Messages in this thread | | | Subject | Re: KASAN: invalid-access Read in kmem_cache_destroy | From | Vincenzo Frascino <> | Date | Thu, 28 Jan 2021 13:29:23 +0000 |
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On 1/28/21 12:43 PM, Dmitry Vyukov wrote: > On Thu, Jan 28, 2021 at 1:30 PM Vincenzo Frascino > <vincenzo.frascino@arm.com> wrote: >> >> On 1/27/21 7:50 PM, Andrey Konovalov wrote: >>> On Wed, Jan 27, 2021 at 6:44 PM Mark Brown <broonie@kernel.org> wrote: >>>> >>>> On Wed, Jan 27, 2021 at 06:14:13PM +0100, Dmitry Vyukov wrote: >>>>> On Wed, Jan 27, 2021 at 5:58 PM syzbot >>>>> <syzbot+2a52b6c31dbefb1e9d9f@syzkaller.appspotmail.com> wrote: >>>>>> >>>>>> Hello, >>>>>> >>>>>> syzbot found the following issue on: >>>>>> >>>>>> HEAD commit: 2ab38c17 mailmap: remove the "repo-abbrev" comment >>>>>> git tree: upstream >>>>>> console output: https://syzkaller.appspot.com/x/log.txt?x=12eb4ad8d00000 >>>>>> kernel config: https://syzkaller.appspot.com/x/.config?x=ad43be24faf1194c >>>>>> dashboard link: https://syzkaller.appspot.com/bug?extid=2a52b6c31dbefb1e9d9f >>>>>> userspace arch: arm64 >>>>>> >>>>>> Unfortunately, I don't have any reproducer for this issue yet. >>>>>> >>>>>> IMPORTANT: if you fix the issue, please add the following tag to the commit: >>>>>> Reported-by: syzbot+2a52b6c31dbefb1e9d9f@syzkaller.appspotmail.com >>>>> >>>>> This happens on arm64 instance with MTE enabled. >>>>> I don't see any corresponding reports on x86_64. So I would assume >>>>> it's a generic latent bug, or probably more likely a bug in MTE >>>>> support. >>>> >>>> Copying in Vincenso who's done a bunch of MTE stuff recently. >>> >>> Could be the same issue as: >>> >>> https://lkml.org/lkml/2021/1/27/1109 >>> >> >> I had a look at the trace and I agree with Andrey it seems the same issue. > > > #syz fix: Revert "mm/slub: fix a memory leak in sysfs_slab_add()" >
Thanks for the confirmation.
-- Regards, Vincenzo
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