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CVE-2026-98731

Unknown

Last modified

CVE-2026-98731 is a vulnerability of currently unknown severity. 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..

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= c2b636b3f788d10486a6691ad6dd3ec4c93bd78e, < c3a3842c109ac130c6db3aa0014cc8cd344928ad; >= c2b636b3f788d10486a6691ad6dd3ec4c93bd78e, < c3b5e6da4ba6485bffda9753d8339c28855207aa; >= c2b636b3f788d10486a6691ad6dd3ec4c93bd78e, < b2cb5ea1dc8cf829816370fc1399e6a1d2d1bca9; >= c2b636b3f788d10486a6691ad6dd3ec4c93bd78e, < 7dbeb6935ac331b0cba6c41cabd8e9d02d5f64ea
LinuxLinux6.10

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98731?
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.
How severe is CVE-2026-98731?
Severity scoring for CVE-2026-98731 is pending analysis.
How do I fix CVE-2026-98731?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST