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=15bb0a93300000 start commit: 626bf91a292e Merge tag 'net-5.15-rc1' of git://git.kernel... git tree: net-next final oops: https://syzkaller.appspot.com/x/report.txt?x=17bb0a93300000 console output: https://syzkaller.appspot.com/x/log.txt?x=13bb0a93300000 kernel config: https://syzkaller.appspot.com/x/.config?x=16e23f04679ec35e dashboard link: https://syzkaller.appspot.com/bug?extid=a568bbab323b96631e61 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=178b5d0d300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16fad1dd300000 Reported-by: syzbot+a568bbab323b96631e61@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls") For information about bisection process see: https://goo.gl/tpsmEJ#bisection