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CVE-2026-98602

Unknown

Last modified

CVE-2026-98602 is a vulnerability of currently unknown severity. 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.

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.

Affected Software

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

VendorProductVersions
LinuxLinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 7af80ad2cebfe2f1879d6a39a1aaa061d9c4e1ca; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 667aa703e11cdc237d169393bc6a5ea9acbb33c2; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 3e605ff5932afe0970c2beca66f2f1ba2babe4dd; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 035f9b1809861967e58ce652680d70ea1502058f; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 1e7aebc188f889b56c3aaeb6133ef6d77022c887; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8f31031326994d1abfcc6ebb6927ef96e51fb9ff; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < ad0d2d4ada51321db787262ef343193c712b76b5; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f0ca020cbb9bb7f3f4ea8ba1dfcf30a282aec91e
LinuxLinux2.6.12

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98602?
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.
How severe is CVE-2026-98602?
Severity scoring for CVE-2026-98602 is pending analysis.
How do I fix CVE-2026-98602?
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