CVE-2026-98730 PUBLISHED

Bluetooth: btintel_pcie: reject oversized TX packets in send_frame()

Assigner: Linux
Reserved: 25.09.2026 Published: 18.10.2026 Updated: 18.10.2026

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

Bluetooth: btintel_pcie: reject oversized TX packets in send_frame()

btintel_pcie_send_frame() eventually copies skb->data into a fixed BTINTEL_PCIE_BUFFER_SIZE (4096) DMA buffer via memcpy() in btintel_pcie_prepare_tx(), with a 4-byte PCIe type header prepended. A user-space process with HCI_CHANNEL_USER access can inject an oversized packet and overflow the buffer.

Reject packets larger than BTINTEL_PCIE_BUFFER_SIZE - BTINTEL_PCIE_HCI_TYPE_LEN on entry.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 6e65a09f927566f257322358d429b267548473eb to 3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc (excl.)
  • affected from 6e65a09f927566f257322358d429b267548473eb to 84df222de86eabed543361025ed54ce838c0b573 (excl.)
  • affected from 6e65a09f927566f257322358d429b267548473eb to 9806a748f9ab223b733624367b6ddda77fb9450e (excl.)
  • affected from 6e65a09f927566f257322358d429b267548473eb to f771f96557a4d953a7e4d045870547271e36e819 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.10 is affected
  • unaffected from 0 to 6.10 (excl.)
  • unaffected from 6.12.113 to 6.12.* (incl.)
  • unaffected from 6.18.56 to 6.18.* (incl.)
  • unaffected from 7.2.10 to 7.2.* (incl.)
  • unaffected from 7.3-rc6 to * (incl.)

References