Re: [PATCH bpf-next] bpf: Fix error path under memory pressure
From: Alexei Starovoitov <hidden>
Date: 2020-01-22 02:45:58
Also in:
bpf
On Tue, Jan 21, 2020 at 6:42 PM Alexei Starovoitov [off-list ref] wrote:
Restore the 'if (env->cur_state)' check that was incorrectly removed during
code move. Under memory pressure env->cur_state can be freed and zeroed inside
do_check(). Hence the check is necessary.
Fixes: 51c39bb1d5d1 ("bpf: Introduce function-by-function verification")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>Forgot to add: Reported-by: syzbot+b296579ba5015704d9fa@syzkaller.appspotmail.com Daniel, pls add while applying.