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Review reviewHigh

CVE-2025-40282

Linux

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: 6lowpan: reset link-local header on ipv6 recv path Bluetooth 6lowpan.c netdev has header_ops, so it must set link-local header for RX skb, otherwise things crash, eg. with AF_PACKET SOCK_RAW Add missing skb_reset_mac_header() for uncompressed ipv6 RX path. For the compressed one, it is done in lowpan_header_decompress(). Log: (BlueZ 6lowpan-tester Client Recv Raw - Success) ------ kernel BUG at net/core/skbuff.c:212! Call Trace: <IRQ> ... packet_rcv (net/packet/af_packet.c:2152) ... <TASK> __local_bh_enable_ip (k...

CVSS
8.8
EPSS
0.27%
19.4% percentile
CISA KEV
Not listed
Published
2025.12.07
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.27%
Technical severityCVSS 8.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: 6lowpan: reset link-local header on ipv6 recv path Bluetooth 6lowpan.c netdev has header_ops, so it must set link-local header for RX skb, otherwise things crash, eg. with AF_PACKET SOCK_RAW Add missing skb_reset_mac_header() for uncompressed ipv6 RX path. For the compressed one, it is done in lowpan_header_decompress(). Log: (BlueZ 6lowpan-tester Client Recv Raw - Success) ------ kernel BUG at net/core/skbuff.c:212! Call Trace: <IRQ> ... packet_rcv (net/packet/af_packet.c:2152) ... <TASK> __local_bh_enable_ip (k...

Affected product and versions

Product
Linux
Affected versions
>= 18722c247023035b9e2e2a08a887adec2a9a6e49 < ea46a1d217bc82e01cf3d0424e50ebfe251e34bf, >= 18722c247023035b9e2e2a08a887adec2a9a6e49 < 973e0271754c77db3e1b6b69adf2de85a79a4c8b, >= 18722c247023035b9e2e2a08a887adec2a9a6e49 < d566e9a2bfc848941b091ffd5f4e12c4e889d818, >= 18722c247023035b9e2e2a08a887adec2a9a6e49 < 4ebb90c3c309e6375dc3e841af92e2a039843e62, >= 18722c247023035b9e2e2a08a887adec2a9a6e49 < c24ac6cfe4f9a47180a65592c47e7a310d2f9d93, >= 18722c247023035b9e2e2a08a887adec2a9a6e49 < 11cd7e068381666f842ad41d1cc58eecd0c75237, >= 18722c247023035b9e2e2a08a887adec2a9a6e49 < 70d84e7c3a44b81020a3c3d650a64c63593405bd, >= 18722c247023035b9e2e2a08a887adec2a9a6e49 < 3b78f50918276ab28fb22eac9aa49401ac436a3b, >= 3.14
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Not available
CVE-2025-40282 — Linux | SECUFOCUS NOW