syzbot


WARNING in ntfs_put_super

Status: upstream: reported C repro on 2025/10/29 00:12
Subsystems: ntfs3
[Documentation on labels]
Reported-by: syzbot+cc433e4cd6d54736bf80@syzkaller.appspotmail.com
First crash: 1d09h, last: now
Discussions (2)
Title Replies (including bot) Last reply
[PATCH next] ntfs3: Remove redundant nls free 1 (1) 2025/10/29 06:03
[syzbot] [ntfs3?] WARNING in ntfs_put_super 0 (1) 2025/10/29 00:12
Cause bisection attempts (1)
Created Duration User Patch Repo Result
2025/10/29 04:07 bisect linux-next running

Sample crash report:
------------[ cut here ]------------
WARNING: mm/slub.c:6752 at free_large_kmalloc+0x15c/0x1f0 mm/slub.c:6752, CPU#1: syz-executor/5939
Modules linked in:
CPU: 1 UID: 0 PID: 5939 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:ffffc90003ecfc88 EFLAGS: 00010206
RAX: 00000000ff000000 RBX: ffffea0000389000 RCX: ffffea0000389008
RDX: 0000000000000000 RSI: ffffffff8e240de0 RDI: ffffea0000389000
RBP: 1ffff11006535543 R08: ffffffff8f7d5a77 R09: 1ffffffff1efab4e
R10: dffffc0000000000 R11: fffffbfff1efab4f R12: 1ffff11006535536
R13: dffffc0000000000 R14: ffff8880329aa9b0 R15: ffff88807d795a08
FS:  000055557b472500(0000) GS:ffff888125feb000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557b48d5c8 CR3: 00000000335ce000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 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: 0033:0x7fe7f49902f7
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:00007ffe22c77a18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fe7f4a11d7d RCX: 00007fe7f49902f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe22c77ad0
RBP: 00007ffe22c77ad0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe22c78b60
R13: 00007fe7f4a11d7d R14: 0000000000014d86 R15: 00007ffe22c78ba0
 </TASK>

Crashes (3996):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/10/29 02:22 linux-next f7d2388eeec2 fd2207e7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 01:15 linux-next f7d2388eeec2 fd2207e7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/28 23:48 linux-next f7d2388eeec2 fd2207e7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/28 22:21 linux-next f7d2388eeec2 fd2207e7 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 14:04 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 13:55 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 13:42 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 13:28 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 13:18 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 13:03 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 12:52 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 12:40 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 12:09 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 11:56 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 11:50 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 11:38 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 11:30 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 11:21 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 11:13 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 11:06 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 10:58 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 10:50 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 10:43 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 10:36 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 10:28 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 10:22 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 10:15 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 10:08 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 10:01 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 09:51 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 09:45 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 09:38 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 09:31 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 09:22 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 09:13 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 09:05 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 08:56 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 08:49 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 08:42 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 08:35 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 08:29 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 08:23 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 08:16 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 08:09 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 08:02 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
2025/10/29 07:56 linux-next f9ba12abc528 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ntfs_put_super
* Struck through repros no longer work on HEAD.