octeontx2-pf: fix SQB pointer leak on init failure
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 2 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.266, 5.15.217, 6.1.184, 6.6.148, 6.12.101, 6.18.40, 7.1.5, 7.2
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2026-72023
- 2026-10-03 Alias added: GHSA-pg89-x9gq-22c7
References
Other 8
- https://git.kernel.org/stable/c/fca9c22633169a6c5d429a32e439121b6419e2be
- https://git.kernel.org/stable/c/42c2836f10ac0427dac9e9a923d6ee2189dec544
- https://git.kernel.org/stable/c/2cac2eac935ed7e0a9203204e036a1f6090ebc3d
- https://git.kernel.org/stable/c/148d7ec0a3a98839c320e6cdd112e2e88bfb091b
- https://git.kernel.org/stable/c/5e023fe2569e630ba23b5558ebe4bf4837af4d16
- https://git.kernel.org/stable/c/5df30f05db96552903680a17f858d250dfd9e86e
- https://git.kernel.org/stable/c/23d917acd9c9a9fd999688ec3fdde7aa58ab8a14
- https://git.kernel.org/stable/c/62e7df6d042aeebd5efb581074e28865c04477be
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- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-72023 · CVE Program
- CVE-2026-72023 · NVD
- FIRST EPSS
- GHSA-pg89-x9gq-22c7 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-72023 · Red Hat security data · CC BY 4.0
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