syzbot


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

Status: fixed on 2024/04/02 12:56
Reported-by: syzbot+224664e3588ec766c818@syzkaller.appspotmail.com
Fix commit: 6ed6cdbe8833 fs/ntfs3: Fix oob in ntfs_listxattr
First crash: 451d, last: 113d
Fix bisection: fixed by (bisect log) :
commit 6ed6cdbe88334ca3430c5aee7754dc4597498dfb
Author: Edward Adam Davis <eadavis@qq.com>
Date: Sat Dec 30 09:00:03 2023 +0000

  fs/ntfs3: Fix oob in ntfs_listxattr

  
Bug presence (1)
Date Name Commit Repro Result
2024/03/15 upstream (ToT) 1bbeaf83dd7b C Didn't crash
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: slab-out-of-bounds Read in ntfs_listxattr (2) ntfs3 C error 15 136d 178d 26/27 fixed on 2024/03/25 23:45
upstream KASAN: slab-out-of-bounds Read in ntfs_listxattr ntfs3 C done 70 183d 562d 25/27 fixed on 2023/12/22 18:34
linux-5.15 KASAN: slab-out-of-bounds Read in ntfs_listxattr C error 152 141d 452d 0/3 auto-obsoleted due to no activity on 2024/04/25 11:40
Fix bisection attempts (3)
Created Duration User Patch Repo Result
2024/03/30 15:55 4h02m bisect fix linux-6.1.y job log (1)
2023/10/20 03:38 1h51m bisect fix linux-6.1.y job log (0) log
2023/08/02 02:55 4h41m bisect fix linux-6.1.y job log (0) log

Sample crash report:
loop0: detected capacity change from 0 to 4096
ntfs3: loop0: Different NTFS' sector size (4096) and media sector size (512)
ntfs3: loop0: Mark volume as dirty due to NTFS errors
ntfs3: loop0: Failed to load $Extend.
==================================================================
BUG: KASAN: slab-out-of-bounds in ntfs_list_ea fs/ntfs3/xattr.c:230 [inline]
BUG: KASAN: slab-out-of-bounds in ntfs_listxattr+0x3b2/0x5b0 fs/ntfs3/xattr.c:751
Read of size 48 at addr ffff8880260096b0 by task syz-executor126/3541

CPU: 1 PID: 3541 Comm: syz-executor126 Not tainted 6.1.69-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x15f/0x4f0 mm/kasan/report.c:395
 kasan_report+0x136/0x160 mm/kasan/report.c:495
 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189
 memcpy+0x25/0x60 mm/kasan/shadow.c:65
 ntfs_list_ea fs/ntfs3/xattr.c:230 [inline]
 ntfs_listxattr+0x3b2/0x5b0 fs/ntfs3/xattr.c:751
 vfs_listxattr fs/xattr.c:457 [inline]
 listxattr+0x282/0x2e0 fs/xattr.c:804
 path_listxattr fs/xattr.c:828 [inline]
 __do_sys_listxattr fs/xattr.c:840 [inline]
 __se_sys_listxattr fs/xattr.c:837 [inline]
 __x64_sys_listxattr+0x172/0x230 fs/xattr.c:837
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f68eaffa5f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff6fab9998 EFLAGS: 00000246 ORIG_RAX: 00000000000000c2
RAX: ffffffffffffffda RBX: 00007fff6fab9b78 RCX: 00007f68eaffa5f9
RDX: 00000000000000ae RSI: 0000000020000080 RDI: 0000000020000000
RBP: 00007f68eb08c610 R08: 000000000001f1e5 R09: 0000000000000000
R10: 00007fff6fab9860 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff6fab9b68 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Allocated by task 3541:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slab_common.c:955 [inline]
 __kmalloc+0xb2/0x230 mm/slab_common.c:968
 kmalloc include/linux/slab.h:558 [inline]
 ntfs_read_ea+0x48a/0xa00 fs/ntfs3/xattr.c:117
 ntfs_list_ea fs/ntfs3/xattr.c:202 [inline]
 ntfs_listxattr+0x179/0x5b0 fs/ntfs3/xattr.c:751
 vfs_listxattr fs/xattr.c:457 [inline]
 listxattr+0x282/0x2e0 fs/xattr.c:804
 path_listxattr fs/xattr.c:828 [inline]
 __do_sys_listxattr fs/xattr.c:840 [inline]
 __se_sys_listxattr fs/xattr.c:837 [inline]
 __x64_sys_listxattr+0x172/0x230 fs/xattr.c:837
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff888026009680
 which belongs to the cache kmalloc-64 of size 64
The buggy address is located 48 bytes inside of
 64-byte region [ffff888026009680, ffff8880260096c0)

The buggy address belongs to the physical page:
page:ffffea0000980240 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x26009
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 ffffea000099bf40 dead000000000004 ffff888012441640
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, tgid 1 (swapper/0), ts 8927623238, free_ts 0
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2513
 prep_new_page mm/page_alloc.c:2520 [inline]
 get_page_from_freelist+0x31a1/0x3320 mm/page_alloc.c:4279
 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5545
 alloc_page_interleave+0x22/0x1c0 mm/mempolicy.c:2115
 alloc_slab_page+0x6a/0x150 mm/slub.c:1794
 allocate_slab mm/slub.c:1939 [inline]
 new_slab+0x84/0x2d0 mm/slub.c:1992
 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437
 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1045
 kmalloc include/linux/slab.h:553 [inline]
 __kthread_create_on_node+0x106/0x520 kernel/kthread.c:421
 kthread_create_on_node+0xda/0x120 kernel/kthread.c:512
 cec_allocate_adapter+0x402/0x5e0 drivers/media/cec/core/cec-core.c:294
 vivid_cec_alloc_adap+0xf1/0x150 drivers/media/test-drivers/vivid/vivid-cec.c:323
 vivid_create_instance drivers/media/test-drivers/vivid/vivid-core.c:1934 [inline]
 vivid_probe+0x4f99/0x7420 drivers/media/test-drivers/vivid/vivid-core.c:2041
 platform_probe+0x131/0x1b0 drivers/base/platform.c:1400
 really_probe+0x2ab/0xcb0 drivers/base/dd.c:639
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888026009580: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
 ffff888026009600: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
>ffff888026009680: 00 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc
                                        ^
 ffff888026009700: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
 ffff888026009780: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
==================================================================

Crashes (52):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/12/29 22:49 linux-6.1.y 4aa6747d9352 fb427a07 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/09/15 18:57 linux-6.1.y 09045dae0d90 0b6a67ac .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/06/18 10:21 linux-6.1.y ca87e77a2ef8 f3921d4d .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2024/01/22 10:54 linux-6.1.y 8fd7f4462453 9bd8dcda .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan KASAN: slab-out-of-bounds Read in ntfs_listxattr
2024/01/22 09:53 linux-6.1.y 8fd7f4462453 9bd8dcda .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/12/29 22:28 linux-6.1.y 4aa6747d9352 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan KASAN: slab-out-of-bounds Read in ntfs_listxattr
2024/02/29 13:35 linux-6.1.y 81e1dc2f7001 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/12/01 04:42 linux-6.1.y 6ac30d748bb0 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/11/24 15:40 linux-6.1.y 69e434a1cb21 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/11/13 04:57 linux-6.1.y fb2635ac69ab 6d6dbf8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/11/10 05:57 linux-6.1.y fb2635ac69ab 56230772 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/08/27 11:39 linux-6.1.y cd363bb9548e 7ba13a15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/06/18 10:03 linux-6.1.y ca87e77a2ef8 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/18 22:38 linux-6.1.y 0102425ac76b d931e9f0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/08 17:46 linux-6.1.y 543aff194ab6 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/08 15:18 linux-6.1.y 543aff194ab6 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/08 02:59 linux-6.1.y 543aff194ab6 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/07 21:16 linux-6.1.y 543aff194ab6 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/07 20:21 linux-6.1.y 543aff194ab6 f7ba566d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/07 13:30 linux-6.1.y 543aff194ab6 f7ba566d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/07 10:54 linux-6.1.y 543aff194ab6 f7ba566d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/07 01:51 linux-6.1.y 543aff194ab6 00ce4c67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/07 00:59 linux-6.1.y 543aff194ab6 00ce4c67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/06 22:45 linux-6.1.y 543aff194ab6 00ce4c67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/06 17:39 linux-6.1.y 543aff194ab6 08707520 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/06 14:52 linux-6.1.y 543aff194ab6 08707520 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/06 08:34 linux-6.1.y 3b29299e5f60 8b834965 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/06 02:34 linux-6.1.y 3b29299e5f60 8b834965 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/05 20:20 linux-6.1.y 3b29299e5f60 8b834965 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/05 17:35 linux-6.1.y 3b29299e5f60 8b834965 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/05 07:36 linux-6.1.y 3b29299e5f60 831373d3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/05 06:05 linux-6.1.y 3b29299e5f60 831373d3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/05 04:14 linux-6.1.y 3b29299e5f60 831373d3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/04 23:54 linux-6.1.y 3b29299e5f60 831373d3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/04 14:16 linux-6.1.y 3b29299e5f60 928dd177 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/04 08:35 linux-6.1.y 3b29299e5f60 41147e3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/03 21:01 linux-6.1.y 3b29299e5f60 41147e3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/03 10:16 linux-6.1.y 3b29299e5f60 41147e3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/03 09:30 linux-6.1.y 3b29299e5f60 41147e3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/02 23:11 linux-6.1.y 3b29299e5f60 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/04/02 13:05 linux-6.1.y 3b29299e5f60 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/03/30 18:34 linux-6.1.y 3b29299e5f60 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/03/30 15:58 linux-6.1.y 3b29299e5f60 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/03/29 13:11 linux-6.1.y e3a87a10f259 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/03/29 11:55 linux-6.1.y e3a87a10f259 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/03/28 20:30 linux-6.1.y e3a87a10f259 fc067f05 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
2023/03/28 16:13 linux-6.1.y e3a87a10f259 47f3aaf1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 KASAN: slab-out-of-bounds Read in ntfs_listxattr
* Struck through repros no longer work on HEAD.