In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control fallthrough
Fix multiple out-of-bounds reads in Bluetooth BNEP frame processing:
1. In bnep_rx_frame() and bnep_ctrl_frame() (net/bluetooth/bnep/core.c),
use pskb_may_pull() to verify the BNEP header, control type byte,
filter count, and extension headers exist before reading them, and
return 0 after handling BNEP_CONTROL instead of falling through to
Ethernet frame submission when no extension headers follow.
2. In bnep_net_xmit() (net/bluetooth/bnep/netdev.c), verify skb->len >=
ETH_HLEN with pskb_may_pull() before reading the 14-byte Ethernet
header to prevent an out-of-bounds heap read and infoleak on short
AF_PACKET TX frames.
Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control fallthrough
Fix multiple out-of-bounds reads in Bluetooth BNEP frame processing:
1. In bnep_rx_frame() and bnep_ctrl_frame() (net/bluetooth/bnep/core.c),
use pskb_may_pull() to verify the BNEP header, control type byte,
filter count, and extension headers exist before reading them, and
return 0 after handling BNEP_CONTROL instead of falling through to
Ethernet frame submission when no extension headers follow.
2. In bnep_net_xmit() (net/bluetooth/bnep/netdev.c), verify skb->len >=
ETH_HLEN with pskb_may_pull() before reading the 14-byte Ethernet
header to prevent an out-of-bounds heap read and infoleak on short
AF_PACKET TX frames.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sun, 18 Oct 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control fallthrough Fix multiple out-of-bounds reads in Bluetooth BNEP frame processing: 1. In bnep_rx_frame() and bnep_ctrl_frame() (net/bluetooth/bnep/core.c), use pskb_may_pull() to verify the BNEP header, control type byte, filter count, and extension headers exist before reading them, and return 0 after handling BNEP_CONTROL instead of falling through to Ethernet frame submission when no extension headers follow. 2. In bnep_net_xmit() (net/bluetooth/bnep/netdev.c), verify skb->len >= ETH_HLEN with pskb_may_pull() before reading the 14-byte Ethernet header to prevent an out-of-bounds heap read and infoleak on short AF_PACKET TX frames. | |
| Title | Bluetooth: bnep: fix out-of-bounds reads on short RX/TX frames and control fallthrough | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
|
Projects
Sign in to view the affected projects.
MITRE
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-10-18T15:19:14.606Z
Reserved: 2026-09-25T10:25:14.359Z
Link: CVE-2026-98602
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-10-18T16:17:12.920
Modified: 2026-10-18T16:17:12.920
Link: CVE-2026-98602
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses
No weakness.