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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-98731

Bluetooth: btintel_pcie: fix plen overflow in btintel_pcie_recv_frame()CVE-2026-98731

Answer in brief

CVE-2026-98731 records a Unknown severity vulnerability in Bluetooth: btintel_pcie: fix plen overflow in btintel_pcie_recv_frame(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 18, 2026Updated Oct 19, 2026Source checked Oct 25, 2026First seen by HOL Oct 18, 2026Material review Oct 19, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=c2b636b3f788d10486a6691ad6dd3ec4c93bd78e <c3a3842c109ac130c6db3aa0014cc8cd344928ad || >=c2b636b3f788d10486a6691ad6dd3ec4c93bd78e <c3b5e6da4ba6485bffda9753d8339c28855207aa || >=c2b636b3f788d10486a6691ad6dd3ec4c93bd78e <b2cb5ea1dc8cf829816370fc1399e6a1d2d1bca9 || >=c2b636b3f788d10486a6691ad6dd3ec4c93bd78e <7dbeb6935ac331b0cba6c41cabd8e9d02d5f64eac3a3842c109ac130c6db3aa0014cc8cd344928ad, c3b5e6da4ba6485bffda9753d8339c28855207aa, b2cb5ea1dc8cf829816370fc1399e6a1d2d1bca9, 7dbeb6935ac331b0cba6c41cabd8e9d02d5f64ea
Linux/Linuxgeneric6.10Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to c3a3842c109ac130c6db3aa0014cc8cd344928ad if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 18, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 19, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 18, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel_pcie: fix plen overflow in btintel_pcie_recv_frame() plen is u16 and computed as HDR_SIZE + dlen. For ACL/ISO frames dlen is a 16-bit field, so a value >= 0xFFFC wraps the sum, bypassing the "skb->len < plen" check and letting skb_trim() truncate the packet. Widen plen to u32 so the addition cannot wrap.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 25, 2026
References
4 linked sources
Open source record