Is CVE-2026-43157 in the CISA KEV catalog?

No. CVE-2026-43157 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-43157?

CVE-2026-43157 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2026-43157?

CVE-2026-43157 has an EPSS score of 0.13% (3th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-43157?

Upgrade linux on debian 12 to 6.1.170-1 or later. Fixes are available for 121 affected products.

CVE & CISA-KEV Catalog

CVE-2026-43157

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: CGX: fix bitmap leaks The RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap) are allocated by cgx_lmac_init() but never freed in cgx_lmac_exit(). Unbinding and rebinding the driver therefore triggers kmemleak: unreferenced object (size 16): backtrace: rvu_alloc_bitmap cgx_probe Free both bitmaps during teardown.

CWE-401Missing Release of Memory (Memory Leak)

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.170-1CVE-2026-43157

Fixed in:6.12.85-1CVE-2026-43157

Fixed in:6.19.6-1CVE-2026-43157

linuxUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-awsUbuntu

Fixed in:6.8.0-1060.63USN-8492-1

linux-aws-6.8Ubuntu

Fixed in:6.8.0-1060.63~22.04.1USN-8492-2

linux-aws-fipsUbuntu

Fixed in:6.8.0-1060.63+fips1USN-8492-1

linux-gcpUbuntu

Fixed in:6.8.0-1063.69USN-8492-1

linux-gcp-6.8Ubuntu

Fixed in:6.8.0-1063.69~22.04.1USN-8492-2

linux-gcp-fipsUbuntu

Fixed in:6.8.0-1063.69+fips1USN-8492-1

linux-gkeUbuntu

Fixed in:6.8.0-1058.64USN-8492-2

linux-gkeopUbuntu

Fixed in:6.8.0-1045.48USN-8492-2

linux-ibmUbuntu

Fixed in:6.8.0-1060.61USN-8492-1

linux-ibm-6.8Ubuntu

Fixed in:6.8.0-1060.61~22.04.1USN-8492-2

linux-image-6.8.0-1029-nvidia-tegraUbuntu

Fixed in:6.8.0-1029.30USN-8498-1

linux-image-6.8.0-1029-nvidia-tegra-rtUbuntu

Fixed in:6.8.0-1029.30USN-8498-1

linux-image-6.8.0-1032-xilinxUbuntu

Fixed in:6.8.0-1032.33USN-8499-1

linux-image-6.8.0-1045-gkeopUbuntu

Fixed in:6.8.0-1045.48USN-8492-2

linux-image-6.8.0-1057-oracleUbuntu

Fixed in:6.8.0-1057.58~22.04.1USN-8492-2

Fixed in:6.8.0-1057.58USN-8492-1

linux-image-6.8.0-1057-oracle-64kUbuntu

Fixed in:6.8.0-1057.58~22.04.1USN-8492-2

Fixed in:6.8.0-1057.58USN-8492-1

linux-image-6.8.0-1058-gkeUbuntu

Fixed in:6.8.0-1058.64USN-8492-2

linux-image-6.8.0-1058-gke-64kUbuntu

Fixed in:6.8.0-1058.64USN-8492-2

linux-image-6.8.0-1058-nvidiaUbuntu

Fixed in:6.8.0-1058.61~22.04.1USN-8492-1

Fixed in:6.8.0-1058.61USN-8492-1

linux-image-6.8.0-1058-nvidia-64kUbuntu

Fixed in:6.8.0-1058.61~22.04.1USN-8492-1

Fixed in:6.8.0-1058.61USN-8492-1

linux-image-6.8.0-1058-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1058.61.1USN-8492-2

linux-image-6.8.0-1058-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1058.61.1USN-8492-2

linux-image-6.8.0-1060-awsUbuntu

Fixed in:6.8.0-1060.63~22.04.1USN-8492-2

Fixed in:6.8.0-1060.63USN-8492-1

linux-image-6.8.0-1060-aws-64kUbuntu

Fixed in:6.8.0-1060.63~22.04.1USN-8492-2

Fixed in:6.8.0-1060.63USN-8492-1

linux-image-6.8.0-1060-aws-fipsUbuntu

Fixed in:6.8.0-1060.63+fips1USN-8492-1

linux-image-6.8.0-1060-ibmUbuntu

Fixed in:6.8.0-1060.61~22.04.1USN-8492-2

Fixed in:6.8.0-1060.61USN-8492-1

linux-image-6.8.0-1063-gcpUbuntu

Fixed in:6.8.0-1063.69~22.04.1USN-8492-2

Fixed in:6.8.0-1063.69USN-8492-1

linux-image-6.8.0-1063-gcp-64kUbuntu

Fixed in:6.8.0-1063.69~22.04.1USN-8492-2

Fixed in:6.8.0-1063.69USN-8492-1

linux-image-6.8.0-1063-gcp-fipsUbuntu

Fixed in:6.8.0-1063.69+fips1USN-8492-1

linux-image-6.8.0-134-genericUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-6.8.0-134-generic-64kUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-6.8.0-134-lowlatencyUbuntu

Fixed in:6.8.0-134.134.1~22.04.1USN-8497-1

Fixed in:6.8.0-134.134.1USN-8497-1

linux-image-6.8.0-134-lowlatency-64kUbuntu

Fixed in:6.8.0-134.134.1~22.04.1USN-8497-1

Fixed in:6.8.0-134.134.1USN-8497-1

linux-image-6.8.1-1055-realtimeUbuntu

Fixed in:6.8.1-1055.56~22.04.1USN-8492-1

Fixed in:6.8.1-1055.56USN-8492-1

linux-image-awsUbuntu

Fixed in:6.8.0-1060.63~22.04.1USN-8492-2

linux-image-aws-6.8Ubuntu

Fixed in:6.8.0-1060.63~22.04.1USN-8492-2

Fixed in:6.8.0-1060.63USN-8492-1

linux-image-aws-64kUbuntu

Fixed in:6.8.0-1060.63~22.04.1USN-8492-2

linux-image-aws-64k-6.8Ubuntu

Fixed in:6.8.0-1060.63~22.04.1USN-8492-2

Fixed in:6.8.0-1060.63USN-8492-1

linux-image-aws-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1060.63USN-8492-1

linux-image-aws-fipsUbuntu

Fixed in:6.8.0-1060.63+fips1USN-8492-1

linux-image-aws-fips-6.8Ubuntu

Fixed in:6.8.0-1060.63+fips1USN-8492-1

linux-image-aws-lts-24.04Ubuntu

Fixed in:6.8.0-1060.63USN-8492-1

linux-image-gcpUbuntu

Fixed in:6.8.0-1063.69~22.04.1USN-8492-2

linux-image-gcp-6.8Ubuntu

Fixed in:6.8.0-1063.69~22.04.1USN-8492-2

Fixed in:6.8.0-1063.69USN-8492-1

linux-image-gcp-64kUbuntu

Fixed in:6.8.0-1063.69~22.04.1USN-8492-2

linux-image-gcp-64k-6.8Ubuntu

Fixed in:6.8.0-1063.69~22.04.1USN-8492-2

Fixed in:6.8.0-1063.69USN-8492-1

linux-image-gcp-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1063.69USN-8492-1

linux-image-gcp-fipsUbuntu

Fixed in:6.8.0-1063.69+fips1USN-8492-1

linux-image-gcp-fips-6.8Ubuntu

Fixed in:6.8.0-1063.69+fips1USN-8492-1

linux-image-gcp-lts-24.04Ubuntu

Fixed in:6.8.0-1063.69USN-8492-1

linux-image-genericUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-generic-6.8Ubuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-generic-64kUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-generic-64k-6.8Ubuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-generic-lpaeUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-gkeUbuntu

Fixed in:6.8.0-1058.64USN-8492-2

linux-image-gke-6.8Ubuntu

Fixed in:6.8.0-1058.64USN-8492-2

linux-image-gke-64kUbuntu

Fixed in:6.8.0-1058.64USN-8492-2

linux-image-gke-64k-6.8Ubuntu

Fixed in:6.8.0-1058.64USN-8492-2

linux-image-gkeopUbuntu

Fixed in:6.8.0-1045.48USN-8492-2

linux-image-gkeop-6.8Ubuntu

Fixed in:6.8.0-1045.48USN-8492-2

linux-image-ibmUbuntu

Fixed in:6.8.0-1060.61USN-8492-1

linux-image-ibm-6.8Ubuntu

Fixed in:6.8.0-1060.61~22.04.1USN-8492-2

Fixed in:6.8.0-1060.61USN-8492-1

linux-image-ibm-classicUbuntu

Fixed in:6.8.0-1060.61USN-8492-1

linux-image-ibm-lts-24.04Ubuntu

Fixed in:6.8.0-1060.61USN-8492-1

linux-image-intel-iot-realtimeUbuntu

Fixed in:6.8.1-1055.56USN-8492-1

linux-image-intel-iotgUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-kvmUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-laptop-23.10Ubuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-lowlatencyUbuntu

Fixed in:6.8.0-134.134.1USN-8497-1

linux-image-lowlatency-6.8Ubuntu

Fixed in:6.8.0-134.134.1~22.04.1USN-8497-1

Fixed in:6.8.0-134.134.1USN-8497-1

linux-image-lowlatency-64kUbuntu

Fixed in:6.8.0-134.134.1USN-8497-1

linux-image-lowlatency-64k-6.8Ubuntu

Fixed in:6.8.0-134.134.1~22.04.1USN-8497-1

Fixed in:6.8.0-134.134.1USN-8497-1

linux-image-lowlatency-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-134.134.1~22.04.1USN-8497-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.8.0-134.134.1~22.04.1USN-8497-1

linux-image-nvidiaUbuntu

Fixed in:6.8.0-1058.61USN-8492-1

linux-image-nvidia-6.8Ubuntu

Fixed in:6.8.0-1058.61~22.04.1USN-8492-1

Fixed in:6.8.0-1058.61USN-8492-1

linux-image-nvidia-64kUbuntu

Fixed in:6.8.0-1058.61USN-8492-1

linux-image-nvidia-64k-6.8Ubuntu

Fixed in:6.8.0-1058.61~22.04.1USN-8492-1

Fixed in:6.8.0-1058.61USN-8492-1

linux-image-nvidia-64k-hwe-22.04Ubuntu

Fixed in:6.8.0-1058.61~22.04.1USN-8492-1

linux-image-nvidia-hwe-22.04Ubuntu

Fixed in:6.8.0-1058.61~22.04.1USN-8492-1

linux-image-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1058.61.1USN-8492-2

linux-image-nvidia-lowlatency-6.8Ubuntu

Fixed in:6.8.0-1058.61.1USN-8492-2

linux-image-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1058.61.1USN-8492-2

linux-image-nvidia-lowlatency-64k-6.8Ubuntu

Fixed in:6.8.0-1058.61.1USN-8492-2

linux-image-nvidia-tegraUbuntu

Fixed in:6.8.0-1029.30USN-8498-1

linux-image-nvidia-tegra-6.8Ubuntu

Fixed in:6.8.0-1029.30USN-8498-1

linux-image-nvidia-tegra-rtUbuntu

Fixed in:6.8.0-1029.30USN-8498-1

linux-image-nvidia-tegra-rt-6.8Ubuntu

Fixed in:6.8.0-1029.30USN-8498-1

linux-image-oem-20.04Ubuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-oem-20.04bUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-oem-20.04cUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-oem-20.04dUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-oem-22.04Ubuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-oracleUbuntu

Fixed in:6.8.0-1057.58~22.04.1USN-8492-2

linux-image-oracle-6.8Ubuntu

Fixed in:6.8.0-1057.58~22.04.1USN-8492-2

Fixed in:6.8.0-1057.58USN-8492-1

linux-image-oracle-64kUbuntu

Fixed in:6.8.0-1057.58~22.04.1USN-8492-2

linux-image-oracle-64k-6.8Ubuntu

Fixed in:6.8.0-1057.58~22.04.1USN-8492-2

Fixed in:6.8.0-1057.58USN-8492-1

linux-image-oracle-64k-lts-24.04Ubuntu

Fixed in:6.8.0-1057.58USN-8492-1

linux-image-oracle-lts-24.04Ubuntu

Fixed in:6.8.0-1057.58USN-8492-1

linux-image-realtimeUbuntu

Fixed in:6.8.1-1055.56USN-8492-1

linux-image-realtime-6.8.1Ubuntu

Fixed in:6.8.1-1055.56~22.04.1USN-8492-1

Fixed in:6.8.1-1055.56USN-8492-1

linux-image-realtime-hwe-22.04Ubuntu

Fixed in:6.8.1-1055.56~22.04.1USN-8492-1

linux-image-virtualUbuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-virtual-6.8Ubuntu

Fixed in:6.8.0-134.134USN-8492-1

linux-image-xilinxUbuntu

Fixed in:6.8.0.1032.33USN-8499-1

linux-image-xilinx-6.8Ubuntu

Fixed in:6.8.0.1032.33USN-8499-1

linux-image-xilinx-zynqmpUbuntu

Fixed in:6.8.0.1032.33USN-8499-1

linux-lowlatencyUbuntu

Fixed in:6.8.0-134.134.1USN-8497-1

linux-lowlatency-hwe-6.8Ubuntu

Fixed in:6.8.0-134.134.1~22.04.1USN-8497-1

linux-nvidiaUbuntu

Fixed in:6.8.0-1058.61USN-8492-1

linux-nvidia-6.8Ubuntu

Fixed in:6.8.0-1058.61~22.04.1USN-8492-1

linux-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1058.61.1USN-8492-2

linux-nvidia-tegraUbuntu

Fixed in:6.8.0-1029.30USN-8498-1

linux-oracleUbuntu

Fixed in:6.8.0-1057.58USN-8492-1

linux-oracle-6.8Ubuntu

Fixed in:6.8.0-1057.58~22.04.1USN-8492-2

linux-realtimeUbuntu

Fixed in:6.8.1-1055.56USN-8492-1

linux-realtime-6.8Ubuntu

Fixed in:6.8.1-1055.56~22.04.1USN-8492-1

linux-xilinxUbuntu

Fixed in:6.8.0-1032.33USN-8499-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.13%probability of exploitation in 30 days

3rdpercentile

Low risk: more likely to be exploited than 3% of all known CVEs.

References

Patch6

Related Vulnerabilities

Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13934	High	7.5	64%	-	Fix
CVE-2016-6304	High	7.5	63%	-	Fix
CVE-2019-12265	Medium	5.3	55%	-	Fix
CVE-2001-0136	Medium	5.0	45%	-	-
CVE-2016-4232	High	7.5	36%	-	-
CVE-2001-0543	Medium	5.0	21%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.