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CVE-2026-72092 (GCVE-0-2026-72092)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:52 – Updated: 2026-08-17 05:08
VLAI
Title
accel/amdxdna: reject command submission on devices without a submit op
Summary
In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: reject command submission on devices without a submit op amdxdna_cmd_submit() calls xdna->dev_info->ops->cmd_submit() unconditionally, but only aie2_dev_ops defines that callback. aie4_vf_ops (the AIE4 SR-IOV virtual function) does not, so a user AMDXDNA_EXEC_CMD ioctl on an AIE4 device reaches a NULL function-pointer call and oopses the kernel. AIE4 submits work through a mapped user queue and doorbell, not this ioctl path. Reject the submission early with -EOPNOTSUPP when the device provides no cmd_submit op, so the shared EXEC ioctl is a clean no-op on such devices. Found by 0sec automated security-research tooling (https://0sec.ai).
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: aac243092b707bb3018e951d470cc1a9bcbaba6c , < af7a4c2caa7a191d6e7ed33903b69f9901874cd0 (git)
Affected: aac243092b707bb3018e951d470cc1a9bcbaba6c , < f7d08603c87bae19ca3e424da5ab6d0aee81886e (git)
Affected: aac243092b707bb3018e951d470cc1a9bcbaba6c , < 38953513d7313992676d4136cd425cdb70c6278e (git)
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Linux Linux Affected: 6.14
Unaffected: 0 , < 6.14 (semver)
Unaffected: 6.18.42 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: reject command submission on devices without a submit op\n\namdxdna_cmd_submit() calls xdna-\u003edev_info-\u003eops-\u003ecmd_submit()\nunconditionally, but only aie2_dev_ops defines that callback.\naie4_vf_ops (the AIE4 SR-IOV virtual function) does not, so a user\nAMDXDNA_EXEC_CMD ioctl on an AIE4 device reaches a NULL function-pointer\ncall and oopses the kernel. AIE4 submits work through a mapped user queue\nand doorbell, not this ioctl path.\n\nReject the submission early with -EOPNOTSUPP when the device provides no\ncmd_submit op, so the shared EXEC ioctl is a clean no-op on such devices.\n\nFound by 0sec automated security-research tooling (https://0sec.ai)."
        }
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    "datePublished": "2026-08-15T05:52:39.120Z",
    "dateReserved": "2026-08-09T03:40:39.905Z",
    "dateUpdated": "2026-08-17T05:08:03.359Z",
    "state": "PUBLISHED"
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}



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