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SubjectRe: kernel panic: stack is corrupted in get_kernel_gp_address
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syzbot suspects this issue was fixed by commit:

commit a49145acfb975d921464b84fe00279f99827d816
Author: George Kennedy <george.kennedy@oracle.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

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