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) ------
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
18722c247023035b9e2e2a08a887adec2a9a6e49 to < ea46a1d217bc82e01cf3d0424e50ebfe251e34bfaffected18722c247023035b9e2e2a08a887adec2a9a6e49 to < 973e0271754c77db3e1b6b69adf2de85a79a4c8baffected18722c247023035b9e2e2a08a887adec2a9a6e49 to < d566e9a2bfc848941b091ffd5f4e12c4e889d818affected18722c247023035b9e2e2a08a887adec2a9a6e49 to < 4ebb90c3c309e6375dc3e841af92e2a039843e62affected18722c247023035b9e2e2a08a887adec2a9a6e49 to < c24ac6cfe4f9a47180a65592c47e7a310d2f9d93affected18722c247023035b9e2e2a08a887adec2a9a6e49 to < 11cd7e068381666f842ad41d1cc58eecd0c75237affected18722c247023035b9e2e2a08a887adec2a9a6e49 to < 70d84e7c3a44b81020a3c3d650a64c63593405bdaffected18722c247023035b9e2e2a08a887adec2a9a6e49 to < 3b78f50918276ab28fb22eac9aa49401ac436a3baffected
Linux Linux
Default version status: affected
3.14affected0 to < 3.14unaffected5.4.302 to ≤ 5.4.*unaffected5.10.247 to ≤ 5.10.*unaffected5.15.197 to ≤ 5.15.*unaffected6.1.159 to ≤ 6.1.*unaffected6.6.117 to ≤ 6.6.*unaffected6.12.59 to ≤ 6.12.*unaffected6.17.9 to ≤ 6.17.*unaffected6.18 to ≤ *unaffected
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 ↗