From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.210.70 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792451551; b=TUBv8qBK4GaaX6WQibvIZuRqRTA15jFHUiSTCFwaI4JKXq1pXE1JjSqi0wp8aOZFCWgD BYp/7lGD2Oz82GwZU7/8hR5XxMoiZ3GGcdnybD3ZYDrNox+jBjLih28Z/LY1DNitJT45s VzWA1KcgSlm6lOq0AR0DHy/nYvP/zFCV4p2G93gadr/GoeXDuIcqLO6pmTyaza2Mn5vjR Vc3Vg5wNAWeei/3fcEoFeGrkQrTigLSICIC+F0Sj2Q2YIms8jbYprwEfOleBoOMXXGh/Y UB/jO7phYbBaG1PRnhJg2mPYgE/+kykSCx3/PIUQmbYyWJo50x0+FWGBU2KP1XmmHDA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792451551; h=DMARC-Filter:Received:X-Google-DKIM-Signature:X-Forwarded-Encrypted: X-Gm-Message-State:MIME-Version:X-Received:Date: X-Google-Appengine-App-Id:X-Google-Appengine-App-Id-Alias:Message-ID: Subject:From:To:Content-Type; bh=AWMwpb1c3GewdK0NA9FnsQ5ripekQjx/SitnL4ttYRE=; b=pbRq1aZPZam4qEoyUu+iG9i9HNmVbTzcajmdET997fVmZVng6LeiHPN3shl6X61cHCIo 7v/Q2SyBZ7x8ODQjFr9KnVc4ym2iijnd91h5jDyJFYrbO+dwnF0IbTM7oAx8kF59/4+73 XIK0X5ERfdgm3GvGcMlTVFM/4vi0/2fehVHAmXzUxCeti2YmA8LDpAiEfIsZ2avrpiBuh sAccq2POPLSCONTYXfgk3co4VwumpmGs4aHcXH/Pul1IsK3QXJWvlgsc7Q+K9cGv/W1Gh Ifba1OPtF6RDCNlalFzPddOSPwieXs1EBnactpc7BLagXO8JNy+eSAZOEbjOKdNiMdQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.remote-ip=209.85.210.70 Received: from mail-ot1-f70.google.com (mail-ot1-f70.google.com [209.85.210.70]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 48479606A31E for ; Mon, 19 Oct 2026 23:12:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 48479606A31E Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-ot1-f70.google.com with SMTP id 46e09a7af769-81447a16061so6020978a34.3 for ; Mon, 19 Oct 2026 16:12:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792451550; x=1793056350; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=AWMwpb1c3GewdK0NA9FnsQ5ripekQjx/SitnL4ttYRE=; b=Ipmrizg8fw0Ugbgah25FgjeXj59NeOCqI+xOhT/RaxEs3TpydSKS1TTs1lL1q5h1Vt 6Z7K0sfiy7m6apU9o59LXuxZs43vo8fzwKJ6QBjTWqY96mr2B5zEJ10AVjeeE9KbPIv9 OGbHYm+AlT20NMZuuuGpaXxDabErJmrvhjJ5qDXnxhGey42kFaM1fIXzKhbSN2YqadD/ vRW3zhpbxn6RLMy+E/RZmHEGGb8WkFmDr1LJ7vK288lkx8V+xrFY6pBWhYjJurGSePgT QnYHxUf4TlIdUmQkptsuQ60SjhHqGJLNdlNQ5md6dMmt+iCmMPXEymuBe6vnF4RxKxa2 8lhQ== X-Forwarded-Encrypted: i=1; AKwUvBxUbvEWvh9PTn6ZylZnw1pSdk79CBCNxoHAB/6kH6t1uVVsfwcoXyaoC1WJebxfAezf0UFweWTIOi95PL8=@vger.kernel.org X-Gm-Message-State: AFq9FYLkUe8d2K414YwONNjqOYPP6yfLZ70KeUQlfHYC4WUM0KDh3ucb jumOes6BrgwBaiTLaX2PDGcvnY7az8AE3qy6cHT7wa14nDhh3fUg0KLvFvbClvg7VuUk42uMv6k /89eN4NLUQ9eZB0vwlAuetrfINKhw+b1x0gPTRLuiZ8aJ5GAUD8M1qAORm6c= X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-Received: by 2002:a05:6808:1823:b0:4f3:e98f:fa1d with SMTP id 5614622812f47-53cc5b5ba97mr9812625b6e.9.1792451550302; Mon, 19 Oct 2026 16:12:30 -0700 (PDT) Date: Mon, 19 Oct 2026 16:12:30 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ad6a3de.f84f00d0.6bdd.000e.GAE@google.com> Subject: [syzbot] [jfs] WARNING in file_remove_privs_flags From: syzbot To: brauner@kernel.org, jack@suse.cz, jfs-discussion@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, shaggy@kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 32c52ec87d62 x86/insn-eval: Fix shadowed segment index in .. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1308b20d580000 kernel config: https://syzkaller.appspot.com/x/.config?x=b38d39c45202f4fa dashboard link: https://syzkaller.appspot.com/bug?extid=11df51d643e254ef16bb compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/77ec099385a8/disk-32c52ec8.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/f5adfb921648/vmlinux-32c52ec8.xz kernel image: https://storage.googleapis.com/syzbot-assets/65b38cab4ac2/bzImage-32c52ec8.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+11df51d643e254ef16bb@syzkaller.appspotmail.com ------------[ cut here ]------------ d_inode(dentry) != file_inode(file) WARNING: ./include/linux/fs.h:1363 at file_dentry include/linux/fs.h:1363 [inline], CPU#1: kworker/u8:2/48 WARNING: ./include/linux/fs.h:1363 at file_remove_privs_flags+0x556/0x610 fs/inode.c:2373, CPU#1: kworker/u8:2/48 Modules linked in: CPU: 1 UID: 0 PID: 48 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Workqueue: loop0 loop_workfn RIP: 0010:file_dentry include/linux/fs.h:1363 [inline] RIP: 0010:file_remove_privs_flags+0x556/0x610 fs/inode.c:2373 Code: 00 75 4d 44 89 e8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 1b 61 13 09 cc e8 75 d0 7b ff e9 a5 fe ff ff e8 6b d0 7b ff 90 <0f> 0b 90 e9 b0 fb ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c d9 RSP: 0018:ffffc90000ba7480 EFLAGS: 00010293 RAX: ffffffff824b0995 RBX: ffff8880317652a0 RCX: ffff88801e689f40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000ba75d8 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff2164770 R12: 0000000000000000 R13: 1ffff110062eca54 R14: 1ffff11007ff35fc R15: 1ffff92000174e9c FS: 0000000000000000(0000) GS:ffff888124abb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc491220d8 CR3: 0000000043560000 CR4: 00000000003526f0 Call Trace: shmem_file_write_iter+0xaa/0x120 mm/shmem.c:3437 lo_rw_aio+0xc78/0xf30 include/linux/percpu-rwsem.h:-1 do_req_filebacked drivers/block/loop.c:430 [inline] loop_handle_cmd drivers/block/loop.c:1949 [inline] loop_process_work+0x638/0x11d0 drivers/block/loop.c:1984 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560 kthread+0x38b/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 --- 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 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