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version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 14 Feb 2025, at 10:48, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: df5d6180169a Add linux-next specific files for 20250210= > git tree: linux-next > console+strace: https://syzkaller.appspot.com/x/log.txt?x=3D16d343f8580= 000 > kernel config: https://syzkaller.appspot.com/x/.config?x=3D2cd616b6e73= 6ca7 > dashboard link: https://syzkaller.appspot.com/bug?extid=3D012c6245eaea0= e23f7f9 > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for D= ebian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D138972a45= 80000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D11737b18580= 000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/92495cf20271/d= isk-df5d6180.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/4b3656161842/vmli= nux-df5d6180.xz > kernel image: https://storage.googleapis.com/syzbot-assets/7fbc4e7a0f5d= /bzImage-df5d6180.xz > > The issue was bisected to: > > commit 19c067c8a0f18b62d4a4235b0b327624c86f2e40 > Author: Zi Yan > Date: Wed Feb 5 03:14:13 2025 +0000 > > mm/huge_memory: add buddy allocator like folio_split() > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=3D102f9bdf= 980000 > final oops: https://syzkaller.appspot.com/x/report.txt?x=3D122f9bdf= 980000 > console output: https://syzkaller.appspot.com/x/log.txt?x=3D142f9bdf980= 000 I have reproduced it locally and am working on a fix. Thanks for the repo= rting. Best Regards, Yan, Zi