syzbot


BUG: unable to handle kernel paging request in ntfs_fill_super

Status: auto-obsoleted due to no activity on 2024/04/23 01:51
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+3b3963b76bd3a7c96a6d@syzkaller.appspotmail.com
First crash: 152d, last: 152d
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: unable to handle kernel paging request in ntfs_fill_super (2) mm 3 16d 47d 0/27 moderation: reported on 2024/05/08 13:49
upstream KASAN: slab-out-of-bounds Read in ntfs_fill_super ntfs3 C error unreliable 128 256d 632d 0/27 auto-obsoleted due to no activity on 2023/12/21 03:26

Sample crash report:
BUG: unable to handle page fault for address: fffffffd8928478d
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD cf7b067 P4D cf7b067 PUD 0 
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 3 PID: 9441 Comm: syz-executor.2 Not tainted 6.8.0-rc1-syzkaller-00026-g7ed2632ec7d7 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:alloc_pages_mpol+0x257/0x5f0 mm/mempolicy.c:2133
Code: 00 44 89 fe e8 da d4 aa ff 45 85 ff 75 05 45 31 ff eb 5f e8 5b d9 aa ff 8b 54 24 58 44 89 e6 44 89 ef 48 8b 0c 24 e8 58 8f f7 <ff> 4c 89 f2 48 c1 ea 03 49 89 c7 48 b8 00 00 00 00 00 fc ff df 0f
RSP: 0018:ffffc900200c7880 EFLAGS: 00010286
RAX: ffffea0001510dc0 RBX: 1ffff92004018f13 RCX: ffffffff81d4db1f
RDX: 0000000000000000 RSI: ffffffff8b2fd300 RDI: ffffffff8ca98a78
RBP: ffffffff92a50800 R08: 0000000000000000 R09: fffffbfff1e75d62
R10: ffffffff8f3aeb17 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000140cca R14: ffffffff92a50804 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802c900000(0063) knlGS:00000000f7f5ab40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: fffffffd8928478d CR3: 000000001c82c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 folio_alloc+0x1e/0xe0 mm/mempolicy.c:2211
 filemap_alloc_folio+0x3bb/0x490 mm/filemap.c:975
 do_read_cache_folio+0x1b8/0x540 mm/filemap.c:3667
 do_read_cache_page mm/filemap.c:3769 [inline]
 read_cache_page+0x5b/0x160 mm/filemap.c:3778
 read_mapping_page include/linux/pagemap.h:888 [inline]
 ntfs_map_page fs/ntfs3/ntfs_fs.h:915 [inline]
 ntfs_fill_super+0x39ba/0x4490 fs/ntfs3/super.c:1485
 get_tree_bdev+0x36b/0x600 fs/super.c:1619
 vfs_get_tree+0x8c/0x370 fs/super.c:1784
 do_new_mount fs/namespace.c:3352 [inline]
 path_mount+0x14e6/0x1f20 fs/namespace.c:3679
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount fs/namespace.c:3875 [inline]
 __ia32_sys_mount+0x291/0x310 fs/namespace.c:3875
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0x79/0x110 arch/x86/entry/common.c:321
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:346
 entry_SYSENTER_compat_after_hwframe+0x70/0x7a
RIP: 0023:0xf7f5f579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f7f5a400 EFLAGS: 00000292 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 00000000f7f5a460 RCX: 0000000020000200
RDX: 0000000020000040 RSI: 000000000000c040 RDI: 00000000f7f5a4a0
RBP: 00000000f7f5a460 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
CR2: fffffffd8928478d
---[ end trace 0000000000000000 ]---
RIP: 0010:alloc_pages_mpol+0x257/0x5f0 mm/mempolicy.c:2133
Code: 00 44 89 fe e8 da d4 aa ff 45 85 ff 75 05 45 31 ff eb 5f e8 5b d9 aa ff 8b 54 24 58 44 89 e6 44 89 ef 48 8b 0c 24 e8 58 8f f7 <ff> 4c 89 f2 48 c1 ea 03 49 89 c7 48 b8 00 00 00 00 00 fc ff df 0f
RSP: 0018:ffffc900200c7880 EFLAGS: 00010286
RAX: ffffea0001510dc0 RBX: 1ffff92004018f13 RCX: ffffffff81d4db1f
RDX: 0000000000000000 RSI: ffffffff8b2fd300 RDI: ffffffff8ca98a78
RBP: ffffffff92a50800 R08: 0000000000000000 R09: fffffbfff1e75d62
R10: ffffffff8f3aeb17 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000140cca R14: ffffffff92a50804 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802c900000(0063) knlGS:00000000f7f5ab40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: fffffffd8928478d CR3: 000000001c82c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	10 06                	adc    %al,(%rsi)
   2:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   6:	10 07                	adc    %al,(%rdi)
   8:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   c:	10 08                	adc    %cl,(%rax)
   e:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  1e:	00 51 52             	add    %dl,0x52(%rcx)
  21:	55                   	push   %rbp
  22:	89 e5                	mov    %esp,%ebp
  24:	0f 34                	sysenter
  26:	cd 80                	int    $0x80
* 28:	5d                   	pop    %rbp <-- trapping instruction
  29:	5a                   	pop    %rdx
  2a:	59                   	pop    %rcx
  2b:	c3                   	ret
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	90                   	nop
  2f:	90                   	nop
  30:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/01/24 01:51 upstream 7ed2632ec7d7 1e153dc8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 BUG: unable to handle kernel paging request in ntfs_fill_super
* Struck through repros no longer work on HEAD.