linux-kernel - Re: kernel panic: stack is corrupted in get_kernel_gp

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Message-ID: <0000000000004c208d05b3f8cbb6@google.com>
Date:   Fri, 13 Nov 2020 00:27:07 -0800
From:   syzbot <syzbot+d6459d8f8984c0929e54@...kaller.appspotmail.com>
To:     alexandre.chartre@...cle.com, b.zolnierkie@...sung.com,
        bp@...en8.de, dan.carpenter@...cle.com, george.kennedy@...cle.com,
        hpa@...or.com, linux-kernel@...r.kernel.org, luto@...nel.org,
        mingo@...hat.com, peterz@...radead.org,
        syzkaller-bugs@...glegroups.com, tglx@...utronix.de, x86@...nel.org
Subject: Re: kernel panic: stack is corrupted in get_kernel_gp_address

syzbot suspects this issue was fixed by commit:

commit a49145acfb975d921464b84fe00279f99827d816
Author: George Kennedy <george.kennedy@...cle.com>
Date:   Tue Jul 7 19:26:03 2020 +0000

    fbmem: add margin check to fb_check_caps()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=10ff7572500000
start commit:   f4d51dff Linux 5.9-rc4
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=a9075b36a6ae26c9
dashboard link: https://syzkaller.appspot.com/bug?extid=d6459d8f8984c0929e54
userspace arch: i386
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=164270dd900000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: fbmem: add margin check to fb_check_caps()

For information about bisection process see: https://goo.gl/tpsmEJ#bisection