GHSA-PHPF-XWR2-R7XQ
Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32In 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).
{
"affected": [],
"aliases": [
"CVE-2026-72092"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-15T06:21:23Z",
"severity": null
},
"details": "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).",
"id": "GHSA-phpf-xwr2-r7xq",
"modified": "2026-08-15T06:32:11Z",
"published": "2026-08-15T06:32:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72092"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/38953513d7313992676d4136cd425cdb70c6278e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/af7a4c2caa7a191d6e7ed33903b69f9901874cd0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f7d08603c87bae19ca3e424da5ab6d0aee81886e"
}
],
"schema_version": "1.4.0",
"severity": []
}
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