CVE-2026-72023
Vulnerability Scoring
Analysis In Progress
CVE-2026-72023 Vulnerability Analysis & Exploit Details
CVE-2026-72023
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2026-72023 Details
Status: Received on 15 Aug 2026, 06:21 UTC
Last updated: 🕐 23 Aug 2026, 13:16 UTC
Originally published on: 🕕 15 Aug 2026, 06:21 UTC
Time between publication and last update: 8 days
CVSS Release:
CVE-2026-72023 Vulnerability Summary
CVE-2026-72023: In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix SQB pointer leak on init failure otx2_init_hw_resources() initializes SQ aura and pool resources before several later setup steps. On failure, err_free_sq_ptrs only frees SQB pages, leaving the per-SQ sqb_ptrs arrays behind. Use otx2_free_sq_res() for the SQ unwind path and let it free sqb_ptrs even when sq->sqe has not been allocated yet. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1.1. An x86_64 allyesconfig build showed no new warnings. As we do not have an OcteonTX2 PF device and the corresponding AF mailbox setup to test with, no runtime testing was able to be performed.
Assessing the Risk of CVE-2026-72023
Access Complexity Graph
The exploitability of CVE-2026-72023 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2026-72023
No exploitability data is available for CVE-2026-72023.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2026-72023, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2026-72023, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2026-72023 does not compromise confidentiality.
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Integrity:
None
CVE-2026-72023 does not impact data integrity.
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Availability:
None
CVE-2026-72023 does not affect system availability.
CVE-2026-72023 References
External References
- https://git.kernel.org/stable/c/148d7ec0a3a98839c320e6cdd112e2e88bfb091b
- https://git.kernel.org/stable/c/23d917acd9c9a9fd999688ec3fdde7aa58ab8a14
- https://git.kernel.org/stable/c/2cac2eac935ed7e0a9203204e036a1f6090ebc3d
- https://git.kernel.org/stable/c/42c2836f10ac0427dac9e9a923d6ee2189dec544
- https://git.kernel.org/stable/c/5df30f05db96552903680a17f858d250dfd9e86e
- https://git.kernel.org/stable/c/5e023fe2569e630ba23b5558ebe4bf4837af4d16
- https://git.kernel.org/stable/c/62e7df6d042aeebd5efb581074e28865c04477be
- https://git.kernel.org/stable/c/fca9c22633169a6c5d429a32e439121b6419e2be
CWE Common Weakness Enumeration
Unknown
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