The dma_rx function in drivers/net/wireless/b43/dma.c in the Linux kernel before 2.6.39 does not properly allocate receive buffers, which allows remote attackers to cause a denial of service (system crash) via a crafted frame.
ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c85ce65ecac078ab1a1835c87c4a6319cf74660a
www.openwall.com/lists/oss-security/2011/09/14/2
bugzilla.redhat.com/show_bug.cgi?id=738202
github.com/torvalds/linux/commit/c85ce65ecac078ab1a1835c87c4a6319cf74660a