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SubjectRe: [syzbot] [btrfs?] WARNING: kmalloc bug in btrfs_ioctl_send
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syzbot has bisected this issue to:

commit 7661809d493b426e979f39ab512e3adf41fbcc69
Author: Linus Torvalds <torvalds@linux-foundation.org>
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=13f2c851480000
start commit: f9ff5644bcc0 Merge tag 'hsi-for-6.2' of git://git.kernel.o..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=100ac851480000
console output: https://syzkaller.appspot.com/x/log.txt?x=17f2c851480000
kernel config: https://syzkaller.appspot.com/x/.config?x=827916bd156c2ec6
dashboard link: https://syzkaller.appspot.com/bug?extid=4376a9a073770c173269
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1775aed7880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11cbcbd0480000

Reported-by: syzbot+4376a9a073770c173269@syzkaller.appspotmail.com
Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls")

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

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