BUG: stack guard page was hit in sys_lchown

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syzbot

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Dec 18, 2021, 3:31:22 PM12/18/21
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Hello,

syzbot found the following issue on:

HEAD commit: afc997898ece Merge 5.10.85 into android12-5.10-lts
git tree: android12-5.10-lts
console output: https://syzkaller.appspot.com/x/log.txt?x=160026a3b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=977f5eaa96dd4962
dashboard link: https://syzkaller.appspot.com/bug?extid=0e8eb11b3f62074b4b6f
compiler: Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.2

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0e8eb1...@syzkaller.appspotmail.com

BUG: stack guard page was hit at ffffc900062ffff8 (stack is ffffc90006300000..ffffc90006307fff)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 15610 Comm: syz-executor.5 Not tainted 5.10.85-syzkaller-00573-gafc997898ece #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:unwind_start arch/x86/include/asm/unwind.h:60 [inline]
RIP: 0010:arch_stack_walk+0xd7/0x140 arch/x86/kernel/stacktrace.c:24
Code: eb 1b 65 48 8b 04 25 80 6d 02 00 4c 39 e0 74 0a 49 8b 8c 24 98 0e 00 00 eb 03 48 89 e9 48 8d bd 70 ff ff ff 4c 89 e6 4c 89 fa <e8> 84 1a 06 00 83 bd 70 ff ff ff 00 74 36 48 8d 9d 70 ff ff ff 0f
RSP: 0018:ffffc90006300000 EFLAGS: 00010246
RAX: ffff888160dee2c0 RBX: 1ffff92000c6001e RCX: ffffc90006300090
RDX: 0000000000000000 RSI: ffff888160dee2c0 RDI: ffffc90006300000
RBP: ffffc90006300090 R08: dffffc0000000000 R09: ffffc900063000e0
R10: fffff52000c6001f R11: 0000000000000000 R12: ffff888160dee2c0
R13: ffffffff815bebe0 R14: ffffc900063000e0 R15: 0000000000000000
FS: 00007f7245a42700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900062ffff8 CR3: 00000001067f6000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
stack_trace_save+0x11b/0x1e0 kernel/stacktrace.c:121
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:428 [inline]
__kasan_slab_alloc+0xb2/0xe0 mm/kasan/common.c:461
kasan_slab_alloc include/linux/kasan.h:259 [inline]
slab_post_alloc_hook mm/slab.h:583 [inline]
slab_alloc_node mm/slub.c:2948 [inline]
slab_alloc mm/slub.c:2956 [inline]
kmem_cache_alloc+0x1a2/0x380 mm/slub.c:2961
__d_alloc+0x2d/0x6b0 fs/dcache.c:1709
d_alloc fs/dcache.c:1788 [inline]
d_alloc_parallel+0xf3/0x1360 fs/dcache.c:2540
__lookup_slow+0x14e/0x400 fs/namei.c:1613
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628
lookup_slow fs/namei.c:1645 [inline]
walk_component+0x516/0x790 fs/namei.c:1940
lookup_last fs/namei.c:2389 [inline]
path_lookupat+0x19d/0x6c0 fs/namei.c:2413
filename_lookup+0x23f/0x6c0 fs/namei.c:2446
user_path_at_empty+0x40/0x50 fs/namei.c:2726
user_path_at include/linux/namei.h:59 [inline]
do_fchownat+0xed/0x240 fs/open.c:699
__do_sys_lchown fs/open.c:730 [inline]
__se_sys_lchown fs/open.c:728 [inline]
__x64_sys_lchown+0x85/0x90 fs/open.c:728
do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f72468ece99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7245a42168 EFLAGS: 00000246 ORIG_RAX: 000000000000005e
RAX: ffffffffffffffda RBX: 00007f7246a00030 RCX: 00007f72468ece99
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00000000200002c0
RBP: 00007f7246946ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc1220ba9f R14: 00007f7245a42300 R15: 0000000000022000
Modules linked in:
---[ end trace 19ecb0b307dd9696 ]---
RIP: 0010:unwind_start arch/x86/include/asm/unwind.h:60 [inline]
RIP: 0010:arch_stack_walk+0xd7/0x140 arch/x86/kernel/stacktrace.c:24
Code: eb 1b 65 48 8b 04 25 80 6d 02 00 4c 39 e0 74 0a 49 8b 8c 24 98 0e 00 00 eb 03 48 89 e9 48 8d bd 70 ff ff ff 4c 89 e6 4c 89 fa <e8> 84 1a 06 00 83 bd 70 ff ff ff 00 74 36 48 8d 9d 70 ff ff ff 0f
RSP: 0018:ffffc90006300000 EFLAGS: 00010246
RAX: ffff888160dee2c0 RBX: 1ffff92000c6001e RCX: ffffc90006300090
RDX: 0000000000000000 RSI: ffff888160dee2c0 RDI: ffffc90006300000
RBP: ffffc90006300090 R08: dffffc0000000000 R09: ffffc900063000e0
R10: fffff52000c6001f R11: 0000000000000000 R12: ffff888160dee2c0
R13: ffffffff815bebe0 R14: ffffc900063000e0 R15: 0000000000000000
FS: 00007f7245a42700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900062ffff8 CR3: 00000001067f6000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: eb 1b jmp 0x1d
2: 65 48 8b 04 25 80 6d mov %gs:0x26d80,%rax
9: 02 00
b: 4c 39 e0 cmp %r12,%rax
e: 74 0a je 0x1a
10: 49 8b 8c 24 98 0e 00 mov 0xe98(%r12),%rcx
17: 00
18: eb 03 jmp 0x1d
1a: 48 89 e9 mov %rbp,%rcx
1d: 48 8d bd 70 ff ff ff lea -0x90(%rbp),%rdi
24: 4c 89 e6 mov %r12,%rsi
27: 4c 89 fa mov %r15,%rdx
* 2a: e8 84 1a 06 00 callq 0x61ab3 <-- trapping instruction
2f: 83 bd 70 ff ff ff 00 cmpl $0x0,-0x90(%rbp)
36: 74 36 je 0x6e
38: 48 8d 9d 70 ff ff ff lea -0x90(%rbp),%rbx
3f: 0f .byte 0xf


---
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syzbot

unread,
Dec 18, 2021, 3:49:23 PM12/18/21
to syzkaller-a...@googlegroups.com
syzbot has found a reproducer for the following issue on:

HEAD commit: afc997898ece Merge 5.10.85 into android12-5.10-lts
git tree: android12-5.10-lts
console output: https://syzkaller.appspot.com/x/log.txt?x=1178faa3b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=977f5eaa96dd4962
dashboard link: https://syzkaller.appspot.com/bug?extid=0e8eb11b3f62074b4b6f
compiler: Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11eac293b00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=136e67cdb00000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+0e8eb1...@syzkaller.appspotmail.com

BUG: stack guard page was hit at ffffc90000b2fff8 (stack is ffffc90000b30000..ffffc90000b37fff)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 365 Comm: syz-executor001 Not tainted 5.10.85-syzkaller-00573-gafc997898ece #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:unwind_start arch/x86/include/asm/unwind.h:60 [inline]
RIP: 0010:unwind_start arch/x86/include/asm/unwind.h:60 [inline] arch/x86/kernel/stacktrace.c:24
RIP: 0010:arch_stack_walk+0xd7/0x140 arch/x86/kernel/stacktrace.c:24 arch/x86/kernel/stacktrace.c:24
Code: eb 1b 65 48 8b 04 25 80 6d 02 00 4c 39 e0 74 0a 49 8b 8c 24 98 0e 00 00 eb 03 48 89 e9 48 8d bd 70 ff ff ff 4c 89 e6 4c 89 fa <e8> 84 1a 06 00 83 bd 70 ff ff ff 00 74 36 48 8d 9d 70 ff ff ff 0f
RSP: 0018:ffffc90000b30000 EFLAGS: 00010246
RAX: ffff8881073a2780 RBX: 1ffff9200016601e RCX: ffffc90000b30090
RDX: 0000000000000000 RSI: ffff8881073a2780 RDI: ffffc90000b30000
RBP: ffffc90000b30090 R08: dffffc0000000000 R09: ffffc90000b300e0
R10: fffff5200016601f R11: 0000000000000000 R12: ffff8881073a2780
R13: ffffffff815bebe0 R14: ffffc90000b300e0 R15: 0000000000000000
FS: 0000555556d1b3c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000b2fff8 CR3: 00000001073e0000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
stack_trace_save+0x11b/0x1e0 kernel/stacktrace.c:121 kernel/stacktrace.c:121
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:428 [inline]
kasan_save_stack mm/kasan/common.c:38 [inline] mm/kasan/common.c:461
kasan_set_track mm/kasan/common.c:46 [inline] mm/kasan/common.c:461
set_alloc_info mm/kasan/common.c:428 [inline] mm/kasan/common.c:461
__kasan_slab_alloc+0xb2/0xe0 mm/kasan/common.c:461 mm/kasan/common.c:461
kasan_slab_alloc include/linux/kasan.h:259 [inline]
slab_post_alloc_hook mm/slab.h:583 [inline]
slab_alloc_node mm/slub.c:2948 [inline]
slab_alloc mm/slub.c:2956 [inline]
kasan_slab_alloc include/linux/kasan.h:259 [inline] mm/slub.c:2961
slab_post_alloc_hook mm/slab.h:583 [inline] mm/slub.c:2961
slab_alloc_node mm/slub.c:2948 [inline] mm/slub.c:2961
slab_alloc mm/slub.c:2956 [inline] mm/slub.c:2961
kmem_cache_alloc+0x1a2/0x380 mm/slub.c:2961 mm/slub.c:2961
__d_alloc+0x2d/0x6b0 fs/dcache.c:1709 fs/dcache.c:1709
d_alloc fs/dcache.c:1788 [inline]
d_alloc fs/dcache.c:1788 [inline] fs/dcache.c:2540
d_alloc_parallel+0xf3/0x1360 fs/dcache.c:2540 fs/dcache.c:2540
__lookup_slow+0x14e/0x400 fs/namei.c:1613 fs/namei.c:1613
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_one_len+0x17f/0x2c0 fs/namei.c:2642 fs/namei.c:2642
incfs_lookup_dentry+0x5f/0xb0 fs/incfs/data_mgmt.c:211 fs/incfs/data_mgmt.c:211
dir_lookup+0x3b8/0x6e0 fs/incfs/vfs.c:967 fs/incfs/vfs.c:967
__lookup_slow+0x2b3/0x400 fs/namei.c:1628 fs/namei.c:1628
lookup_slow fs/namei.c:1645 [inline]
lookup_slow fs/namei.c:1645 [inline] fs/namei.c:1940
walk_component+0x516/0x790 fs/namei.c:1940 fs/namei.c:1940
lookup_last fs/namei.c:2389 [inline]
lookup_last fs/namei.c:2389 [inline] fs/namei.c:2413
path_lookupat+0x19d/0x6c0 fs/namei.c:2413 fs/namei.c:2413
filename_lookup+0x23f/0x6c0 fs/namei.c:2446 fs/namei.c:2446
user_path_at_empty+0x40/0x50 fs/namei.c:2726 fs/namei.c:2726
user_path_at include/linux/namei.h:59 [inline]
user_path_at include/linux/namei.h:59 [inline] fs/open.c:699
do_fchownat+0xed/0x240 fs/open.c:699 fs/open.c:699
__do_sys_lchown fs/open.c:730 [inline]
__se_sys_lchown fs/open.c:728 [inline]
__do_sys_lchown fs/open.c:730 [inline] fs/open.c:728
__se_sys_lchown fs/open.c:728 [inline] fs/open.c:728
__x64_sys_lchown+0x85/0x90 fs/open.c:728 fs/open.c:728
do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f4cdf0e9df9
Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 c4 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd7ba36878 EFLAGS: 00000246 ORIG_RAX: 000000000000005e
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4cdf0e9df9
RDX: 00000000ffffffff RSI: 0000000000000000 RDI: 00000000200002c0
RBP: 00007ffd7ba36880 R08: 00007f4cdf0a8360 R09: 00007f4cdf0a8360
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace d4f6ceec398be156 ]---
RIP: 0010:unwind_start arch/x86/include/asm/unwind.h:60 [inline]
RIP: 0010:unwind_start arch/x86/include/asm/unwind.h:60 [inline] arch/x86/kernel/stacktrace.c:24
RIP: 0010:arch_stack_walk+0xd7/0x140 arch/x86/kernel/stacktrace.c:24 arch/x86/kernel/stacktrace.c:24
Code: eb 1b 65 48 8b 04 25 80 6d 02 00 4c 39 e0 74 0a 49 8b 8c 24 98 0e 00 00 eb 03 48 89 e9 48 8d bd 70 ff ff ff 4c 89 e6 4c 89 fa <e8> 84 1a 06 00 83 bd 70 ff ff ff 00 74 36 48 8d 9d 70 ff ff ff 0f
RSP: 0018:ffffc90000b30000 EFLAGS: 00010246
RAX: ffff8881073a2780 RBX: 1ffff9200016601e RCX: ffffc90000b30090
RDX: 0000000000000000 RSI: ffff8881073a2780 RDI: ffffc90000b30000
RBP: ffffc90000b30090 R08: dffffc0000000000 R09: ffffc90000b300e0
R10: fffff5200016601f R11: 0000000000000000 R12: ffff8881073a2780
R13: ffffffff815bebe0 R14: ffffc90000b300e0 R15: 0000000000000000
FS: 0000555556d1b3c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90000b2fff8 CR3: 00000001073e0000 CR4: 00000000003506b0
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