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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-80779

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

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 8eeed8373e1cca836799bf8e4a05cffa8e444908 to < 881a805a8029ba48c0ce81c6674910f8d83f7afbaffected
  • 8eeed8373e1cca836799bf8e4a05cffa8e444908 to < 39fc615e355b65b8d43be30da57aa95ae6eaf688affected
  • 8eeed8373e1cca836799bf8e4a05cffa8e444908 to < f3868046e8e2e761d4d943a232bd109ff22a7d5baffected
  • 8eeed8373e1cca836799bf8e4a05cffa8e444908 to < ea081b4435515ac7177eb598a3c0678d1b9e7911affected
  • 8eeed8373e1cca836799bf8e4a05cffa8e444908 to < d92255b405fb6f5acca408239ccd742e0a42c9cbaffected

Linux Linux

Default version status: affected

  • 6.9affected
  • 0 to < 6.9unaffected
  • 6.12.106 to ≤ 6.12.*unaffected
  • 6.18.47 to ≤ 6.18.*unaffected
  • 7.1.11 to ≤ 7.1.*unaffected
  • 7.2.1 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References