Linux Kernel up to 7.2-rc2 octeontx2-af state issue

CVSS Meta Temp Score
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CTI Interest Score
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8.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 7.2-rc2 and classified as very critical. This issue affects the function rvu_npc_enable_allmulti_entry/rvu_npc_enable_promisc_entry of the component octeontx2-af. The manipulation results in state issue. This vulnerability is reported as CVE-2026-72312. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Linux Kernel up to 7.2-rc2. Affected is the function rvu_npc_enable_allmulti_entry/rvu_npc_enable_promisc_entry of the component octeontx2-af. The manipulation with an unknown input leads to a state issue vulnerability. CWE is classifying the issue as CWE-371. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: fix VF bringup affecting PF promiscuous state Mbox handling of nix_set_rx_mode for a VF with promiscuous and all_multi flags set to false causes deletion of the PF's promiscuous and allmulti MCAM rules. This occurs because the APIs that enable/disable these rules operate only on the PF, even when the mbox request is made via a VF interface. Guard both rvu_npc_enable_allmulti_entry() and rvu_npc_enable_promisc_entry() disable paths with an is_vf() check so that a VF bringing up or tearing down its interface cannot inadvertently clear the PF's MCAM rules.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2026-72312 since 08/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/15/2026).

Upgrading to version 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5 or 7.2-rc3 eliminates this vulnerability. Applying the patch daa2451640a3e0727fd598f5c2ccb8bb4d5a8b9c/212c59e5e416859579272288fd325148fc316109/53e17d9ed779ad25870abb9c31bc294c71a2278c/3de77d2f34c2bc2acaedabc2c5e0a561b85c283a/3cf83432e0561aef6d7ec2664909d12d0ff0ffc1/fabb881df322da25442f98d23f5fa371e3c78ec4 is able to eliminate this problem.

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Productinfo

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Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.1
VulDB Meta Temp Score: 8.7

VulDB Base Score: 9.1
VulDB Temp Score: 8.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: State issue
CWE: CWE-371
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.178/6.6.145/6.12.97/6.18.40/7.1.5/7.2-rc3
Patch: daa2451640a3e0727fd598f5c2ccb8bb4d5a8b9c/212c59e5e416859579272288fd325148fc316109/53e17d9ed779ad25870abb9c31bc294c71a2278c/3de77d2f34c2bc2acaedabc2c5e0a561b85c283a/3cf83432e0561aef6d7ec2664909d12d0ff0ffc1/fabb881df322da25442f98d23f5fa371e3c78ec4

Timelineinfo

08/09/2026 CVE reserved
08/15/2026 +6 days Advisory disclosed
08/15/2026 +0 days VulDB entry created
08/15/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-72312 (🔒)
GCVE (CVE): GCVE-0-2026-72312
GCVE (VulDB): GCVE-100-390702

Entryinfo

Created: 08/15/2026 14:10
Changes: 08/15/2026 14:10 (59)
Complete: 🔍
Cache ID: 216::103

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