syzbot


WARNING: locking bug in ntfs_fill_super (2)

Status: upstream: reported on 2024/10/24 18:52
Subsystems: ntfs3
[Documentation on labels]
Reported-by: syzbot+b856fe782caf1f85be6e@syzkaller.appspotmail.com
First crash: 31d, last: 1d05h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [ntfs3?] WARNING: locking bug in ntfs_fill_super (2) 0 (1) 2024/10/24 18:52
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING: locking bug in ntfs_fill_super 2 127d 167d 0/3 auto-obsoleted due to no activity on 2024/10/24 21:48
upstream WARNING: locking bug in ntfs_fill_super ntfs3 C 5 509d 777d 0/28 auto-obsoleted due to no activity on 2023/11/12 18:09

Sample crash report:
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 1 PID: 5996 at kernel/locking/lockdep.c:232 hlock_class kernel/locking/lockdep.c:232 [inline]
WARNING: CPU: 1 PID: 5996 at kernel/locking/lockdep.c:232 __lock_acquire+0x1345/0x2050 kernel/locking/lockdep.c:5199
Modules linked in:
CPU: 1 UID: 0 PID: 5996 Comm: syz.3.17 Not tainted 6.12.0-syzkaller-00971-g158f238aa69d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:hlock_class kernel/locking/lockdep.c:232 [inline]
RIP: 0010:__lock_acquire+0x1345/0x2050 kernel/locking/lockdep.c:5199
Code: 00 00 83 3d 30 12 ac 0e 00 75 23 90 48 c7 c7 a0 ca 0a 8c 48 c7 c6 40 cd 0a 8c e8 96 6c e5 ff 48 ba 00 00 00 00 00 fc ff df 90 <0f> 0b 90 90 90 31 db 48 83 c3 40 48 89 d8 48 c1 e8 03 80 3c 10 00
RSP: 0018:ffffc90004abf650 EFLAGS: 00010046
RAX: ecd971f3cba47e00 RBX: 0000000000000f00 RCX: 0000000000040000
RDX: dffffc0000000000 RSI: 000000000000c1ed RDI: 000000000000c1ee
RBP: 6b6fb36e499d1b61 R08: ffffffff8155e222 R09: 1ffffffff1d02a94
R10: dffffc0000000000 R11: fffffbfff1d02a95 R12: 0000000000000000
R13: ffff888025c6a8d8 R14: 1ffff11004b8d525 R15: ffff888025c6a928
FS:  00007fbc102d76c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc72c77e4c CR3: 0000000034694000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 iput_final fs/inode.c:1936 [inline]
 iput+0x615/0xa50 fs/inode.c:1973
 ntfs_fill_super+0x3e27/0x4730 fs/ntfs3/super.c:1472
 get_tree_bdev_flags+0x48c/0x5c0 fs/super.c:1636
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbc0f57fefa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbc102d6e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbc102d6ef0 RCX: 00007fbc0f57fefa
RDX: 000000002001f800 RSI: 0000000020000000 RDI: 00007fbc102d6eb0
RBP: 000000002001f800 R08: 00007fbc102d6ef0 R09: 0000000001808840
R10: 0000000001808840 R11: 0000000000000246 R12: 0000000020000000
R13: 00007fbc102d6eb0 R14: 000000000001f86a R15: 0000000020000080
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/20 00:38 upstream 158f238aa69d 7d02db5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING: locking bug in ntfs_fill_super
2024/10/20 18:43 upstream 715ca9dd687f cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING: locking bug in ntfs_fill_super
* Struck through repros no longer work on HEAD.