syzbot


kernel BUG in ntfs_read_inode_mount

Status: fixed on 2023/02/24 13:50
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+3c765c5248797356edaa@syzkaller.appspotmail.com
Fix commit: 714fbf2647b1 ntfs: add sanity check on allocation size
First crash: 828d, last: 828d
Discussions (19)
Title Replies (including bot) Last reply
[PATCH 4.19 000/338] 4.19.238-rc1 review 357 (358) 2022/12/17 09:01
[PATCH 4.14 000/284] 4.14.276-rc1 review 297 (298) 2022/09/12 10:15
[PATCH 5.10 000/599] 5.10.110-rc1 review 628 (629) 2022/05/08 12:31
[PATCH 4.9 000/218] 4.9.311-rc1 review 224 (225) 2022/04/19 10:09
[PATCH 5.4 000/475] 5.4.189-rc1 review 485 (486) 2022/04/15 15:35
[PATCH 5.16 0000/1017] 5.16.19-rc1 review 1034 (1035) 2022/04/07 08:34
[PATCH 5.15 000/913] 5.15.33-rc1 review 932 (933) 2022/04/06 15:36
[PATCH 5.17 0000/1126] 5.17.2-rc1 review 1143 (1144) 2022/04/06 14:06
[PATCH AUTOSEL 5.17 01/21] atomics: Fix atomic64_{read_acquire,set_release} fallbacks 26 (27) 2022/03/31 17:57
[PATCH AUTOSEL 4.9 1/2] ext4: don't BUG if someone dirty pages without asking ext4 first 2 (3) 2022/03/28 19:43
[PATCH AUTOSEL 4.14 1/2] ext4: don't BUG if someone dirty pages without asking ext4 first 2 (3) 2022/03/28 19:43
[PATCH AUTOSEL 4.19 1/2] ext4: don't BUG if someone dirty pages without asking ext4 first 2 (3) 2022/03/28 19:43
[PATCH AUTOSEL 5.4 1/2] ext4: don't BUG if someone dirty pages without asking ext4 first 2 (3) 2022/03/28 19:43
[PATCH AUTOSEL 5.10 1/8] locking/lockdep: Iterate lock_classes directly when reading lockdep files 8 (9) 2022/03/28 19:43
[PATCH AUTOSEL 5.15 01/16] atomics: Fix atomic64_{read_acquire,set_release} fallbacks 16 (17) 2022/03/28 19:43
[PATCH AUTOSEL 5.16 01/20] atomics: Fix atomic64_{read_acquire,set_release} fallbacks 20 (21) 2022/03/28 19:42
[patch 003/227] ntfs: add sanity check on allocation size 2 (2) 2022/03/22 22:13
[PATCH] ntfs: add sanity check on allocation size 1 (1) 2022/01/20 09:49
[syzbot] kernel BUG in ntfs_read_inode_mount 2 (3) 2022/01/17 19:03
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 kernel BUG in ntfs_read_inode_mount ntfs C error 6 421d 582d 0/1 upstream: reported C repro on 2022/09/19 21:45

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/ntfs/malloc.h:31!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 13085 Comm: syz-executor.4 Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__ntfs_malloc fs/ntfs/malloc.h:31 [inline]
RIP: 0010:ntfs_malloc_nofs fs/ntfs/malloc.h:52 [inline]
RIP: 0010:ntfs_read_inode_mount+0x1df3/0x2490 fs/ntfs/inode.c:1884
Code: 24 30 48 39 c3 0f 83 e2 01 00 00 e8 87 85 e5 fe 48 89 ef be 42 0c 00 00 e8 ba c9 21 ff 48 89 c5 e9 59 f4 ff ff e8 6d 85 e5 fe <0f> 0b 4c 8b 7c 24 30 e8 61 85 e5 fe 48 c7 c2 c0 b3 df 89 48 c7 c7
RSP: 0018:ffffc90003a37a80 EFLAGS: 00010212
RAX: 0000000000003063 RBX: 0000000000000000 RCX: ffffc9000fc69000
RDX: 0000000000040000 RSI: ffffffff82924583 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff82923991 R11: 0000000000000000 R12: ffff88807d0f4038
R13: ffff88807d0f4040 R14: ffff888071f5f6a0 R15: ffff88801e2ca000
FS:  00007f29a2160700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555c25708 CR3: 00000000793be000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ntfs_fill_super+0xa2f/0x8440 fs/ntfs/super.c:2854
 mount_bdev+0x34d/0x410 fs/super.c:1370
 legacy_get_tree+0x105/0x220 fs/fs_context.c:610
 vfs_get_tree+0x89/0x2f0 fs/super.c:1500
 do_new_mount fs/namespace.c:2994 [inline]
 path_mount+0x1320/0x1fa0 fs/namespace.c:3324
 do_mount fs/namespace.c:3337 [inline]
 __do_sys_mount fs/namespace.c:3545 [inline]
 __se_sys_mount fs/namespace.c:3522 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3522
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f29a37ec51a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f29a215ff88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f29a37ec51a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f29a215ffe0
RBP: 00007f29a2160020 R08: 00007f29a2160020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f29a215ffe0 R15: 000000002007dd00
 </TASK>
Modules linked in:
---[ end trace 20309b23609f3571 ]---
RIP: 0010:__ntfs_malloc fs/ntfs/malloc.h:31 [inline]
RIP: 0010:ntfs_malloc_nofs fs/ntfs/malloc.h:52 [inline]
RIP: 0010:ntfs_read_inode_mount+0x1df3/0x2490 fs/ntfs/inode.c:1884
Code: 24 30 48 39 c3 0f 83 e2 01 00 00 e8 87 85 e5 fe 48 89 ef be 42 0c 00 00 e8 ba c9 21 ff 48 89 c5 e9 59 f4 ff ff e8 6d 85 e5 fe <0f> 0b 4c 8b 7c 24 30 e8 61 85 e5 fe 48 c7 c2 c0 b3 df 89 48 c7 c7
RSP: 0018:ffffc90003a37a80 EFLAGS: 00010212
RAX: 0000000000003063 RBX: 0000000000000000 RCX: ffffc9000fc69000
RDX: 0000000000040000 RSI: ffffffff82924583 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff82923991 R11: 0000000000000000 R12: ffff88807d0f4038
R13: ffff88807d0f4040 R14: ffff888071f5f6a0 R15: ffff88801e2ca000
FS:  00007f29a2160700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8b9a64ffc8 CR3: 00000000793be000 CR4: 0000000000350ee0

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/01/16 15:21 upstream d0a231f01e5b 723cfaf0 .config console log report info ci-upstream-kasan-gce-root kernel BUG in ntfs_read_inode_mount
* Struck through repros no longer work on HEAD.