From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f199.google.com (mail-oi1-f199.google.com [209.85.167.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 912C744AB62 for ; Fri, 16 Oct 2026 07:32:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792135974; cv=none; b=Ke+l5Fu0q0+qB+J3f7JmO8cXTtQpdwhUZUpeUqJTWI3DnPMvP6EXjqsoRL70iq7AQP+CKm76VsItDFZ9KrxilmGU0ADQrPQyGr7FDyfpm7D/NW9u4Jx3CPoDypM6ePWVFxJtZ147qtjZZdHSQO6/2DfmG40Tt7xzKWcImmMwNV0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792135974; c=relaxed/simple; bh=0lqg0zig61PhYIVpk8JV6/dZoMgln3ExA6zGv3cfk+w=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=KPv48r1sscDeDsy7jaFRiqYjggkvqgdhkImpe9WLnRIJFvYzMAYv/7Q/hxAgqCsRkhRwpG0Z5we99UTyHdWT1ecCVrj23hX3WAMd8jxlSUds1cDystmlrE/QU+wUwiqCDOnRAC1SV8s3bv1cQ8hyC+QtCHJ5nujmFkrm9aaqMUQ= ARC-Authentication-Results:i=1; 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AKwUvBx3Aw1q1I7yVkCCYkpppSk3r5k36jyZv1+jY9Y6NCTteUUMaQuqtyvd5g321KuZifi49SNi1vU5HrZP1rM=@vger.kernel.org X-Gm-Message-State: AFq9FYLE6roXNOCboITrzY2TOsCD3/S3YcSbzNSWZQ+UDSnagEIrq2Vz nGLfyrHSYIIEpc+pYpHZgqenXP7OHoOA375sFf05ynZd11IvfOImYksITpKfUOTpwSOu/pYzCkq L5jU35/H78IqBPNiczgCYvqtmzXp8wHsV7Dz7JP5tgI/NgD3l8Tr/3sUNbnM= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:4f4b:b0:4e8:2150:2a1 with SMTP id 5614622812f47-50c57c62debmr22950300b6e.68.1792135968946; Fri, 16 Oct 2026 00:32:48 -0700 (PDT) Date: Fri, 16 Oct 2026 00:32:48 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ad1d320.a6d1a155.34a93f.0000.GAE@google.com> Subject: [syzbot] [fs?] WARNING in minix_rmdir (2) From: syzbot To: linux-fsdevel@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: b88c841d1164 Merge tag 'input-for-v7.3-rc6' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14db50a5580000 kernel config: https://syzkaller.appspot.com/x/.config?x=7d1b274ca9837366 dashboard link: https://syzkaller.appspot.com/bug?extid=8420e667af06b1709c00 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17ba149c580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=114291d1580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-b88c841d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c64cd81f2bae/vmlinux-b88c841d.xz kernel image: https://storage.googleapis.com/syzbot-assets/605b0408da7b/bzImage-b88c841d.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/3ed2a0024dcf/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8420e667af06b1709c00@syzkaller.appspotmail.com ------------[ cut here ]------------ inode->i_nlink == 0 WARNING: fs/inode.c:408 at drop_nlink+0xc5/0x110 fs/inode.c:408, CPU#0: syz-executor/5454 Modules linked in: CPU: 0 UID: 0 PID: 5454 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:drop_nlink+0xc5/0x110 fs/inode.c:408 Code: a8 07 00 00 be 08 00 00 00 e8 f7 68 e4 ff f0 48 ff 83 a8 07 00 00 5b 41 5c 41 5e 41 5f 5d e9 52 90 97 09 cc e8 0c e7 71 ff 90 <0f> 0b 90 eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5b ff ff ff RSP: 0018:ffffc900033b7d10 EFLAGS: 00010293 RAX: ffffffff82563a14 RBX: ffff8880439c30b0 RCX: ffff888013d0cb00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff917a977f R09: 1ffffffff22f52ef R10: dffffc0000000000 R11: fffffbfff22f52f0 R12: 1ffff1100873861f R13: dffffc0000000000 R14: ffff8880439c30f8 R15: dffffc0000000000 FS: 000055555e111500(0000) GS:ffff88808b0b4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556e57c72048 CR3: 0000000013446000 CR4: 0000000000352ef0 Call Trace: inode_dec_link_count include/linux/fs.h:2269 [inline] minix_rmdir+0xfc/0x140 fs/minix/namei.c:183 vfs_rmdir+0x3e6/0x6a0 fs/namei.c:5544 filename_rmdir+0x292/0x520 fs/namei.c:5601 __do_sys_unlinkat fs/namei.c:5776 [inline] __se_sys_unlinkat+0x71/0x1a0 fs/namei.c:5769 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f819279d2f7 Code: 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 07 01 00 00 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:00007ffef5481018 EFLAGS: 00000207 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f819279d2f7 RDX: 0000000000000200 RSI: 00007ffef54821c0 RDI: 00000000ffffff9c RBP: 00007f8192834ccb R08: 0000000000018560 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000207 R12: 00007ffef54821c0 R13: 00007f8192834ccb R14: 0000000000028576 R15: 00007ffef5484380 --- 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