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KASAN: slab-out-of-bounds Read in ntfs_readdir

Status: upstream: reported C repro on 2023/04/27 08:51
Bug presence: origin:lts-only
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+7785fc7a8e502ab7376d@syzkaller.appspotmail.com
First crash: 592d, last: 35d
Fix commit to backport (bisect log) :
tree: upstream
commit 7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89
Author: Matthew Wilcox (Oracle) <willy@infradead.org>
Date: Mon Jan 15 07:20:25 2024 +0000

  fs: Remove NTFS classic

  
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2024/11/03 linux-5.15.y (ToT) 72244eab0dad C [report] KASAN: slab-out-of-bounds Read in ntfs_readdir
2024/11/03 upstream (ToT) 3e5e6c9900c3 C Didn't crash
▶ ▼ Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 KASAN: slab-out-of-bounds Read in ntfs_readdir ntfs C error 1 705d 705d 0/1 upstream: reported C repro on 2023/01/04 05:55
linux-4.14 KASAN: slab-out-of-bounds Read in ntfs_readdir ntfs C 1 645d 708d 0/1 upstream: reported C repro on 2022/12/31 19:18
upstream KASAN: slab-out-of-bounds Read in ntfs_readdir ntfs3 C error error 507 252d 712d 0/28 auto-obsoleted due to no activity on 2024/06/09 18:46
linux-6.1 KASAN: slab-out-of-bounds Read in ntfs_readdir origin:upstream missing-backport C done 63 186d 550d 0/3 upstream: reported C repro on 2023/06/07 15:22
▶ ▼ Last patch testing requests (7)
Created Duration User Patch Repo Result
2024/10/23 17:49 13m retest repro linux-5.15.y report log
2024/10/23 17:49 14m retest repro linux-5.15.y report log
2024/10/08 07:25 12m retest repro linux-5.15.y report log
2024/10/08 07:25 9m retest repro linux-5.15.y report log
2024/10/08 07:25 18m retest repro linux-5.15.y report log
2024/10/08 07:25 11m retest repro linux-5.15.y report log
2024/10/08 07:25 9m retest repro linux-5.15.y report log
▶ ▼ Fix bisection attempts (4)
Created Duration User Patch Repo Result
2024/11/18 12:55 4h36m fix candidate upstream OK (1) job log
2024/08/30 14:35 2m fix candidate upstream error job log
2024/06/13 12:35 0m fix candidate upstream error job log
2023/09/27 06:26 0m bisect fix linux-5.15.y error job log

Sample crash report:
ntfs: volume version 3.1.
ntfs: (device loop0): ntfs_lookup_inode_by_name(): Corrupt directory.  Aborting lookup.
ntfs: (device loop0): check_windows_hibernation_status(): Failed to find inode number for hiberfil.sys.
ntfs: (device loop0): load_system_files(): Failed to determine if Windows is hibernated.  Will not be able to remount read-write.  Run chkdsk.
==================================================================
BUG: KASAN: slab-out-of-bounds in ntfs_filldir fs/ntfs/dir.c:1021 [inline]
BUG: KASAN: slab-out-of-bounds in ntfs_readdir+0xed5/0x36f0 fs/ntfs/dir.c:1200
Read of size 1 at addr ffff8881481466f1 by task syz-executor201/3499

CPU: 1 PID: 3499 Comm: syz-executor201 Not tainted 5.15.118-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description+0x63/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x16b/0x1c0 mm/kasan/report.c:451
 ntfs_filldir fs/ntfs/dir.c:1021 [inline]
 ntfs_readdir+0xed5/0x36f0 fs/ntfs/dir.c:1200
 iterate_dir+0x224/0x570
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64+0x209/0x4f0 fs/readdir.c:354
 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+0x61/0xcb
RIP: 0033:0x7f0208a327b9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007ffd50755428 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0208a327b9
RDX: 00000000000000ab RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00007f02089f2050 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000001f1b8 R11: 0000000000000246 R12: 00007f02089f20e0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Allocated by task 3499:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc+0xba/0xf0 mm/kasan/common.c:513
 kasan_kmalloc include/linux/kasan.h:264 [inline]
 __kmalloc+0x168/0x300 mm/slub.c:4407
 kmalloc include/linux/slab.h:596 [inline]
 ntfs_readdir+0x823/0x36f0 fs/ntfs/dir.c:1162
 iterate_dir+0x224/0x570
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64+0x209/0x4f0 fs/readdir.c:354
 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+0x61/0xcb

The buggy address belongs to the object at ffff888148146680
 which belongs to the cache kmalloc-64 of size 64
The buggy address is located 49 bytes to the right of
 64-byte region [ffff888148146680, ffff8881481466c0)
The buggy address belongs to the page:
page:ffffea0005205180 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x148146
flags: 0x57ff00000000200(slab|node=1|zone=2|lastcpupid=0x7ff)
raw: 057ff00000000200 ffffea00006dc9c0 0000000700000007 ffff888011c41640
raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, ts 6790493730, free_ts 0
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159
 __alloc_pages+0x272/0x700 mm/page_alloc.c:5421
 alloc_page_interleave+0x22/0x1c0 mm/mempolicy.c:2031
 alloc_slab_page mm/slub.c:1775 [inline]
 allocate_slab mm/slub.c:1912 [inline]
 new_slab+0xbb/0x4b0 mm/slub.c:1975
 ___slab_alloc+0x6f6/0xe10 mm/slub.c:3008
 __slab_alloc mm/slub.c:3095 [inline]
 slab_alloc_node mm/slub.c:3186 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 __kmalloc+0x1c9/0x300 mm/slub.c:4403
 kmalloc include/linux/slab.h:596 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 kobject_get_path+0xb4/0x220 lib/kobject.c:184
 kobject_uevent_env+0x298/0x8d0 lib/kobject_uevent.c:529
 device_add+0xa4f/0xfd0 drivers/base/core.c:3375
 wiphy_register+0x1d30/0x2bb0 net/wireless/core.c:917
 ieee80211_register_hw+0x2986/0x39d0 net/mac80211/main.c:1299
 mac80211_hwsim_new_radio+0x223d/0x4200 drivers/net/wireless/mac80211_hwsim.c:3374
 init_mac80211_hwsim+0x775/0x9aa drivers/net/wireless/mac80211_hwsim.c:4606
 do_one_initcall+0x22b/0x7a0 init/main.c:1306
 do_initcall_level+0x157/0x207 init/main.c:1379
 do_initcalls+0x49/0x86 init/main.c:1395
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888148146580: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff888148146600: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
>ffff888148146680: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
                                                             ^
 ffff888148146700: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
 ffff888148146780: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
==================================================================

Crashes (37):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/06/28 08:41 linux-5.15.y f67653019430 4cd5bb25 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/28 08:28 linux-5.15.y f67653019430 4cd5bb25 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/28 08:14 linux-5.15.y f67653019430 4cd5bb25 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan KASAN: slab-out-of-bounds Read in ntfs_readdir
2024/03/26 15:46 linux-5.15.y b95c01af2113 bcd9b39f .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/07 16:34 linux-5.15.y d7af3e5ba454 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/07 16:12 linux-5.15.y d7af3e5ba454 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/07 15:52 linux-5.15.y d7af3e5ba454 a4ae4f42 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2024/04/01 18:18 linux-5.15.y 9465fef4ae35 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: slab-out-of-bounds Read in ntfs_readdir
2024/03/27 21:06 linux-5.15.y 9465fef4ae35 120789fd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: slab-out-of-bounds Read in ntfs_readdir
2024/03/27 01:12 linux-5.15.y 9465fef4ae35 454571b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2024/03/27 01:12 linux-5.15.y 9465fef4ae35 454571b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2024/03/26 19:33 linux-5.15.y b95c01af2113 454571b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2024/03/26 12:33 linux-5.15.y b95c01af2113 bcd9b39f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/21 23:13 linux-5.15.y d54cfc420586 abdf9bae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/20 06:10 linux-5.15.y d54cfc420586 4547cdf9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/16 11:08 linux-5.15.y d54cfc420586 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/14 19:54 linux-5.15.y d54cfc420586 d624500f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/22 05:29 linux-5.15.y d54cfc420586 abdf9bae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/20 00:31 linux-5.15.y d54cfc420586 4547cdf9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/19 21:49 linux-5.15.y d54cfc420586 4547cdf9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/18 16:23 linux-5.15.y d54cfc420586 022df2bb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/17 19:20 linux-5.15.y d54cfc420586 20f8b3c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/17 18:22 linux-5.15.y d54cfc420586 20f8b3c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/16 23:07 linux-5.15.y d54cfc420586 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/16 23:06 linux-5.15.y d54cfc420586 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/15 16:18 linux-5.15.y d54cfc420586 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/14 21:00 linux-5.15.y d54cfc420586 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/07/14 20:01 linux-5.15.y d54cfc420586 d624500f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/16 16:37 linux-5.15.y 471e639e59d1 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/13 03:44 linux-5.15.y 7349e40704a0 749afb64 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/12 19:12 linux-5.15.y 7349e40704a0 aaed0183 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/10 19:43 linux-5.15.y 7349e40704a0 49519f06 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/10 12:43 linux-5.15.y 7349e40704a0 49519f06 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/08 02:43 linux-5.15.y d7af3e5ba454 058b3a5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/07 19:57 linux-5.15.y d7af3e5ba454 058b3a5a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/06/07 15:35 linux-5.15.y d7af3e5ba454 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
2023/04/27 08:51 linux-5.15.y f48aeeaaa64c 19a3dabe .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_readdir
* Struck through repros no longer work on HEAD.