Eric Biggers 0033b34a03 ppp: fix out-of-bounds access in bpf_prog_create() ...

sock_fprog_kern::len is in units of struct sock_filter, not bytes.

Fixes: 3e859adf36 ("compat_ioctl: unify copy-in of ppp filters")
Reported-by: syzbot+eb853b51b10f1befa0b7@syzkaller.appspotmail.com
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

2019-12-05 14:45:19 -08:00

80 KiB

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