GHSA-5r7j-r8w6-f8xcHighCVSS 8.8
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: 6lowpan: reset...
🔗 CVE IDs covered (1)
📋 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: ... packet_rcv (net/packet/af_packet.c:2152) ... __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)
🔗 References (10)
- https://nvd.nist.gov/vuln/detail/CVE-2025-40282
- 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
- https://github.com/advisories/GHSA-5r7j-r8w6-f8xc