High 8.8Published Dec 6, 2025

CVE-2025-40282Bluetooth: 6lowpan: reset link-local header on ipv6 recv path

Updated under an hour ago (Oct 26, 2026, 4:50 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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 (kernel/softirq.c:407) netif_rx (net/core/dev.c:5648) chan_recv_cb (net/bluetooth/6lowpan.c:294 net/bluetooth/6lowpan.c:359) ------

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 18722c247023035b9e2e2a08a887adec2a9a6e49 before ea46a1d217bc82e01cf3d0424e50ebfe251e34bf; 18722c247023035b9e2e2a08a887adec2a9a6e49 builds before 973e0271754c77db3e1b6b69adf2de85a79a4c8b; from 18722c247023035b9e2e2a08a887adec2a9a6e49 before d566e9a2bfc848941b091ffd5f4e12c4e889d818; 18722c247023035b9e2e2a08a887adec2a9a6e49 builds before 4ebb90c3c309e6375dc3e841af92e2a039843e62; from 18722c247023035b9e2e2a08a887adec2a9a6e49 before c24ac6cfe4f9a47180a65592c47e7a310d2f9d93; 18722c247023035b9e2e2a08a887adec2a9a6e49 builds before 11cd7e068381666f842ad41d1cc58eecd0c75237; 18722c247023035b9e2e2a08a887adec2a9a6e49 builds before 70d84e7c3a44b81020a3c3d650a64c63593405bd; 18722c247023035b9e2e2a08a887adec2a9a6e49 builds before 3b78f50918276ab28fb22eac9aa49401ac436a3b	CNA record

References

https://git.kernel.org/stable/c/ea46a1d217bc82e01cf3d0424e50ebfe251e34bf
https://git.kernel.org/stable/c/973e0271754c77db3e1b6b69adf2de85a79a4c8b
https://git.kernel.org/stable/c/d566e9a2bfc848941b091ffd5f4e12c4e889d818
https://git.kernel.org/stable/c/4ebb90c3c309e6375dc3e841af92e2a039843e62
https://git.kernel.org/stable/c/c24ac6cfe4f9a47180a65592c47e7a310d2f9d93
https://git.kernel.org/stable/c/11cd7e068381666f842ad41d1cc58eecd0c75237
https://git.kernel.org/stable/c/70d84e7c3a44b81020a3c3d650a64c63593405bd
https://git.kernel.org/stable/c/3b78f50918276ab28fb22eac9aa49401ac436a3b

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.