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CVE-2026-23019

22
FAUCET Score

CVE-2026-23019 is a NULL pointer dereference vulnerability in the Marvell Prestera network driver within the Linux kernel. Specifically, the prestera_devlink_alloc() function fails to check for a NULL return from devlink_alloc(), leading to a system crash if memory allocation fails. While no CVSS score is available, the FAUCET Risk Score is low at 17/100, suggesting a limited impact. There is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.10.1, < 5.15.198CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.161CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.6.121CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.7, < 6.12.66CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.13, < 6.18.6CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.11%
Probability of exploitation in next 30 days
EPSS Percentile
1.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0011 is in the 11th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (57)

ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-6.17 (noble)Fixed in: 6.17.0-1021.24~24.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime-6.17 (noble)Fixed in: 6.17.0-1018.20~24.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-oem-6.17 (noble)Fixed in: 6.17.0-1030.30
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-fde-6.17 (noble)Fixed in: 6.17.0-1018.18~24.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-6.17 (noble)Fixed in: 6.17.0-1021.21~24.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-fips (jammy)Fixed in: 5.15.0-173.183+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-fips (jammy)Fixed in: 5.15.0-1103.112+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm-6.8 (jammy)Fixed in: 6.8.0-1055.56~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency-hwe-6.8 (jammy)Fixed in: 6.8.0-117.117.1~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime-6.8 (jammy)Fixed in: 6.8.1-1051.52~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux (noble)Fixed in: 6.8.0-117.117
ubuntupatch availablevia ubuntu_usn
Product: linux-aws (noble)Fixed in: 6.8.0-1055.58
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-fips (noble)Fixed in: 6.8.0-1055.58+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp (noble)Fixed in: 6.8.0-1058.61
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-fips (noble)Fixed in: 6.8.0-1058.61+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-gke (noble)Fixed in: 6.8.0-1054.60
ubuntupatch availablevia ubuntu_usn
Product: linux-gkeop (noble)Fixed in: 6.8.0-1041.44
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm (noble)Fixed in: 6.8.0-1055.56
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency (noble)Fixed in: 6.8.0-117.117.1
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi (noble)Fixed in: 6.8.0-1056.60
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi-realtime (noble)Fixed in: 6.8.0-2045.46
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime (noble)Fixed in: 6.8.1-1051.52
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia (noble)Fixed in: 6.8.0-1054.57
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-lowlatency (noble)Fixed in: 6.8.0-1054.57.1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-6.8 (jammy)Fixed in: 6.8.0-1054.57~22.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra (noble)Fixed in: 6.8.0-1024.24
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-fips (jammy)Fixed in: 5.15.0-1103.110+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm-5.15 (focal)Fixed in: 5.15.0-1097.100~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra-5.15 (focal)Fixed in: 5.15.0-1055.55~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux (jammy)Fixed in: 5.15.0-173.183
ubuntupatch availablevia ubuntu_usn
Product: linux-aws (jammy)Fixed in: 5.15.0-1103.110
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp (jammy)Fixed in: 5.15.0-1103.112
ubuntupatch availablevia ubuntu_usn
Product: linux-gkeop (jammy)Fixed in: 5.15.0-1086.94
ubuntupatch availablevia ubuntu_usn
Product: linux-ibm (jammy)Fixed in: 5.15.0-1097.100
ubuntupatch availablevia ubuntu_usn
Product: linux-intel-iotg (jammy)Fixed in: 5.15.0-1098.104
ubuntupatch availablevia ubuntu_usn
Product: linux-kvm (jammy)Fixed in: 5.15.0-1095.100
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency (jammy)Fixed in: 5.15.0-173.183
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia (jammy)Fixed in: 5.15.0-1098.99
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra (jammy)Fixed in: 5.15.0-1055.55
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle (jammy)Fixed in: 5.15.0-1100.106
ubuntupatch availablevia ubuntu_usn
Product: linux-xilinx-zynqmp (jammy)Fixed in: 5.15.0-1067.71
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (noble)Fixed in: 6.8.0-1056.62
ubuntupatch availablevia ubuntu_usn
Product: linux-realtime (jammy)Fixed in: 5.15.0-1102.111
ubuntupatch availablevia ubuntu_usn
Product: linux-aws-5.15 (focal)Fixed in: 5.15.0-1103.110~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-gcp-5.15 (focal)Fixed in: 5.15.0-1103.112~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-hwe-5.15 (focal)Fixed in: 5.15.0-173.183~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-intel-iotg-5.15 (focal)Fixed in: 5.15.0-1098.104~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-lowlatency-hwe-5.15 (focal)Fixed in: 5.15.0-173.183~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-oracle-5.15 (focal)Fixed in: 5.15.0-1100.106~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-gke (jammy)Fixed in: 5.15.0-1099.105
ubuntupatch availablevia ubuntu_usn
Product: linux-nvidia-tegra-igx (jammy)Fixed in: 5.15.0-1044.44
ubuntupatch availablevia ubuntu_usn
Product: linux-intel-iot-realtime (jammy)Fixed in: 5.15.0-1094.96
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-5.15 (focal)Fixed in: 5.15.0-1110.119~20.04.1
ubuntupatch availablevia ubuntu_usn
Product: linux-raspi (jammy)Fixed in: 5.15.0-1097.100
ubuntupatch availablevia ubuntu_usn
Product: linux-azure-fips (jammy)Fixed in: 5.15.0-1109.118+fips1
ubuntupatch availablevia ubuntu_usn
Product: linux-azure (jammy)Fixed in: 5.15.0-1109.118
ubuntupatch availablevia ubuntu_usn
Product: linux-xilinx (noble)Fixed in: 6.8.0-1032.33

Vendor Advisories (21)

ubuntuUSN-8605-1

Linux kernel (Azure CVM) vulnerabilities

Jul 24, 2026
ubuntuUSN-8604-1

Linux kernel (Azure) vulnerabilities

Jul 24, 2026
ubuntuUSN-8594-1

Linux kernel (OEM) vulnerabilities

Jul 23, 2026
ubuntuUSN-8570-1

Linux kernel vulnerabilities

Jul 20, 2026
ubuntuUSN-8499-1

Linux kernel (Xilinx) vulnerabilities

Jul 2, 2026
ubuntuUSN-8278-2

Linux kernel (Azure) vulnerabilities

May 26, 2026
ubuntuUSN-8289-2

Linux kernel (NVIDIA) vulnerabilities

May 25, 2026
ubuntuUSN-8296-2

Linux kernel (NVIDIA Tegra) vulnerabilities

May 25, 2026
ubuntuUSN-8289-1

Linux kernel (NVIDIA) vulnerabilities

May 20, 2026
ubuntuUSN-8278-1

Linux kernel vulnerabilities

May 19, 2026
ubuntuUSN-8243-1

Linux kernel (Azure) vulnerabilities

May 7, 2026
ubuntuUSN-8163-2

Linux kernel (Azure) vulnerabilities

Apr 13, 2026
ubuntuUSN-8163-1

Linux kernel (Azure FIPS) vulnerabilities

Apr 9, 2026
ubuntuUSN-8141-1

Linux kernel (Raspberry Pi) vulnerabilities

Apr 1, 2026
ubuntuUSN-8096-5

Linux kernel (NVIDIA Tegra IGX) vulnerabilities

Mar 23, 2026
ubuntuUSN-8116-1

Linux kernel (Intel IoTG Real-time) vulnerabilities

Mar 23, 2026
ubuntuUSN-8096-4

Linux kernel (Real-time) vulnerabilities

Mar 17, 2026
ubuntuUSN-8096-3

Linux kernel vulnerabilities

Mar 17, 2026
ubuntuUSN-8096-2

Linux kernel (FIPS) vulnerabilities

Mar 16, 2026
ubuntuUSN-8096-1

Linux kernel vulnerabilities

Mar 16, 2026
redhatCVE-2026-23019

kernel: net: marvell: prestera: fix NULL dereference on devlink_alloc() failure

Jan 31, 2026

References

cert-portal.siemens.com / productcert/html/ssa-019113.html
git.kernel.org / stable/c/325aea74be7e192b5c947c782da23b0d19a5fda2
Patch
git.kernel.org / stable/c/326a4b7e61d01db3507f71c8bb5e85362f607064
Patch
git.kernel.org / stable/c/3950054c9512add0cc79ab7e72b6d2f9f675e25b
Patch
git.kernel.org / stable/c/8a4333b2818f0d853b43e139936c20659366e4a0
Patch
git.kernel.org / stable/c/94e070cd50790317fba7787ae6006934b7edcb6f
Patch
git.kernel.org / stable/c/a428e0da1248c353557970848994f35fd3f005e2
Patch