CVE-2026-98291 PUBLISHED

Bluetooth: btintel_pcie: fix off-by-one bounds check in RX submit

Assigner: Linux
Reserved: 25.09.2026 Published: 06.10.2026 Updated: 06.10.2026

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: btintel_pcie: fix off-by-one bounds check in RX submit

btintel_pcie_submit_rx() used frbd_index > rxq->count to guard the FRBD array access, allowing frbd_index == rxq->count to pass through and index one element past the end of the array. Change the check to

= rxq->count so every out-of-range index is rejected.

This issue was reported by Claude Mythos.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from c2b636b3f788d10486a6691ad6dd3ec4c93bd78e to b5214d72bfdf8ef7744d0c8147e6ebb09b36b259 (excl.)
  • affected from c2b636b3f788d10486a6691ad6dd3ec4c93bd78e to 18464860ce27af0dccd2fc72830610b85b518cff (excl.)
  • affected from c2b636b3f788d10486a6691ad6dd3ec4c93bd78e to de4c3c72bcc6e8474f70c22427f94ca44bccd890 (excl.)
  • affected from c2b636b3f788d10486a6691ad6dd3ec4c93bd78e to 2ea5a87a5a7ae58cb2662b8a7d06f209383e1765 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.10 is affected
  • unaffected from 0 to 6.10 (excl.)
  • unaffected from 6.12.112 to 6.12.* (incl.)
  • unaffected from 6.18.54 to 6.18.* (incl.)
  • unaffected from 7.2.8 to 7.2.* (incl.)
  • unaffected from 7.3-rc4 to * (incl.)

References