CVE-2025-40282

Description

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) ------

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References

Other References

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

Frequently Asked Questions

What is CVE-2025-40282? +

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) ------

How do I check if I'm vulnerable to CVE-2025-40282? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2025-40282

Description

References

Other References

Frequently Asked Questions

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