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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=COnmbLew20zkF+FzyZfgdF3WSpoxS9ODMLIOlwN5k7U=; b=NmQcMeWkMRjx5zbkjPYURbGgkQpHDQwbOBPAq/PgRQqJa8HaQtW6suAzm/Jf+zJWKg fvXIWiD49NO8PMczpeiFZ9Y7b9JpTw4aazi3+ixysUHBL6fsP6ZdbwWx1RHJT5V2rCxE M4Wor0dMiAnARfmYEQs9TDvq6QlXQtiSIikKdrxQ4n+PCGaWvCq8Jrhn/u9lIEYUzh9v hBE7Pc5938JXmf39/WXJH6YLcyhTR77ZIp5QU4rarW+WbddJGxwWcBaTGuAuEYvHiXjh S5LhoY+oI9B9MO33OCpaJX1Jf7XHp4CZqxEcvc/S+kmgF2fIk8CD9Bj4a0Jglv8eWaSt tr8w== X-Gm-Message-State: AFqh2koXc7v1VIfUHEXcJF7Cjtms3v5P4fN5x/iS0NBLtv2HiorEIdvE COPL6SPFSBkN3pePqbGqgw+xUIf1kQfIkXfII9YBCkS5LSSo X-Google-Smtp-Source: AMrXdXtoxKkczxMUSPqKSsvlZ1PfFu37a3s2GnuDNQHwv/sMQmwAAkPep5UMh37l28i2MT5V4xUA7BFp7RVMInhQdXui48qgpjjD MIME-Version: 1.0 X-Received: by 2002:a92:4a11:0:b0:30b:b565:2b9e with SMTP id m17-20020a924a11000000b0030bb5652b9emr5797624ilf.158.1673360134151; Tue, 10 Jan 2023 06:15:34 -0800 (PST) Date: Tue, 10 Jan 2023 06:15:34 -0800 In-Reply-To: <000000000000d677c405f1e4e1e6@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000060a8bf05f1e9843b@google.com> Subject: Re: [syzbot] WARNING in vma_complete From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has found a reproducer for the following issue on: HEAD commit: 435bf71af3a0 Add linux-next specific files for 20230110 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=177d1036480000 kernel config: https://syzkaller.appspot.com/x/.config?x=2de08b99ad4f49c dashboard link: https://syzkaller.appspot.com/bug?extid=ea4b1a683ce48cd567b1 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1437baa4480000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/8541d2e988c8/disk-435bf71a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/09d8d0545d93/vmlinux-435bf71a.xz kernel image: https://storage.googleapis.com/syzbot-assets/f99de1e244bf/bzImage-435bf71a.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ea4b1a683ce48cd567b1@syzkaller.appspotmail.com R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc0a0d41ff R14: 00007f7a0d952300 R15: 0000000000022000 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5109 at mm/mmap.c:170 vma_iter_store mm/mmap.c:170 [inline] WARNING: CPU: 0 PID: 5109 at mm/mmap.c:170 vma_complete.cold+0x9/0x2fb mm/mmap.c:634 Modules linked in: CPU: 1 PID: 5109 Comm: syz-executor.0 Not tainted 6.2.0-rc3-next-20230110-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:vma_iter_store mm/mmap.c:170 [inline] RIP: 0010:vma_complete.cold+0x9/0x2fb mm/mmap.c:634 Code: 37 00 48 c1 ea 03 48 c1 e0 2a 80 3c 02 00 74 08 48 89 ef e8 4f e3 10 f8 4c 8b 6d 00 e9 ce b3 ff f7 48 89 34 24 e8 fd f5 c2 f7 <0f> 0b 48 8b 34 24 4c 89 f2 48 c7 c7 e0 53 58 8a e8 45 d9 fe ff 49 RSP: 0018:ffffc90003ed7ae0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffc90003ed7b88 RCX: 0000000000000000 RDX: ffff8880262fba80 RSI: ffffffff89bec7c3 RDI: 0000000000000006 RBP: ffffc90003ed7d58 R08: 0000000000000006 R09: 0000000020003000 R10: 0000000021000000 R11: 0000000000094001 R12: ffff88801dcd88c0 R13: ffff888029118000 R14: 0000000020003000 R15: ffffc90003ed7d60 FS: 00007f7a0d952700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ad2e343118 CR3: 000000007884b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __split_vma+0x61d/0x740 mm/mmap.c:2273 split_vma+0xc6/0x110 mm/mmap.c:2300 mlock_fixup+0x56a/0x810 mm/mlock.c:436 apply_vma_lock_flags+0x23d/0x350 mm/mlock.c:506 do_mlock+0x25a/0x6d0 mm/mlock.c:601 __do_sys_mlock2 mm/mlock.c:628 [inline] __se_sys_mlock2 mm/mlock.c:618 [inline] __x64_sys_mlock2+0xc1/0x100 mm/mlock.c:618 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7a0cc8c0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7a0d952168 EFLAGS: 00000246 ORIG_RAX: 0000000000000145 RAX: ffffffffffffffda RBX: 00007f7a0cdabf80 RCX: 00007f7a0cc8c0c9 RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020000000 RBP: 00007f7a0cce7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc0a0d41ff R14: 00007f7a0d952300 R15: 0000000000022000