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CVE-2026-23280accel/amdxdna: Prevent ubuf size overflow

Description

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Prevent ubuf size overflow The ubuf size calculation may overflow, resulting in an undersized allocation and possible memory corruption. Use check_add_overflow() helpers to validate the size calculation before allocation.

Timeline

  1. ID reserved

    By Linux

  2. · 2 months later

    Published

  3. · 4 months 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

CVSS scores of CVE-2026-23280, by who scored it
Scored byCVSSScoreVector
LinuxCNA (assigner)3.1High7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Analyzed3.1High7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.14% · top 97% of all CVEs (14 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Affected products

  • Linux · Linux

    • affected bd72d4acda1069579b35123e3cc0b21ec1193a21 – < 1500b31db94374a6669e73ce94d6f71cf8e85e06
    • affected bd72d4acda1069579b35123e3cc0b21ec1193a21 – < 972bf4a23478fcb247b4f507d47a584bc8aea5bd
    • affected bd72d4acda1069579b35123e3cc0b21ec1193a21 – < 03808abb1d868aed7478a11a82e5bb4b3f1ca6d6

  • Linux · Linux

    • affected 6.18
    • unaffected < 6.18
    • unaffected 6.18.17 – ≤ 6.18.*
    • unaffected 6.19.7 – ≤ 6.19.*
    • unaffected 7.0 – ≤ *

References

References3

Sources

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

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Record last updated .