wireguard-linux-compat/src/compat/skb_array/include/linux, branch masterWireGuard kernel module backport for Linux 3.10 - 5.5https://git.zx2c4.com/wireguard-linux-compat/atom/src/compat/skb_array/include/linux?h=master2022-03-02T22:49:51Zqueueing: use CFI-safe ptr_ring cleanup function2022-03-02T22:49:51ZJason A. DonenfeldJason@zx2c4.com2022-03-02T22:48:40Zurn:sha1:4eff63d292f714a67834bfbd7cbc4c0fa0b1dd52
We make too nuanced use of ptr_ring to entirely move to the skb_array
wrappers, but we at least should avoid the naughty function pointer cast
when cleaning up skbs. Otherwise RAP/CFI will honk at us. This patch
uses the __skb_array_destroy_skb wrapper for the cleanup, rather than
directly providing kfree_skb, which is what other drivers in the same
situation do too.
Reported-by: PaX Team <pageexec@freemail.hu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>