CVE-2026-80779
net/ionic: avoid OOB TX partner lookup for hwstamp RXQ
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: net/ionic: avoid OOB TX partner lookup for hwstamp RXQ The dedicated hardware timestamp RX queue is allocated with q->index equal to lif->ionic->nrxqs_per_lif. The normal txqcqs array only contains the regular queue pairs, so using that index to set rxq->partner can read one entry past txqcqs[] and then write through the derived pointer. Only link RX/TX partners for normal queue-pair indexes. Leave the hwstamp RX queue unpaired, and make the XDP_TX path abort cleanly if an RX queue has no TX partner.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 4, 2026 |
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Affected Versions
Linux / Linux
8eeed8373e1cca836799bf8e4a05cffa8e444908 < 881a805a8029ba48c0ce81c6674910f8d83f7afb 8eeed8373e1cca836799bf8e4a05cffa8e444908 < 39fc615e355b65b8d43be30da57aa95ae6eaf688 8eeed8373e1cca836799bf8e4a05cffa8e444908 < f3868046e8e2e761d4d943a232bd109ff22a7d5b 8eeed8373e1cca836799bf8e4a05cffa8e444908 < ea081b4435515ac7177eb598a3c0678d1b9e7911 8eeed8373e1cca836799bf8e4a05cffa8e444908 < d92255b405fb6f5acca408239ccd742e0a42c9cb
Linux / Linux
6.9
References
git.kernel.org: https://git.kernel.org/stable/c/881a805a8029ba48c0ce81c6674910f8d83f7afb git.kernel.org: https://git.kernel.org/stable/c/39fc615e355b65b8d43be30da57aa95ae6eaf688 git.kernel.org: https://git.kernel.org/stable/c/f3868046e8e2e761d4d943a232bd109ff22a7d5b git.kernel.org: https://git.kernel.org/stable/c/ea081b4435515ac7177eb598a3c0678d1b9e7911 git.kernel.org: https://git.kernel.org/stable/c/d92255b405fb6f5acca408239ccd742e0a42c9cb