Riskcovery

CVE-2026-80779

net/ionic: avoid OOB TX partner lookup for hwstamp RXQ

State
Published
Severity
Not scored
Published
Sep 4, 2026
Updated
Oct 19, 2026
Reserved
Aug 26, 2026

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 8eeed8373e1cca836799bf8e4a05cffa8e444908 to before 881a805a8029ba48c0ce81c6674910f8d83f7afbAffected
  • 8eeed8373e1cca836799bf8e4a05cffa8e444908 to before 39fc615e355b65b8d43be30da57aa95ae6eaf688Affected
  • 8eeed8373e1cca836799bf8e4a05cffa8e444908 to before f3868046e8e2e761d4d943a232bd109ff22a7d5bAffected
  • 8eeed8373e1cca836799bf8e4a05cffa8e444908 to before ea081b4435515ac7177eb598a3c0678d1b9e7911Affected
  • 8eeed8373e1cca836799bf8e4a05cffa8e444908 to before d92255b405fb6f5acca408239ccd742e0a42c9cbAffected
LinuxLinux
  • 6.9Affected
  • before 6.9Not affected
  • 6.12.106 through 6.12.*Not affected
  • 6.18.47 through 6.18.*Not affected
  • 7.1.11 through 7.1.*Not affected
  • 7.2.1 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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