From: Eric Dumazet <edumazet@xxxxxxxxxx>
Date: Tue, 24 Sep 2019 12:29:34 -0700
> After commit a2c11b034142 ("kcm: use BPF_PROG_RUN")
> syzbot easily triggers the warning in cant_sleep().
>
> As explained in commit 6cab5e90ab2b ("bpf: run bpf programs
> with preemption disabled") we need to disable preemption before
> running bpf programs.
...
> Fixes: a2c11b034142 ("kcm: use BPF_PROG_RUN")
> Fixes: 6cab5e90ab2b ("bpf: run bpf programs with preemption disabled")
> Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
> Reported-by: syzbot <syzkaller@xxxxxxxxxxxxxxxx>
Applied.
