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BUG: unable to handle kernel NULL pointer dereference in __d_instantiate

Status: upstream: reported C repro on 2022/09/13 19:51
Subsystems: ntfs3
[Documentation on labels]
Reported-by: syzbot+29dc75ed37be943c610e@syzkaller.appspotmail.com
First crash: 442d, last: 148d
Cause bisection: failed (error log, bisect log)
  
Fix bisection: fixed by (bisect log) :
commit 54e45702b648b7c0000e90b3e9b890e367e16ea8
Author: Edward Lo <edward.lo@ambergroup.io>
Date: Thu Sep 22 16:50:23 2022 +0000

  fs/ntfs3: Validate resident attribute name

  
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] BUG: unable to handle kernel NULL pointer dereference in __d_instantiate 2 (4) 2023/09/15 19:01
▶ ▼ Last patch testing requests (8)
Created Duration User Patch Repo Result
2023/11/07 03:14 40m retest repro upstream report log
2023/09/13 17:34 14m retest repro upstream report log
2023/08/29 01:31 18m retest repro upstream report log
2023/08/29 01:31 19m retest repro upstream OK log
2023/08/23 23:17 23m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2023/08/23 23:17 30m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2023/08/23 23:17 35m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2023/08/23 23:17 29m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
▶ ▼ Fix bisection attempts (7)
Created Duration User Patch Repo Result
2023/09/15 14:24 4h34m bisect fix upstream job log (1)
2023/07/05 11:27 1h35m bisect fix upstream job log (0) log
2023/06/02 21:20 55m bisect fix upstream job log (0) log
2023/05/03 18:49 1h19m bisect fix upstream job log (0) log
2023/04/03 08:10 45m bisect fix upstream job log (0) log
2023/03/04 07:15 53m bisect fix upstream job log (0) log
2023/02/02 05:26 40m bisect fix upstream job log (0) log

Sample crash report:
ntfs3: loop0: RAW NTFS volume: Filesystem size 0.00 Gb > volume size 0.00 Gb. Mount in read-only
ntfs3: loop0: failed to read volume at offset 0x120000
ntfs3: loop0: Failed to load $Extend.
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 3607 Comm: syz-executor142 Not tainted 6.0.0-rc7-syzkaller-00250-ga962b54e162c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:d_flags_for_inode fs/dcache.c:1980 [inline]
RIP: 0010:__d_instantiate+0x4fe/0x720 fs/dcache.c:1998
Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 6a 19 eb ff 48 8b 1b 48 83 c3 08 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 44 19 eb ff 48 83 3b 00 0f 85 aa 01
RSP: 0018:ffffc9000393fa68 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: dffffc0000000000
RDX: ffff888077dabb00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81ef6052 R09: fffff52000727f48
R10: fffff52000727f49 R11: 1ffff92000727f48 R12: 1ffff1100e89fa6e
R13: ffff8880124e31a0 R14: 0000000000000008 R15: ffff8880744fd372
FS:  0000555556e6b300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffab8e6000 CR3: 0000000077784000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 d_instantiate fs/dcache.c:2036 [inline]
 d_make_root+0x9b/0xd0 fs/dcache.c:2071
 ntfs_fill_super+0x3ed6/0x42a0 fs/ntfs3/super.c:1269
 get_tree_bdev+0x400/0x620 fs/super.c:1323
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x289/0xad0 fs/namespace.c:3040
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6ac5b4272a
Code: 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 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffab8e5778 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6ac5b4272a
RDX: 0000000020000040 RSI: 0000000020000100 RDI: 00007fffab8e5790
RBP: 00007fffab8e5790 R08: 00007fffab8e57d0 R09: 0000555556e6b2c0
R10: 0000000000000400 R11: 0000000000000286 R12: 0000000000000004
R13: 00007fffab8e57d0 R14: 0000000000000015 R15: 00000000200003f8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:d_flags_for_inode fs/dcache.c:1980 [inline]
RIP: 0010:__d_instantiate+0x4fe/0x720 fs/dcache.c:1998
Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 6a 19 eb ff 48 8b 1b 48 83 c3 08 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 44 19 eb ff 48 83 3b 00 0f 85 aa 01
RSP: 0018:ffffc9000393fa68 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: dffffc0000000000
RDX: ffff888077dabb00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81ef6052 R09: fffff52000727f48
R10: fffff52000727f49 R11: 1ffff92000727f48 R12: 1ffff1100e89fa6e
R13: ffff8880124e31a0 R14: 0000000000000008 R15: ffff8880744fd372
FS:  0000555556e6b300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffab8e6000 CR3: 0000000077784000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 3 bytes skipped:
   0:	df 80 3c 08 00 74    	filds  0x7400083c(%rax)
   6:	08 48 89             	or     %cl,-0x77(%rax)
   9:	df e8                	fucomip %st(0),%st
   b:	6a 19                	pushq  $0x19
   d:	eb ff                	jmp    0xe
   f:	48 8b 1b             	mov    (%rbx),%rbx
  12:	48 83 c3 08          	add    $0x8,%rbx
  16:	48 89 d8             	mov    %rbx,%rax
  19:	48 c1 e8 03          	shr    $0x3,%rax
  1d:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  24:	fc ff df
* 27:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2b:	74 08                	je     0x35
  2d:	48 89 df             	mov    %rbx,%rdi
  30:	e8 44 19 eb ff       	callq  0xffeb1979
  35:	48 83 3b 00          	cmpq   $0x0,(%rbx)
  39:	0f                   	.byte 0xf
  3a:	85                   	.byte 0x85
  3b:	aa                   	stos   %al,%es:(%rdi)
  3c:	01                   	.byte 0x1

Crashes (84):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/10/03 09:13 upstream a962b54e162c feb56351 .config strace log report syz C [disk image] [vmlinux] ci2-upstream-fs general protection fault in __d_instantiate
2022/12/18 20:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 05494336 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/10/02 21:02 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 feb56351 .config console log report syz C [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/09/24 21:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c194837ebb57 0042f2b4 .config console log report syz C [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/09/13 15:44 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a6b443748715 a08652b0 .config console log report syz C [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/12/18 08:50 upstream f9ff5644bcc0 05494336 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs general protection fault in __d_instantiate
2022/09/25 02:07 upstream 3db61221f4e8 0042f2b4 .config strace log report syz C ci2-upstream-fs general protection fault in __d_instantiate
2022/12/29 10:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/12/18 04:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 05494336 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/11/15 04:53 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9e4ce762f0e7 943f4cb8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/11/12 15:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1621b6eaebf7 3ead01ad .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/11/11 04:18 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1621b6eaebf7 3ead01ad .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/10/01 03:09 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 feb56351 .config console log report info [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/09/26 14:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c194837ebb57 d59ba983 .config console log report info [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/09/21 17:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 4a4a085d97ce 380f82fb .config console log report info [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/09/19 11:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a6b443748715 dd9a85ff .config console log report info [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/09/19 08:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a6b443748715 dd9a85ff .config console log report info [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/09/17 22:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a6b443748715 dd9a85ff .config console log report info [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/09/13 15:19 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a6b443748715 a08652b0 .config console log report info [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: unable to handle kernel NULL pointer dereference in __d_instantiate
2022/12/19 13:03 upstream f9ff5644bcc0 05494336 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in __d_instantiate
2022/12/05 17:55 upstream 76dcd734eca2 045cbb84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/21 08:12 upstream eb7081409f94 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/21 06:25 upstream eb7081409f94 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/20 11:34 upstream fe24a97cf254 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/20 03:39 upstream fe24a97cf254 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/19 14:28 upstream ab290eaddc4c 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/19 05:52 upstream ab290eaddc4c 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/18 14:03 upstream 84368d882b96 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/18 02:50 upstream 81ac25651a62 4ba8ab94 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/17 13:56 upstream cc675d22e422 3a127a31 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/16 19:43 upstream 59d0d52c30d4 3a127a31 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/16 00:53 upstream 81e7cfa3a9eb 3a127a31 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/15 12:23 upstream e01d50cbd6ee 97de9cfc .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/14 21:09 upstream 094226ad94f4 943f4cb8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/14 17:34 upstream 094226ad94f4 943f4cb8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/14 06:15 upstream af7a05689189 7ba4d859 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/13 22:50 upstream af7a05689189 7ba4d859 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/13 12:07 upstream fef7fd48922d f42ee5d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/12 11:02 upstream 8f2975c2bb4c f42ee5d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/10 22:16 upstream 1767a722a708 3ead01ad .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/09 21:53 upstream f141df371335 bebca8b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/09 12:49 upstream f141df371335 5fa28208 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/08 19:09 upstream 59f2f4b8a757 060f945e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/08 13:51 upstream 59f2f4b8a757 060f945e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/06 15:46 upstream b208b9fbbcba 6d752409 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/04 22:07 upstream ee6050c8af96 6d752409 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/04 18:12 upstream ee6050c8af96 6d752409 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/04 13:04 upstream ee6050c8af96 6d752409 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/03 09:52 upstream b229b6ca5abb 7a2ebf95 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/03 08:47 upstream b229b6ca5abb 7a2ebf95 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/02 23:55 upstream b229b6ca5abb 08977f5d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/02 04:55 upstream b229b6ca5abb 08977f5d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/11/01 07:12 upstream b229b6ca5abb a1d8560a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/10/31 01:30 upstream b229b6ca5abb 2a71366b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/10/26 22:10 upstream 4dc12f37a8e9 86777b7f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs general protection fault in __d_instantiate
2022/10/26 08:57 upstream 4dc12f37a8e9 1984aebd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in __d_instantiate
2022/10/25 04:52 upstream 337a0a0b63f1 45645420 .config console log report info [disk image] [vmlinux] ci2-upstream-fs general protection fault in __d_instantiate
2022/10/23 23:29 upstream d47136c28015 23bf86af .config console log report info [disk image] [vmlinux] ci2-upstream-fs general protection fault in __d_instantiate
2022/10/23 16:59 upstream d47136c28015 23bf86af .config console log report info [disk image] [vmlinux] ci2-upstream-fs general protection fault in __d_instantiate
2022/10/01 16:03 upstream ffb4d94b4314 feb56351 .config console log report info [disk image] [vmlinux] ci2-upstream-fs general protection fault in __d_instantiate
2022/09/29 19:47 upstream c3e0e1e23c70 45fd7169 .config console log report info [disk image] [vmlinux] ci2-upstream-fs general protection fault in __d_instantiate
* Struck through repros no longer work on HEAD.