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

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

mm: don't allow oversized kvmalloc() calls

bisection log:
start commit: f9ff5644bcc0 Merge tag 'hsi-for-6.2' of git://git.kernel.o..
git tree: upstream
final oops:
console output:
kernel config:
dashboard link:
syz repro:
C reproducer:

Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls")

For information about bisection process see:

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