| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <0000000000007a66c5062140e8f9@google.com>
Date: Tue, 03 Sep 2024 18:15:22 -0700
From: syzbot <syzbot+3bfd2cc059ab93efcdb4@...kaller.appspotmail.com>
To: almaz.alexandrovich@...agon-software.com, linux-kernel@...r.kernel.org,
ntfs3@...ts.linux.dev, syzkaller-bugs@...glegroups.com
Subject: [syzbot] [ntfs3?] INFO: trying to register non-static key in mark_as_free_ex
Hello,
syzbot found the following issue on:
HEAD commit: 431c1646e1f8 Linux 6.11-rc6
git tree: upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=10f3370b980000
kernel config: https://syzkaller.appspot.com/x/.config?x=660f6eb11f9c7dc5
dashboard link: https://syzkaller.appspot.com/bug?extid=3bfd2cc059ab93efcdb4
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16b809eb980000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1495c40d980000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/8f73ff24e19d/disk-431c1646.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/a9cc8629dafc/vmlinux-431c1646.xz
kernel image: https://storage.googleapis.com/syzbot-assets/01c91ce5203b/bzImage-431c1646.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/9687e33b346d/mount_0.gz
The issue was bisected to:
commit 110b24eb1a749bea3440f3ca2ff890a26179050a
Author: Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
Date: Wed Apr 17 07:33:06 2024 +0000
fs/ntfs3: Taking DOS names into account during link counting
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13aefeb7980000
final oops: https://syzkaller.appspot.com/x/report.txt?x=106efeb7980000
console output: https://syzkaller.appspot.com/x/log.txt?x=17aefeb7980000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3bfd2cc059ab93efcdb4@...kaller.appspotmail.com
Fixes: 110b24eb1a74 ("fs/ntfs3: Taking DOS names into account during link counting")
loop0: detected capacity change from 0 to 8192
ntfs3: loop0: Different NTFS sector size (4096) and media sector size (512).
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 5231 Comm: syz-executor253 Not tainted 6.11.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
assign_lock_key+0x238/0x270 kernel/locking/lockdep.c:975
register_lock_class+0x1cf/0x980 kernel/locking/lockdep.c:1288
__lock_acquire+0xf0/0x2040 kernel/locking/lockdep.c:5019
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
down_write_nested+0xa2/0x220 kernel/locking/rwsem.c:1695
mark_as_free_ex+0x3e/0x390 fs/ntfs3/fsntfs.c:2484
run_unpack+0x7f3/0xda0 fs/ntfs3/run.c:1019
run_unpack_ex+0x14b/0x7f0 fs/ntfs3/run.c:1060
ni_delete_all+0x2d9/0x9a0 fs/ntfs3/frecord.c:1610
ni_clear+0x28e/0x4b0 fs/ntfs3/frecord.c:106
evict+0x534/0x950 fs/inode.c:704
ntfs_loadlog_and_replay+0x2e8/0x4f0 fs/ntfs3/fsntfs.c:326
ntfs_fill_super+0x2c38/0x4730 fs/ntfs3/super.c:1280
get_tree_bdev+0x3f9/0x570 fs/super.c:1635
vfs_get_tree+0x92/0x2b0 fs/super.c:1800
do_new_mount+0x2be/0xb40 fs/namespace.c:3472
do_mount fs/namespace.c:3812 [inline]
__do_sys_mount fs/namespace.c:4020 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3f008c4daa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007ffda8f23918 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffda8f23930 RCX: 00007f3f008c4daa
RDX: 0000000020020b80 RSI: 0000000020020bc0 RDI: 00007ffda8f23930
RBP: 0000000000000004 R08: 00007ffda8f23970 R09: 0000000000020b83
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000
R13: 00007ffda8f23970 R14: 0000000000000003 R15: 0000000000400000
</TASK>
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 1 UID: 0 PID: 5231 Comm: syz-executor253 Not tainted 6.11.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:wnd_is_used+0x58/0x520 fs/ntfs3/bitmap.c:928
Code: 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 a0 11 13 ff 49 8b 1f 48 8d 6b 14 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 7b 04 00 00 0f b6 6d 00 4c 8d 75 03 bf 3d
RSP: 0018:ffffc90009257288 EFLAGS: 00010213
RAX: 0000000000000002 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88802ebf41f8
RBP: 0000000000000014 R08: ffff88802ebf420f R09: 1ffff11005d7e841
R10: dffffc0000000000 R11: ffffed1005d7e842 R12: 0000000000000003
R13: 0000000000000002 R14: 0000000000000002 R15: ffff88802ebf41f8
FS: 000055556c297380(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f20b8995ed8 CR3: 000000007757a000 CR4: 0000000000350ef0
Call Trace:
<TASK>
mark_as_free_ex+0x53/0x390 fs/ntfs3/fsntfs.c:2485
run_unpack+0x7f3/0xda0 fs/ntfs3/run.c:1019
run_unpack_ex+0x14b/0x7f0 fs/ntfs3/run.c:1060
ni_delete_all+0x2d9/0x9a0 fs/ntfs3/frecord.c:1610
ni_clear+0x28e/0x4b0 fs/ntfs3/frecord.c:106
evict+0x534/0x950 fs/inode.c:704
ntfs_loadlog_and_replay+0x2e8/0x4f0 fs/ntfs3/fsntfs.c:326
ntfs_fill_super+0x2c38/0x4730 fs/ntfs3/super.c:1280
get_tree_bdev+0x3f9/0x570 fs/super.c:1635
vfs_get_tree+0x92/0x2b0 fs/super.c:1800
do_new_mount+0x2be/0xb40 fs/namespace.c:3472
do_mount fs/namespace.c:3812 [inline]
__do_sys_mount fs/namespace.c:4020 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3f008c4daa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007ffda8f23918 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffda8f23930 RCX: 00007f3f008c4daa
RDX: 0000000020020b80 RSI: 0000000020020bc0 RDI: 00007ffda8f23930
RBP: 0000000000000004 R08: 00007ffda8f23970 R09: 0000000000020b83
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000
R13: 00007ffda8f23970 R14: 0000000000000003 R15: 0000000000400000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:wnd_is_used+0x58/0x520 fs/ntfs3/bitmap.c:928
Code: 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8 a0 11 13 ff 49 8b 1f 48 8d 6b 14 48 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 7b 04 00 00 0f b6 6d 00 4c 8d 75 03 bf 3d
RSP: 0018:ffffc90009257288 EFLAGS: 00010213
RAX: 0000000000000002 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88802ebf41f8
RBP: 0000000000000014 R08: ffff88802ebf420f R09: 1ffff11005d7e841
R10: dffffc0000000000 R11: ffffed1005d7e842 R12: 0000000000000003
R13: 0000000000000002 R14: 0000000000000002 R15: ffff88802ebf41f8
FS: 000055556c297380(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f20b8995ed8 CR3: 000000007757a000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
0: 48 c1 e8 03 shr $0x3,%rax
4: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
8: 74 08 je 0x12
a: 4c 89 ff mov %r15,%rdi
d: e8 a0 11 13 ff call 0xff1311b2
12: 49 8b 1f mov (%r15),%rbx
15: 48 8d 6b 14 lea 0x14(%rbx),%rbp
19: 48 89 e8 mov %rbp,%rax
1c: 48 c1 e8 03 shr $0x3,%rax
20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx
27: fc ff df
* 2a: 0f b6 04 08 movzbl (%rax,%rcx,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 0f 85 7b 04 00 00 jne 0x4b1
36: 0f b6 6d 00 movzbl 0x0(%rbp),%ebp
3a: 4c 8d 75 03 lea 0x3(%rbp),%r14
3e: bf .byte 0xbf
3f: 3d .byte 0x3d
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@...glegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
Powered by blists - more mailing lists