Messages in this thread | | | Date | Wed, 4 Jul 2018 17:20:18 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: KASAN: use-after-scope Read in __hrtimer_run_queues |
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On Wed, 4 Jul 2018, syzbot wrote:
> Hello, > > syzbot found the following crash on: > > HEAD commit: 2bdea157b999 Merge branch 'sctp-fully-support-for-dscp-and.. > git tree: bpf-next > console output: https://syzkaller.appspot.com/x/log.txt?x=14339f42400000 > kernel config: https://syzkaller.appspot.com/x/.config?x=f62553dc846b0692 > dashboard link: https://syzkaller.appspot.com/bug?extid=7f73a81393d3b3777fb0 > compiler: gcc (GCC) 8.0.1 20180413 (experimental) > > Unfortunately, I don't have any reproducer for this crash yet. > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+7f73a81393d3b3777fb0@syzkaller.appspotmail.com > > ================================================================== > BUG: KASAN: use-after-scope in lookup_object lib/debugobjects.c:157 [inline] > BUG: KASAN: use-after-scope in debug_object_deactivate+0x425/0x450 > lib/debugobjects.c:540 > Read of size 8 at addr ffff88019d1a5ec0 by task syz-executor3/13445
I don't see how lib/debugobjects.c:157 would be a valid use after scope issue. The one in line 540 makes no sense either.
Thanks,
tglx
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