Is CVE-2024-40909 in the CISA KEV catalog?

No. CVE-2024-40909 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-40909?

CVE-2024-40909 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2024-40909?

CVE-2024-40909 has an EPSS score of 0.28% (20th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-40909?

Upgrade linux on debian 13 to 6.9.7-1 or later. Fixes are available for 73 affected products.

CVE & CISA-KEV Catalog

CVE-2024-40909

HIGH

7.8

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a potential use-after-free in bpf_link_free() After commit 1a80dbcb2dba, bpf_link can be freed by link->ops->dealloc_deferred, but the code still tests and uses link->ops->dealloc afterward, which leads to a use-after-free as reported by syzbot. Actually, one of them should be sufficient, so just call one of them instead of both. Also add a WARN_ON() in case of any problematic implementation.

CWE-416Use After Free

How to fix

Remediation Available

linuxDebian

Fixed in:6.9.7-1CVE-2024-40909

linuxUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-awsUbuntu

Fixed in:6.8.0-1015.16USN-6999-1

linux-azureUbuntu

Fixed in:6.8.0-1014.16USN-7004-1

linux-gcpUbuntu

Fixed in:6.8.0-1014.16USN-6999-1

linux-gkeUbuntu

Fixed in:6.8.0-1010.13USN-6999-1

linux-hwe-6.8Ubuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-ibmUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-6.8.0-1010-gkeUbuntu

Fixed in:6.8.0-1010.13USN-6999-1

linux-image-6.8.0-1011-raspiUbuntu

Fixed in:6.8.0-1011.12USN-6999-2

linux-image-6.8.0-1012-ibmUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-6.8.0-1012-oemUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-6.8.0-1012-oracleUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-6.8.0-1012-oracle-64kUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-6.8.0-1013-nvidiaUbuntu

Fixed in:6.8.0-1013.14~22.04.1USN-7005-2

Fixed in:6.8.0-1013.14USN-7005-1

linux-image-6.8.0-1013-nvidia-64kUbuntu

Fixed in:6.8.0-1013.14~22.04.1USN-7005-2

Fixed in:6.8.0-1013.14USN-7005-1

linux-image-6.8.0-1013-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1013.14.1USN-7005-1

linux-image-6.8.0-1013-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1013.14.1USN-7005-1

linux-image-6.8.0-1014-azureUbuntu

Fixed in:6.8.0-1014.16USN-7004-1

linux-image-6.8.0-1014-azure-fdeUbuntu

Fixed in:6.8.0-1014.16USN-7004-1

linux-image-6.8.0-1014-gcpUbuntu

Fixed in:6.8.0-1014.16USN-6999-1

linux-image-6.8.0-1015-awsUbuntu

Fixed in:6.8.0-1015.16USN-6999-1

linux-image-6.8.0-44-genericUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-6.8.0-44-generic-64kUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-6.8.0-44-lowlatencyUbuntu

Fixed in:6.8.0-44.44.1~22.04.1USN-7008-1

Fixed in:6.8.0-44.44.1USN-6999-1

linux-image-6.8.0-44-lowlatency-64kUbuntu

Fixed in:6.8.0-44.44.1~22.04.1USN-7008-1

Fixed in:6.8.0-44.44.1USN-6999-1

linux-image-6.8.0-45-genericUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-6.8.0-45-generic-64kUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-awsUbuntu

Fixed in:6.8.0-1015.16USN-6999-1

linux-image-azureUbuntu

Fixed in:6.8.0-1014.16USN-7004-1

linux-image-azure-fdeUbuntu

Fixed in:6.8.0-1014.16USN-7004-1

linux-image-gcpUbuntu

Fixed in:6.8.0-1014.16USN-6999-1

linux-image-genericUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-generic-64kUbuntu

Fixed in:6.8.0-44.44USN-6999-1

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

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-generic-64k-hwe-24.04Ubuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-generic-hwe-22.04Ubuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-generic-hwe-24.04Ubuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-generic-lpaeUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-gkeUbuntu

Fixed in:6.8.0-1010.13USN-6999-1

linux-image-ibmUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-ibm-classicUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-ibm-lts-24.04Ubuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-kvmUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-lowlatencyUbuntu

Fixed in:6.8.0-44.44.1USN-6999-1

linux-image-lowlatency-64kUbuntu

Fixed in:6.8.0-44.44.1USN-6999-1

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

Fixed in:6.8.0-44.44.1~22.04.1USN-7008-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.8.0-44.44.1~22.04.1USN-7008-1

linux-image-nvidiaUbuntu

Fixed in:6.8.0-1013.13USN-7005-1

linux-image-nvidia-6.8Ubuntu

Fixed in:6.8.0-1013.14~22.04.1USN-7005-2

linux-image-nvidia-64kUbuntu

Fixed in:6.8.0-1013.13USN-7005-1

linux-image-nvidia-64k-6.8Ubuntu

Fixed in:6.8.0-1013.14~22.04.1USN-7005-2

linux-image-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1013.14.1USN-7005-1

linux-image-nvidia-lowlatency-64kUbuntu

Fixed in:6.8.0-1013.14.1USN-7005-1

linux-image-oem-22.04Ubuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-oem-22.04aUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-oem-22.04bUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-oem-22.04cUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-oem-22.04dUbuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-oracleUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-oracle-64kUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-image-raspiUbuntu

Fixed in:6.8.0-1011.12USN-6999-2

linux-image-virtualUbuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:6.8.0-45.45~22.04.1USN-7029-1

linux-image-virtual-hwe-24.04Ubuntu

Fixed in:6.8.0-44.44USN-6999-1

linux-lowlatencyUbuntu

Fixed in:6.8.0-44.44.1USN-6999-1

linux-lowlatency-hwe-6.8Ubuntu

Fixed in:6.8.0-44.44.1~22.04.1USN-7008-1

linux-nvidiaUbuntu

Fixed in:6.8.0-1013.14USN-7005-1

linux-nvidia-6.8Ubuntu

Fixed in:6.8.0-1013.14~22.04.1USN-7005-2

linux-nvidia-lowlatencyUbuntu

Fixed in:6.8.0-1013.14.1USN-7005-1

linux-oem-6.8Ubuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-oracleUbuntu

Fixed in:6.8.0-1012.12USN-6999-1

linux-raspiUbuntu

Fixed in:6.8.0-1011.12USN-6999-2

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.28%probability of exploitation in 30 days

20thpercentile

Low risk: more likely to be exploited than 20% of all known CVEs.

References

Patch3

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

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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 2024-11-21.