On 4/4/24 10:27 PM, Eric Dumazet wrote:
syzbot reported an illegal copy in xsk_setsockopt() [1]
Make sure to validate setsockopt() @optlen parameter.
[...]
Fixes: 423f38329d26 ("xsk: add umem fill queue support and mmap")
Reported-by: syzbot <syzkaller@xxxxxxxxxxxxxxxx>
Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Cc: "Björn Töpel" <bjorn@xxxxxxxxxx>
Cc: Magnus Karlsson <magnus.karlsson@xxxxxxxxx>
Cc: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx>
Cc: Jonathan Lemon <jonathan.lemon@xxxxxxxxx>
Cc: bpf@xxxxxxxxxxxxxxx
Given bpf tree PR went out, Jakub, feel free to take directly :
Acked-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
Thanks Eric !
