas8700_firmware:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:h:netapp:fas8700:-:::::::*	not specified by NVD	Running on	NetApp
cpe:2.3:o:netapp:aff_a400_firmware:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:h:netapp:aff_a400:-:::::::*	not specified by NVD	Running on	NetApp
cpe:2.3:o:netapp:h610s_firmware:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:h:netapp:h610s:-:::::::*	not specified by NVD	Running on	NetApp

cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:o:netapp:aff_a700s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:h:netapp:aff_a700s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
cpe:2.3:o:netapp:fas8300_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:h:netapp:fas8300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
cpe:2.3:o:netapp:fas8700_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:h:netapp:fas8700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
cpe:2.3:o:netapp:aff_a400_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:h:netapp:aff_a400:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 5 products

Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise MRG 2

Timeline

2026-10-02 Threatist record created from CVE-2019-19318
2026-10-03 Alias added: GHSA-r6gp-mqm3-8pv6
2026-10-20 EPSS moved to the 50th–90th percentile

References

Exploit 1

https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19318

Advisory 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences