Medium severity · published Nov 30, 2019
CVE-2019-19462
relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result
5.5
CVSS
0.5%
EPSS
No
On KEV
Description
relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
through 5.4.1 · source: NVD
AI
Active IQ Unified Manager · Netapp
9.5 and later · source: NVD
DL
Debian Linux · Debian
8.0; 9.0; 10.0 · source: NVD
HC
Hci Compute Node · Netapp
All versions, or not specified · source: NVD
HM
Hci Management Node · Netapp
All versions, or not specified · source: NVD
HS
Hci Storage Node · Netapp
All versions, or not specified · source: NVD
LE
Leap · Opensuse
15.1; 15.2 · source: NVD
SO
Solidfire · Netapp
All versions, or not specified · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 18.04; 20.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-19462
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-19462
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
Mailing List
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
lore.kernel.org
https://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210129-0004/
Patch
https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8
More from Kernel
9.8
CVE-2025-39682
tls: fix handling of zero-length records on the rx_list
8.8
CVE-2026-53266
netfilter: bridge: make ebt_snat ARP rewrite writable
8.8
CVE-2013-6282
Linux Kernel Improper Input Validation Vulnerability
8.4
CVE-2022-0185
Linux Kernel Heap-Based Buffer Overflow Vulnerability
8.4
CVE-2013-2094
Linux Kernel Privilege Escalation Vulnerability