Re: [syzbot] WARNING: kmalloc bug in xdp_umem_create (2)

[syzbot]

syzbot has bisected this issue to:

commit 7661809d493b426e979f39ab512e3adf41fbcc69
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date:   Wed Jul 14 16:45:49 2021 +0000

    mm: don't allow oversized kvmalloc() calls

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13bc74c2700000
start commit:   f4bc5bbb5fef Merge tag 'nfsd-5.17-2' of git://git.kernel.o..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=107c74c2700000
console output: https://syzkaller.appspot.com/x/log.txt?x=17bc74c2700000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5707221760c00a20
dashboard link: https://syzkaller.appspot.com/bug?extid=11421fbbff99b989670e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12e514a4700000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15fcdf8a700000

Reported-by: syzbot+11421fbbff99b989670e@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls")

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