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AJvYcCVDduwYGKVqaWYbyatciUNAVgbeNdqoeyLze6hQLDQqc7fd53tTo/ouOgGdVVIvdXdzvb77CQ==@lists.linux.dev X-Gm-Message-State: AOJu0YzBy/kkfx8O33BZFUrBtHnTYqYjmw4Gw4c79UbcsZkpL4P8de0y sl3NvA9NOOHfsAa1wrR4h/cwjKuyoc7FVM8kBrcmTewPfidyFI01RrbPMPjGUwRNReIs5uvWBWa 203KJV3qUXn33sWWAVYs7Ch+chyVKz7E75W01xIdTrOfSVcgbtL2nXcbuNF4= X-Google-Smtp-Source: AGHT+IGVJXZC0Ra5LNTx5+cgnwJVeBORWoEgpnGTfQdjWrHe9773cpQX4lgXsDhBEx6hvLkr3H95abs9LgrHjpdYsJLcbhVcAlmo Precedence: bulk X-Mailing-List: ntfs3@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:4602:b0:430:b32d:c1a1 with SMTP id e9e14a558f8ab-432f8f87244mr16541865ab.7.1761696753493; Tue, 28 Oct 2025 17:12:33 -0700 (PDT) Date: Tue, 28 Oct 2025 17:12:33 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69015bf1.050a0220.3344a1.03f7.GAE@google.com> Subject: [syzbot] [ntfs3?] WARNING in ntfs_put_super From: syzbot To: almaz.alexandrovich@paragon-software.com, linux-kernel@vger.kernel.org, ntfs3@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: f7d2388eeec2 Add linux-next specific files for 20251028 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=12169f34580000 kernel config: https://syzkaller.appspot.com/x/.config?x=ecdce5bceba74f dashboard link: https://syzkaller.appspot.com/bug?extid=cc433e4cd6d54736bf80 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13dedfe2580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15eaf614580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/8aa0aaa475d1/disk-f7d2388e.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/fc97cba5a8b0/vmlinux-f7d2388e.xz kernel image: https://storage.googleapis.com/syzbot-assets/30e4617d837c/bzImage-f7d2388e.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/4f46697dcc18/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+cc433e4cd6d54736bf80@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: mm/slub.c:6752 at free_large_kmalloc+0x15c/0x1f0 mm/slub.c:6752, CPU#1: syz-executor/5941 Modules linked in: CPU: 1 UID: 0 PID: 5941 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:free_large_kmalloc+0x15c/0x1f0 mm/slub.c:6752 Code: 44 89 f6 e8 16 d1 fc ff 65 48 8b 05 1e c3 57 10 48 3b 44 24 08 75 57 48 83 c4 10 5b 41 5c 41 5e 41 5f 5d e9 86 7b 3b 09 cc 90 <0f> 0b 90 65 48 8b 05 f9 c2 57 10 48 3b 44 24 08 75 32 48 89 df 48 RSP: 0018:ffffc900037ffc88 EFLAGS: 00010206 RAX: 00000000ff000000 RBX: ffffea0000389440 RCX: ffffea0000389448 RDX: 0000000000000000 RSI: ffffffff8e251920 RDI: ffffea0000389440 RBP: 1ffff1100f55d143 R08: ffffffff8f7d5a77 R09: 1ffffffff1efab4e R10: dffffc0000000000 R11: fffffbfff1efab4f R12: 1ffff1100f55d136 R13: dffffc0000000000 R14: ffff88807aae89b0 R15: ffff8880793b0ec8 FS: 000055557fea9500(0000) GS:ffff888125feb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055557fec45c8 CR3: 0000000029608000 CR4: 00000000003526f0 Call Trace: ntfs_put_super+0x15b/0x1b0 fs/ntfs3/super.c:708 generic_shutdown_super+0x135/0x2c0 fs/super.c:642 kill_block_super+0x44/0x90 fs/super.c:1722 ntfs3_kill_sb+0x44/0x1b0 fs/ntfs3/super.c:1847 deactivate_locked_super+0xbc/0x130 fs/super.c:473 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1327 task_work_run+0x1d4/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xe9/0x130 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2e3c7902f7 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffcc218b908 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f2e3c811d7d RCX: 00007f2e3c7902f7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcc218b9c0 RBP: 00007ffcc218b9c0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcc218ca50 R13: 00007f2e3c811d7d R14: 0000000000019cb4 R15: 00007ffcc218ca90 --- 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