linux-kernel - [syzbot] [ntfs3?] BUG: unable to handle kernel paging request in evict (2)

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Message-ID: <674413dc.050a0220.1cc393.0062.GAE@google.com>
Date: Sun, 24 Nov 2024 22:06:20 -0800
From: syzbot <syzbot+34226167ebf8da2171a9@...kaller.appspotmail.com>
To: almaz.alexandrovich@...agon-software.com, brauner@...nel.org, jack@...e.cz, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	ntfs3@...ts.linux.dev, syzkaller-bugs@...glegroups.com, 
	viro@...iv.linux.org.uk
Subject: [syzbot] [ntfs3?] BUG: unable to handle kernel paging request in
 evict (2)

Hello,

syzbot found the following issue on:

HEAD commit:    9f16d5e6f220 Merge tag 'for-linus' of git://git.kernel.org..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=14c5a530580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e92fc420ca55fe33
dashboard link: https://syzkaller.appspot.com/bug?extid=34226167ebf8da2171a9
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=164fc778580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=103725c0580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/c9f905470542/disk-9f16d5e6.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/5b4c9cc530ec/vmlinux-9f16d5e6.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e0f262e4c35e/bzImage-9f16d5e6.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/3621c08f2ff6/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+34226167ebf8da2171a9@...kaller.appspotmail.com

Oops: general protection fault, probably for non-canonical address 0xdffffc0100000001: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: probably user-memory-access in range [0x0000000800000008-0x000000080000000f]
CPU: 0 UID: 0 PID: 5831 Comm: syz-executor339 Not tainted 6.12.0-syzkaller-09073-g9f16d5e6f220 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__hlist_del include/linux/list.h:990 [inline]
RIP: 0010:hlist_del_init_rcu include/linux/rculist.h:184 [inline]
RIP: 0010:__remove_inode_hash fs/inode.c:671 [inline]
RIP: 0010:remove_inode_hash include/linux/fs.h:3226 [inline]
RIP: 0010:evict+0x64f/0x9a0 fs/inode.c:804
Code: 4c 89 ff e8 b3 23 e5 ff 4d 89 27 4d 85 e4 74 61 e8 b6 6b 7d ff 49 83 c4 08 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 e7 e8 83 23 e5 ff 4d 89 3c 24 eb 38 e8 88
RSP: 0018:ffffc90003df7b00 EFLAGS: 00010202
RAX: 0000000100000001 RBX: 1ffff1100ee5d305 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90003df7a80
RBP: ffffc90003df7c30 R08: 0000000000000003 R09: fffff520007bef50
R10: dffffc0000000000 R11: fffff520007bef50 R12: 0000000800000008
R13: ffff8880772e9720 R14: ffff8880772e9828 R15: ffffc90000c35860
FS:  0000555577e623c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555577e6b738 CR3: 0000000075cf6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dispose_list fs/inode.c:845 [inline]
 evict_inodes+0x6f6/0x790 fs/inode.c:899
 generic_shutdown_super+0xa0/0x2d0 fs/super.c:627
 kill_block_super+0x44/0x90 fs/super.c:1710
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0cfeb244a7
Code: 08 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff0d0cb848 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f0cfeb244a7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff0d0cb900
RBP: 00007fff0d0cb900 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff0d0cc9c0
R13: 0000555577e63700 R14: 431bde82d7b634db R15: 00007fff0d0cc964
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__hlist_del include/linux/list.h:990 [inline]
RIP: 0010:hlist_del_init_rcu include/linux/rculist.h:184 [inline]
RIP: 0010:__remove_inode_hash fs/inode.c:671 [inline]
RIP: 0010:remove_inode_hash include/linux/fs.h:3226 [inline]
RIP: 0010:evict+0x64f/0x9a0 fs/inode.c:804
Code: 4c 89 ff e8 b3 23 e5 ff 4d 89 27 4d 85 e4 74 61 e8 b6 6b 7d ff 49 83 c4 08 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 e7 e8 83 23 e5 ff 4d 89 3c 24 eb 38 e8 88
RSP: 0018:ffffc90003df7b00 EFLAGS: 00010202
RAX: 0000000100000001 RBX: 1ffff1100ee5d305 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90003df7a80
RBP: ffffc90003df7c30 R08: 0000000000000003 R09: fffff520007bef50
R10: dffffc0000000000 R11: fffff520007bef50 R12: 0000000800000008
R13: ffff8880772e9720 R14: ffff8880772e9828 R15: ffffc90000c35860
FS:  0000555577e623c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555577e6b738 CR3: 0000000075cf6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	4c 89 ff             	mov    %r15,%rdi
   3:	e8 b3 23 e5 ff       	call   0xffe523bb
   8:	4d 89 27             	mov    %r12,(%r15)
   b:	4d 85 e4             	test   %r12,%r12
   e:	74 61                	je     0x71
  10:	e8 b6 6b 7d ff       	call   0xff7d6bcb
  15:	49 83 c4 08          	add    $0x8,%r12
  19:	4c 89 e0             	mov    %r12,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  27:	fc ff df
* 2a:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 e7             	mov    %r12,%rdi
  33:	e8 83 23 e5 ff       	call   0xffe523bb
  38:	4d 89 3c 24          	mov    %r15,(%r12)
  3c:	eb 38                	jmp    0x76
  3e:	e8                   	.byte 0xe8
  3f:	88                   	.byte 0x88


---
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