Comment 32 for bug 643788

UPDATE: Kernel 2.6.32-25-generic does indeed not have the -1 channel problem. I am able to use aireplay and inject packets correctly.

I would still like to find a solution for the current kernel version though so if someone knows how to fix the b43 channel -1 problem please post.

lspci shows:
Network controller: Broadcom Corporation BCM4312 802.11a/b/g (rev 02)