Message-ID: <CAHOo4gKf2mjPX8oAxCBUc74=+OToMdu6pe6iALGCOmXjToFaKw@mail.gmail.com>
Date: Sat, 12 Oct 2024 17:13:40 +0800
From: Hui Guo <guohui.study@...il.com>
To: Dave Kleikamp <shaggy@...nel.org>, Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>, 
	"Matthew Wilcox (Oracle)" <willy@...radead.org>, Lizhi Xu <lizhi.xu@...driver.com>, 
	jfs-discussion@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Cc: syzkaller-bugs@...glegroups.com
Subject: BUG: unable to handle kernel NULL pointer dereference in write_special_inodes

Hi Kernel Maintainers,
we found a crash "BUG: unable to handle kernel NULL pointer
dereference in write_special_inodes" in upstream, and reproduced it
successfully.


HEAD Commit: 9852d85ec9d492ebef56dc5f229416c925758edc(tag 'v6.12-rc1')
kernel config: https://raw.githubusercontent.com/androidAppGuard/KernelBugs/main/6.12.config

repro report: https://raw.githubusercontent.com/androidAppGuard/KernelBugs/main/9852d85ec9d492ebef56dc5f229416c925758edc/e4653eb3a7397c5782f96343fe9dbc5dada06496/repro.report
console output:
https://raw.githubusercontent.com/androidAppGuard/KernelBugs/main/9852d85ec9d492ebef56dc5f229416c925758edc/e4653eb3a7397c5782f96343fe9dbc5dada06496/repro.log
syz reproducer:
https://raw.githubusercontent.com/androidAppGuard/KernelBugs/main/9852d85ec9d492ebef56dc5f229416c925758edc/e4653eb3a7397c5782f96343fe9dbc5dada06496/repro.prog
c reproducer: https://raw.githubusercontent.com/androidAppGuard/KernelBugs/main/9852d85ec9d492ebef56dc5f229416c925758edc/e4653eb3a7397c5782f96343fe9dbc5dada06496/repro.cprog


Please let me know if there is anything I can help.
Best,
Hui Guo

This is the crash log I got by reproducing the bug based on the above
environment，
I have piped this log through decode_stacktrace.sh for better
understand the cause of the bug.
================================================================================
executing program
syzkaller login: [ 43.704796][ T8242] loop3: detected capacity change
from 0 to 32768
[ 43.707859][ T8215] loop0: detected capacity change from 0 to 32768
[ 43.733656][ T8239] loop2: detected capacity change from 0 to 32768
[ 43.759686][ T8234] loop1: detected capacity change from 0 to 32768
[ 43.921958][ T8248] loop5: detected capacity change from 0 to 32768
[ 43.947086][ T8243] loop4: detected capacity change from 0 to 32768
[ 43.969139][ T8250] loop9: detected capacity change from 0 to 32768
[ 43.986996][ T8254] loop14: detected capacity change from 0 to 32768
[ 44.060631][ T8218] BUG: kernel NULL pointer dereference, address:
0000000000000030
[ 44.061395][ T8218] #PF: supervisor read access in kernel mode
[ 44.061959][ T8218] #PF: error_code(0x0000) - not-present page
[ 44.062526][ T8218] PGD 0 P4D 0
[ 44.062898][ T8218] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
[ 44.063564][ T8218] CPU: 1 UID: 0 PID: 8218 Comm: syz-executor368 Not
tainted 6.12.0-rc1 #5
[ 44.064885][ T8218] Hardware name: QEMU Standard PC (i440FX + PIIX,
1996), BIOS 1.15.0-1 04/01/2014
[ 44.065764][ T8218] RIP: 0010:write_special_inodes
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/jfs/jfs_logmgr.c:208
(discriminator 3))
[ 44.066375][ T8218] Code: 53 e8 6c 30 68 ff 49 8b 45 00 49 39 c5 74
43 48 8d 58 c8 e8 5a 30 68 ff 48 8b 43 10 48 8b 78 30 2e e8 4c 0d 39
03 48 8b 43 28 <48> 8b 78 30 2e e8 3e 0d 39 03 48 8b 83 b0 00 00 00 48
8b 78 30 2e
All code
========
0: 53 push %rbx
1: e8 6c 30 68 ff call 0xffffffffff683072
6: 49 8b 45 00 mov 0x0(%r13),%rax
a: 49 39 c5 cmp %rax,%r13
d: 74 43 je 0x52
f: 48 8d 58 c8 lea -0x38(%rax),%rbx
13: e8 5a 30 68 ff call 0xffffffffff683072
18: 48 8b 43 10 mov 0x10(%rbx),%rax
1c: 48 8b 78 30 mov 0x30(%rax),%rdi
20: 2e e8 4c 0d 39 03 cs call 0x3390d72
26: 48 8b 43 28 mov 0x28(%rbx),%rax
2a:* 48 8b 78 30 mov 0x30(%rax),%rdi <-- trapping instruction
2e: 2e e8 3e 0d 39 03 cs call 0x3390d72
34: 48 8b 83 b0 00 00 00 mov 0xb0(%rbx),%rax
3b: 48 8b 78 30 mov 0x30(%rax),%rdi
3f: 2e cs

Code starting with the faulting instruction
===========================================
0: 48 8b 78 30 mov 0x30(%rax),%rdi
4: 2e e8 3e 0d 39 03 cs call 0x3390d48
a: 48 8b 83 b0 00 00 00 mov 0xb0(%rbx),%rax
11: 48 8b 78 30 mov 0x30(%rax),%rdi
15: 2e cs
[ 44.068207][ T8218] RSP: 0018:ffff88800f2c3ce8 EFLAGS: 00010286
[ 44.068812][ T8218] RAX: 0000000000000000 RBX: ffff88800e279c00 RCX:
ffffffff814acf4f
[ 44.069570][ T8218] RDX: ffff88800dde3300 RSI: ffffffff814acf5b RDI:
0000000000000005
[ 44.070349][ T8218] RBP: ffff88800f2c3d00 R08: ffff88800a50e3d0 R09:
0000000000000001
[ 44.071123][ T8218] R10: 0000000000000000 R11: 0000000000000001 R12:
ffffffff814b2420
[ 44.071889][ T8218] R13: ffff888040fd5200 R14: ffff888040fd5280 R15:
0000000000000000
[ 44.072665][ T8218] FS: 00005555717b43c0(0000)
GS:ffff88807ee00000(0000) knlGS:0000000000000000
[ 44.073532][ T8218] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 44.074184][ T8218] CR2: 0000000000000030 CR3: 000000000d8fa000 CR4:
0000000000350ef0
[ 44.074962][ T8218] Call Trace:
[ 44.075300][ T8218] <TASK>
[ 44.075599][ T8218] ? show_regs
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/kernel/dumpstack.c:479)
[ 44.076065][ T8218] ? __die
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/kernel/dumpstack.c:421
/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/kernel/dumpstack.c:434)
[ 44.076490][ T8218] ? page_fault_oops
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/mm/fault.c:711)
[ 44.077009][ T8218] ? srso_return_thunk
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/lib/retpoline.S:224)
[ 44.077511][ T8218] ? __kvm_handle_async_pf
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/kernel/kvm.c:262)
[ 44.078096][ T8218] ? exc_page_fault
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/mm/fault.c:1265
/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/mm/fault.c:1481
/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/mm/fault.c:1539)
[ 44.078637][ T8218] ? asm_exc_page_fault
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/./arch/x86/include/asm/idtentry.h:623)
[ 44.079197][ T8218] ? __pfx_filemap_flush
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/mm/filemap.c:463)
[ 44.079730][ T8218] ? filemap_fdatawrite_wbc
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/mm/filemap.c:393)
[ 44.080314][ T8218] ? filemap_fdatawrite_wbc
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/mm/filemap.c:401)
[ 44.080893][ T8218] ? write_special_inodes
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/jfs/jfs_logmgr.c:208
(discriminator 3))
[ 44.081423][ T8218] ? write_special_inodes
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/jfs/jfs_logmgr.c:208
(discriminator 3))
[ 44.081967][ T8218] lmLogSync
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/jfs/jfs_logmgr.c:937)
[ 44.082412][ T8218] ? srso_return_thunk
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/lib/retpoline.S:224)
[ 44.082917][ T8218] ? __sanitizer_cov_trace_const_cmp4
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/kernel/kcov.c:316)
[ 44.083568][ T8218] ? srso_return_thunk
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/lib/retpoline.S:224)
[ 44.083893][ T8253] loop11: detected capacity change from 0 to 32768
[ 44.084063][ T8218] ? jfs_flush_journal
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/jfs/jfs_logmgr.c:1615)
[ 44.085204][ T8218] jfs_syncpt
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/jfs/jfs_logmgr.c:1041)
[ 44.085640][ T8218] jfs_sync_fs
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/jfs/super.c:688)
[ 44.086107][ T8218] ? __pfx_jfs_sync_fs
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/jfs/super.c:674)
[ 44.086625][ T8218] sync_filesystem
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/sync.c:57
/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/sync.c:30)
[ 44.087120][ T8218] generic_shutdown_super
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/super.c:624)
[ 44.087674][ T8218] kill_block_super
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/super.c:1697)
[ 44.088178][ T8218] deactivate_locked_super
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/super.c:434
/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/super.c:475)
[ 44.088742][ T8218] deactivate_super
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/super.c:508)
[ 44.089265][ T8218] cleanup_mnt
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/namespace.c:250
/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/namespace.c:1374)
[ 44.089734][ T8218] __cleanup_mnt
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/namespace.c:1381)
[ 44.090212][ T8218] task_work_run
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/./include/linux/sched.h:2031
(discriminator 1)
/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/kernel/task_work.c:230
(discriminator 1))
[ 44.090688][ T8218] syscall_exit_to_user_mode
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/./include/linux/resume_user_mode.h:50
/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/kernel/entry/common.c:114
/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/./include/linux/entry-common.h:328
/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/kernel/entry/common.c:207
/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/kernel/entry/common.c:218)
[ 44.091087][ T8247] loop10: detected capacity change from 0 to 32768
[ 44.091253][ T8218] do_syscall_64
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/entry/common.c:102)
[ 44.092312][ T8218] entry_SYSCALL_64_after_hwframe
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/arch/x86/entry/entry_64.S:130)
[ 44.092931][ T8218] RIP: 0033:0x7f44ff534f8b
[ 44.093385][ T8218] Code: 08 00 48 83 c4 08 5b 5d c3 66 0f 1f 44 00
00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 f3 0f 1e fa b8 a6
00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 b8 ff
ff ff f7 d8
All code
========
0: 08 00 or %al,(%rax)
2: 48 83 c4 08 add $0x8,%rsp
6: 5b pop %rbx
7: 5d pop %rbp
8: c3 ret
9: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
f: c3 ret
10: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
17: 00 00 00
1a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
1f: f3 0f 1e fa endbr64
23: b8 a6 00 00 00 mov $0xa6,%eax
28: 0f 05 syscall
2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction
30: 77 05 ja 0x37
32: c3 ret
33: 0f 1f 40 00 nopl 0x0(%rax)
37: 48 c7 c2 b8 ff ff ff mov $0xffffffffffffffb8,%rdx
3e: f7 d8 neg %eax

Code starting with the faulting instruction
===========================================
0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax
6: 77 05 ja 0xd
8: c3 ret
9: 0f 1f 40 00 nopl 0x0(%rax)
d: 48 c7 c2 b8 ff ff ff mov $0xffffffffffffffb8,%rdx
14: f7 d8 neg %eax
[ 44.095191][ T8218] RSP: 002b:00007ffc50d9a3b8 EFLAGS: 00000202
ORIG_RAX: 00000000000000a6
[ 44.096010][ T8218] RAX: 0000000000000000 RBX: 000000000000a5ee RCX:
00007f44ff534f8b
[ 44.096766][ T8218] RDX: 00007f44ff4e4e88 RSI: 0000000000000009 RDI:
00007ffc50d9a470
[ 44.097530][ T8218] RBP: 00007ffc50d9a470 R08: 0000000000000000 R09:
00007ffc50d9a240
[ 44.098292][ T8218] R10: 00005555717b57b3 R11: 0000000000000202 R12:
00007ffc50d9b500
[ 44.099058][ T8218] R13: 00005555717b5770 R14: 00007ffc50d9a3d8 R15:
00007ffc50d9b560
[ 44.099831][ T8218] </TASK>
[ 44.100138][ T8218] Modules linked in:
[ 44.100537][ T8218] CR2: 0000000000000030
[ 44.100952][ T8218] ---[ end trace 0000000000000000 ]---
[ 44.101472][ T8218] RIP: 0010:write_special_inodes
(/data/ghui/docker_data/linux_kernel/upstream/linux_v6.11/fs/jfs/jfs_logmgr.c:208
(discriminator 3))
[ 44.102070][ T8218] Code: 53 e8 6c 30 68 ff 49 8b 45 00 49 39 c5 74
43 48 8d 58 c8 e8 5a 30 68 ff 48 8b 43 10 48 8b 78 30 2e e8 4c 0d 39
03 48 8b 43 28 <48> 8b 78 30 2e e8 3e 0d 39 03 48 8b 83 b0 00 00 00 48
8b 78 30 2e
All code
========
0: 53 push %rbx
1: e8 6c 30 68 ff call 0xffffffffff683072
6: 49 8b 45 00 mov 0x0(%r13),%rax
a: 49 39 c5 cmp %rax,%r13
d: 74 43 je 0x52
f: 48 8d 58 c8 lea -0x38(%rax),%rbx
13: e8 5a 30 68 ff call 0xffffffffff683072
18: 48 8b 43 10 mov 0x10(%rbx),%rax
1c: 48 8b 78 30 mov 0x30(%rax),%rdi
20: 2e e8 4c 0d 39 03 cs call 0x3390d72
26: 48 8b 43 28 mov 0x28(%rbx),%rax
2a:* 48 8b 78 30 mov 0x30(%rax),%rdi <-- trapping instruction
2e: 2e e8 3e 0d 39 03 cs call 0x3390d72
34: 48 8b 83 b0 00 00 00 mov 0xb0(%rbx),%rax
3b: 48 8b 78 30 mov 0x30(%rax),%rdi
3f: 2e cs

Code starting with the faulting instruction
===========================================
0: 48 8b 78 30 mov 0x30(%rax),%rdi
4: 2e e8 3e 0d 39 03 cs call 0x3390d48
a: 48 8b 83 b0 00 00 00 mov 0xb0(%rbx),%rax
11: 48 8b 78 30 mov 0x30(%rax),%rdi
15: 2e cs
[ 44.103876][ T8218] RSP: 0018:ffff88800f2c3ce8 EFLAGS: 00010286
[ 44.104474][ T8218] RAX: 0000000000000000 RBX: ffff88800e279c00 RCX:
ffffffff814acf4f
[ 44.105248][ T8218] RDX: ffff88800dde3300 RSI: ffffffff814acf5b RDI:
0000000000000005
[ 44.106014][ T8218] RBP: ffff88800f2c3d00 R08: ffff88800a50e3d0 R09:
0000000000000001
[ 44.106771][ T8218] R10: 0000000000000000 R11: 0000000000000001 R12:
ffffffff814b2420
[ 44.107538][ T8218] R13: ffff888040fd5200 R14: ffff888040fd5280 R15:
0000000000000000
[ 44.108300][ T8218] FS: 00005555717b43c0(0000)
GS:ffff88807ee00000(0000) knlGS:0000000000000000
[ 44.109164][ T8218] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 44.109809][ T8218] CR2: 0000000000000030 CR3: 000000000d8fa000 CR4:
0000000000350ef0
[ 44.110572][ T8218] Kernel panic - not syncing: Fatal exception
[ 44.111289][ T8218] Kernel Offset: disabled
[ 44.111722][ T8218] Rebooting in 86400 seconds..

VM DIAGNOSIS:
07:10:48 Registers:
info registers vcpu 0
RAX=0000000000000000 RBX=0000000000001000 RCX=ffffffff814aca55
RDX=ffff88800aa46600
RSI=0000000000000000 RDI=0000000000000001 RBP=ffff88800ee03cf8
RSP=ffff88800ee03ce0
R8 =0000000000001000 R9 =ffffea0000b68ac0 R10=0000000000000000
R11=0000000000000001
R12=ffffea0000b68ac0 R13=0000000000001000 R14=0000000000ed2000
R15=0000000000001000
RIP=ffffffff8134ec2f RFL=00000293 [--S-A-C] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 00000000 00000000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0000 0000000000000000 00000000 00000000
FS =0000 00005555717b43c0 00000000 00000000
GS =0000 ffff88803ea00000 00000000 00000000
LDT=0000 fffffe0000000000 00000000 00000000
TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe0000001000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007ffc50d99bd8 CR3=000000000e6c8000 CR4=00350ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000
DR3=0000000000000000
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000001d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
YMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM01=0000000000000000 0000000000000000 00000000ff000000 00000000000000ff
YMM02=0000000000000000 0000000000000000 00000000ff000000 00000000000000ff
YMM03=0000000000000000 0000000000000000 00007ffc50d9b520 00007ffc50d9b520
YMM04=0000000000000000 0000000000000000 0000000000000000 00007ffc50d9b55f
YMM05=0000000000000000 0000000000000000 cfff5ffebffcefff d7ffa23fffafff49
YMM06=0000000000000000 0000000000000000 1d3ff77236800000 07fec5b8a9ffbb91
YMM07=0000000000000000 0000000000000000 ffb2196e227feee7 ffd6adce7ffafff5
YMM08=0000000000000000 0000000000000000 7665642f00736672 65646e69622f2e00
YMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000
info registers vcpu 1
RAX=0000000000000063 RBX=0000000000000000 RCX=0000000000000000
RDX=00000000000003f8
RSI=ffffffff82a1d59a RDI=ffffffff880cbfc0 RBP=ffff88800f2c3828
RSP=ffff88800f2c3810
R8 =302e34342020205b R9 =205b5d3436353336 R10=0000000000000063
R11=205d383132385420
R12=ffffffff880cbfc0 R13=0000000000000063 R14=ffffffff87fb4b3a
R15=0000000000000000
RIP=ffffffff82a1d5b1 RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
ES =0000 0000000000000000 00000000 00000000
CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA]
SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA]
DS =0000 0000000000000000 00000000 00000000
FS =0000 00005555717b43c0 00000000 00000000
GS =0000 ffff88807ee00000 00000000 00000000
LDT=0000 fffffe0000000000 00000000 00000000
TR =0040 fffffe000003e000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe000003c000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=0000000000000030 CR3=000000000d8fa000 CR4=00350ef0
DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000
DR3=0000000000000000
DR6=00000000ffff0ff0 DR7=0000000000000400
EFER=0000000000001d01
FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80
FPR0=0000000000000000 0000 FPR1=0000000000000000 0000
FPR2=0000000000000000 0000 FPR3=0000000000000000 0000
FPR4=0000000000000000 0000 FPR5=0000000000000000 0000
FPR6=0000000000000000 0000 FPR7=0000000000000000 0000
YMM00=0000000000000000 0000000000000000 0000000000989680 0000000000000000
YMM01=0000000000000000 0000000000000000 0000000000000000 0000000000989680
YMM02=0000000000000000 0000000000000000 00007f44ff5c3bc0 00007f44ff5c3bc0
YMM03=0000000000000000 0000000000000000 00007ffc50d9b560 00007ffc50d9b560
YMM04=0000000000000000 0000000000000000 0000000000000000 00007ffc50d9b59f
YMM05=0000000000000000 0000000000000000 0000000000000000 00007f44ff5b84b0
YMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM08=0000000000000000 0000000000000000 7665642f00736672 65646e69622f2e00
YMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000
YMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000

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