Re: [PATCH] ppp: fix out-of-bounds access in bpf_prog_create()
From: Arnd Bergmann <arnd@arndb.de>
Date: 2019-12-05 09:08:03
Also in:
bpf, linux-fsdevel, lkml
On Thu, Dec 5, 2019 at 6:55 AM Eric Biggers [off-list ref] wrote:
From: Eric Biggers <redacted>
sock_fprog_kern::len is in units of struct sock_filter, not bytes.
Fixes: 3e859adf3643 ("compat_ioctl: unify copy-in of ppp filters")
Reported-by: syzbot+eb853b51b10f1befa0b7@syzkaller.appspotmail.com
Signed-off-by: Eric Biggers <redacted>Reviewed-by: Arnd Bergmann <arnd@arndb.de> Thanks for fixing the bug I introduced!