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AFNElJ9jlfMKxhZc4kfyLEjWssqddWM0ZQS6ftp19ohI7uDiCJpnpBJE4CQbNVKZDxbRt59+emmIJeykNdg55A==@vger.kernel.org X-Gm-Message-State: AOJu0Yx6z4Gy9nTpLSNg7EWez7pikxWhdQY4hgVMo1e8SzXWHJrXf5Dl Iru3icjaq7BkQW4CE8rgWJKL1YQaOL0gQM0IFr2wXrpithtnKBKgBBmhOTDMbZYQL+eDiLrQZ9N 0pSA0I2eeUz2uVqsS3zjRmfLwbGWuYuhOJMJ6Uy7d0GFeo1gop14DfDWCLek= Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:163:b0:696:2cfa:5d85 with SMTP id 006d021491bc7-69b8803d652mr9877587eaf.13.1779224077243; Tue, 19 May 2026 13:54:37 -0700 (PDT) Date: Tue, 19 May 2026 13:54:37 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a0cce0d.170a0220.3cbd30.0137.GAE@google.com> Subject: [syzbot] [btrfs?] WARNING in btrfs_rename2 (2) From: syzbot To: clm@fb.com, dsterba@suse.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: d458a240344c Merge tag 'block-7.1-20260515' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12de58ec580000 kernel config: https://syzkaller.appspot.com/x/.config?x=f2e8ebfec4636d32 dashboard link: https://syzkaller.appspot.com/bug?extid=8b14244ee8d43b313915 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=142e1fce580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=146998c8580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/81db812cf8a9/disk-d458a240.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d60234f33956/vmlinux-d458a240.xz kernel image: https://storage.googleapis.com/syzbot-assets/06b47f22d6a0/bzImage-d458a240.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/37b66df1a3ba/mount_0.gz fsck result: OK (log: https://syzkaller.appspot.com/x/fsck.log?x=15804d6a580000) IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8b14244ee8d43b313915@syzkaller.appspotmail.com ------------[ cut here ]------------ !new_inode WARNING: fs/btrfs/inode.c:8616 at btrfs_rename fs/btrfs/inode.c:8616 [inline], CPU#1: syz.1.22/6085 WARNING: fs/btrfs/inode.c:8616 at btrfs_rename2+0x1c07/0x40d0 fs/btrfs/inode.c:8854, CPU#1: syz.1.22/6085 Modules linked in: CPU: 1 UID: 0 PID: 6085 Comm: syz.1.22 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:btrfs_rename fs/btrfs/inode.c:8616 [inline] RIP: 0010:btrfs_rename2+0x1c07/0x40d0 fs/btrfs/inode.c:8854 Code: 00 e8 4d 43 dc fd 41 80 f6 01 45 0f b6 c6 48 8b 7c 24 18 48 c7 c6 46 09 67 8d ba 3b 21 00 00 e9 53 03 00 00 e8 2a 43 dc fd 90 <0f> 0b 90 41 bf ef ff ff ff e9 f2 f9 ff ff 4c 89 7c 24 08 4c 8b 7c RSP: 0018:ffffc900046cf800 EFLAGS: 00010293 RAX: ffffffff83e83636 RBX: fffff520008d9f24 RCX: ffff888029319ec0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900046cfbb0 R08: ffff888029319ec0 R09: 0000000000000002 R10: 0000000000000100 R11: 00000000ffffffef R12: ffffc900046cfa38 R13: 1ffff1100bdaf993 R14: 00000000ffffffef R15: ffff8880457d4c58 FS: 00007f08aa1556c0(0000) GS:ffff888126274000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6dee4c5000 CR3: 000000003d816000 CR4: 00000000003526f0 Call Trace: vfs_rename+0xa96/0xeb0 fs/namei.c:6054 filename_renameat2+0x539/0x9c0 fs/namei.c:6172 __do_sys_rename fs/namei.c:6216 [inline] __se_sys_rename+0x55/0x2c0 fs/namei.c:6212 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f08aab1ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f08aa155028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f08aad96090 RCX: 00007f08aab1ce59 RDX: 0000000000000000 RSI: 00002000000002c0 RDI: 0000200000000280 RBP: 00007f08aabb2d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f08aad96128 R14: 00007f08aad96090 R15: 00007ffc34538de8 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup