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CVE-2026-72092

accel/amdxdna: reject command submission on devices without a submit op

Description

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).

Timeline

  1. ID reserved

    By Linux

  2. · 6 days later

    Published

  3. · 2 days later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.

EPSS (exploitation in 30 days)
0.21% · top 89% of all CVEs (11 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.

Affected products

  • Linux · Linux

    • affected aac243092b707bb3018e951d470cc1a9bcbaba6c – < af7a4c2caa7a191d6e7ed33903b69f9901874cd0
    • affected aac243092b707bb3018e951d470cc1a9bcbaba6c – < f7d08603c87bae19ca3e424da5ab6d0aee81886e
    • affected aac243092b707bb3018e951d470cc1a9bcbaba6c – < 38953513d7313992676d4136cd425cdb70c6278e

  • Linux · Linux

    • affected 6.14
    • unaffected < 6.14
    • unaffected 6.18.42 – ≤ 6.18.*
    • unaffected 7.1.5 – ≤ 7.1.*
    • unaffected 7.2 – ≤ *

References

References3

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .