Messages in this thread | | | Subject | Re: KASAN: null-ptr-deref Write in blk_mq_map_swqueue | From | Bart Van Assche <> | Date | Thu, 26 Mar 2020 20:00:15 -0700 |
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On 2020-03-26 18:28, syzbot wrote: > syzbot has bisected this bug to: > > commit 768134d4f48109b90f4248feecbeeb7d684e410c > Author: Jens Axboe <axboe@kernel.dk> > Date: Mon Nov 11 03:30:53 2019 +0000 > > io_uring: don't do flush cancel under inflight_lock > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14233ef5e00000 > start commit: 1b649e0b Merge git://git.kernel.org/pub/scm/linux/kernel/g.. > git tree: upstream > final crash: https://syzkaller.appspot.com/x/report.txt?x=16233ef5e00000 > console output: https://syzkaller.appspot.com/x/log.txt?x=12233ef5e00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=27392dd2975fd692 > dashboard link: https://syzkaller.appspot.com/bug?extid=313d95e8a7a49263f88d > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13850447e00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=119a26f5e00000 > > Reported-by: syzbot+313d95e8a7a49263f88d@syzkaller.appspotmail.com > Fixes: 768134d4f481 ("io_uring: don't do flush cancel under inflight_lock") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection
#syz fix: blk-mq: Fix a recently introduced regression in blk_mq_realloc_hw_ctxs()
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