Messages in this thread | | | Date | Thu, 21 Nov 2019 09:36:14 -0800 | From | Kees Cook <> | Subject | Re: general protection fault in tss_update_io_bitmap |
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On Thu, Nov 21, 2019 at 12:01:15PM +0100, Borislav Petkov wrote: > On Wed, Nov 20, 2019 at 05:55:09PM -0800, syzbot wrote: > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit: 5d1131b4 Add linux-next specific files for 20191119 > > git tree: linux-next > > console output: https://syzkaller.appspot.com/x/log.txt?x=177979d2e00000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=b60c562d89e5a8df > > dashboard link: https://syzkaller.appspot.com/bug?extid=81e6ff9d4cdb05fd4f5e > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1549ed8ce00000 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17f91012e00000 > > > > The bug was bisected to: > > > > commit 111e7b15cf10f6e973ccf537c70c66a5de539060 > > Author: Thomas Gleixner <tglx@linutronix.de> > > Date: Tue Nov 12 20:40:33 2019 +0000 > > > > x86/ioperm: Extend IOPL config to control ioperm() as well > > > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10490e86e00000 > > final crash: https://syzkaller.appspot.com/x/report.txt?x=12490e86e00000 > > console output: https://syzkaller.appspot.com/x/log.txt?x=14490e86e00000 > > Try this: > > https://git.kernel.org/tip/e3cb0c7102f04c83bf1a7cb1d052e92749310b46
Rewording so syzbot can see it (https://goo.gl/tpsmEJ#testing-patches) ...
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git e3cb0c7102f04c83bf1a7cb1d052e92749310b46
-- Kees Cook
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