Is CVE-2026-98296 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-98296 being exploited in the wild.

How severe is CVE-2026-98296?

Informational severity, published 6 October 2026.

Which products and versions are affected?

Linux Kernels with btintel_pcie driver prior to commit 4b837ebd0ea21ae5cc26f02dc042edc6fe7b46b9.

Is there a fix for CVE-2026-98296?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

Am I affected by CVE-2026-98296?

Check whether you run Linux at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-98296: Linux kernel Bluetooth btintel_pcie buffer overflow in TX

CVE-2026-98296 · Severity: info · Published 2026-10-06

The Linux kernel's Bluetooth Intel PCIe driver contains a buffer overflow vulnerability in packet transmission. An attacker with the ability to send oversized packets through the btintel_pcie_send_sync() function could overflow a 4096-byte DMA buffer, potentially causing kernel memory corruption or system crash.

Quick answers

Is CVE-2026-98296 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-98296 being exploited in the wild.
How severe is CVE-2026-98296?: Informational severity, published 6 October 2026.
Which products and versions are affected?: Linux Kernels with btintel_pcie driver prior to commit 4b837ebd0ea21ae5cc26f02dc042edc6fe7b46b9.
Is there a fix for CVE-2026-98296?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-98296 attacked?: It is in an operating system.
Am I affected by CVE-2026-98296?: Check whether you run Linux at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The btintel_pcie_prepare_tx() function performs an unchecked memcpy() of skb->len bytes into a fixed 4096-byte DMA buffer. While btintel_pcie_send_frame() validated packet size, direct callers of btintel_pcie_send_sync() could bypass this check. The fix adds length validation in btintel_pcie_send_sync() before the DMA copy, returning -EMSGSIZE for oversized packets.

Affected products

Linux Kernels with btintel_pcie driver prior to commit 4b837ebd0ea21ae5cc26f02dc042edc6fe7b46b9

Timeline

2026-10-06: disclosed

References

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