High 8.8Published Aug 10, 2026

CVE-2026-68107drm/amdgpu/vcn4: avoid rereading IB param length

Updated under an hour ago (Oct 28, 2026, 4:23 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn4: avoid rereading IB param length Reuse the parameter length returned by vcn_v4_0_enc_find_ib_param() instead of rereading it from the IB. This avoids a potential TOCTOU issue if the IB contents change between reads. (cherry picked from commit dbb02b4755f8c1f3773263f2d779872c1c0c073a)

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-367
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from cfdde9197ecd957281507be99af172671a57755c before bbbe6a2a8d8dc87243438d3ffea2083b52d882d9; from 6dc4eddeb7e6cca7e1ab32cafbda79d06e652d84 before ff6aa542d91d76a185f69bd1997b94a560ff5f6b; from 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 before bd868c077f67589ed2a714307ceaade5f246e302; from 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 before c309626bf91fa0a0b583575654e6e14e81f818a3; from 2b10cb58d7a3fd621ec9b2ba765a092e562ef998 before 3b4082fabc67c9780b06eb959e59dd92fa79c0f0; b1dc92f55b22a80ded8f0263c9ef4ba902303895; from 6.6.107 before 6.6.148; from 6.12.48 before 6.12.101; and 1 more ranges	CNA record

References

References

https://git.kernel.org/stable/c/bbbe6a2a8d8dc87243438d3ffea2083b52d882d9
https://git.kernel.org/stable/c/ff6aa542d91d76a185f69bd1997b94a560ff5f6b
https://git.kernel.org/stable/c/bd868c077f67589ed2a714307ceaade5f246e302
https://git.kernel.org/stable/c/c309626bf91fa0a0b583575654e6e14e81f818a3
https://git.kernel.org/stable/c/3b4082fabc67c9780b06eb959e59dd92fa79c0f0

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.