On 9/2/24 7:03 AM, Yu Kuai wrote: > From: Yu Kuai <yukuai3@xxxxxxxxxx> > > Our syzkaller report a UAF problem(details in patch 1), however it can't > be reporduced. And this set are some corner cases fix that might be > related, and they are found by code review. > > Yu Kuai (4): > block, bfq: fix possible UAF for bfqq->bic with merge chain > block, bfq: choose the last bfqq from merge chain in > bfq_setup_cooperator() > block, bfq: don't break merge chain in bfq_split_bfqq() > block, bfq: use bfq_reassign_last_bfqq() in bfq_bfqq_move() > > block/bfq-cgroup.c | 7 +------ > block/bfq-iosched.c | 17 +++++++++++------ > block/bfq-iosched.h | 2 ++ > 3 files changed, 14 insertions(+), 12 deletions(-) BFQ is effectively unmaintained, and has been for quite a while at this point. I'll apply these, thanks for looking into it, but I think we should move BFQ to an unmaintained state at this point. -- Jens Axboe
