------------[ cut here ]------------
kernfs_put: syz0/pids.events: released with incorrect active_ref 0
WARNING: CPU: 0 PID: 7168 at fs/kernfs/dir.c:531 kernfs_put.part.0+0x433/0x540
Modules linked in:
CPU: 0 PID: 7168 Comm: kworker/0:1 Not tainted 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
------------[ cut here ]------------
Workqueue: events kernfs_notify_workfn
WARNING: CPU: 1 PID: 127 at fs/kernfs/dir.c:504 kernfs_get.part.0+0x69/0x80
Modules linked in:
RIP: 0010:kernfs_put.part.0+0x433/0x540
CPU: 1 PID: 127 Comm: systemd-udevd Not tainted 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:kernfs_get.part.0+0x69/0x80
Code: 03 80 3c 18 00 0f 85 ea 00 00 00 4d 8b 7d 38 e8 53 fc a6 ff 48 8b 14 24 44 89 f1 4c 89 fe 48 c7 c7 e0 5b 72 84 e8 13 aa 6c 02 <0f> 0b e9 b9 fc ff ff 48 89 ef e8 0e b3 d9 ff e9 c1 fd ff ff e8 04
Code: 31 ff 89 ee e8 a8 fd a6 ff 85 ed 74 18 e8 cf 00 a7 ff be 04 00 00 00 48 89 df e8 d2 ba d9 ff f0 ff 03 5b 5d c3 e8 b7 00 a7 ff <0f> 0b eb df 48 89 df e8 7b b7 d9 ff eb c6 66 0f 1f 84 00 00 00 00
RSP: 0018:ffff88806cf09c80 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff88801a6a2658 RCX: 0000000000000100
RSP: 0018:ffff888046bc7bd8 EFLAGS: 00010286
RDX: ffff888016efd040 RSI: ffffffff819df849 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: 1ffffffff0a01e40 R14: ffff88801a6a2658 R15: ffff88800d924130
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
FS: 00007f728b2428c0(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
RDX: ffff88800ebfd040 RSI: ffffffff812bd348 RDI: ffffed1008d78f6d
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
RBP: ffff88801a6a2690 R08: 0000000000000005 R09: 0000000000000000
CR2: 000055555570ac58 CR3: 000000000949c000 CR4: 0000000000350ee0
R10: 0000000080000000 R11: 0000000000000001 R12: ffff88801a6a2658
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
R13: ffff888041ac62b8 R14: 0000000000000000 R15: ffff888014c224d8
kernfs_get+0x1b/0x30
FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
kernfs_notify+0x180/0x350
cgroup_file_notify+0xf5/0x1a0
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa912795000 CR3: 000000000945e000 CR4: 0000000000350ef0
call_timer_fn+0x17d/0x5f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
kernfs_put+0x42/0x50
__run_timers.part.0+0x65e/0xa50
kernfs_notify_workfn+0x417/0x560
process_one_work+0xa0f/0x1690
run_timer_softirq+0xae/0x1a0
__do_softirq+0x1c8/0x8cc
__irq_exit_rcu+0x113/0x170
irq_exit_rcu+0x5/0x20
sysvec_apic_timer_interrupt+0x8e/0xc0
worker_thread+0x637/0x1250
asm_sysvec_apic_timer_interrupt+0x1b/0x20
RIP: 0010:__orc_find+0x5b/0xf0
kthread+0x2ed/0x3a0
Code: ff df 49 89 fe 48 89 fd eb 0c 48 8d 6b 04 49 89 de 49 39 ec 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 <48> d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 48 89
RSP: 0018:ffff8880184af5f8 EFLAGS: 00000202
ret_from_fork+0x22/0x30
RAX: 0000000000000007 RBX: ffffffff859a35d0 RCX: ffffffff817c3e0e
RDX: 0000000000000007 RSI: ffffffff85cbfdc4 RDI: ffffffff859a35b0
irq event stamp: 449953
RBP: ffffffff859a35b0 R08: ffffffff85cbfdc4 R09: ffffffff85cbfb94
R10: ffffed1003095ee5 R11: 000000000003403b R12: ffffffff859a35cc
R13: ffffffff859a35b0 R14: ffffffff859a35b0 R15: dffffc0000000000
hardirqs last enabled at (449963): [] console_emit_next_record.constprop.0+0x648/0x800
hardirqs last disabled at (449972): [] console_emit_next_record.constprop.0+0x667/0x800
softirqs last enabled at (449404): [] srcu_invoke_callbacks+0x1e5/0x3a0
unwind_next_frame+0x2b0/0x20a0
softirqs last disabled at (449400): [] srcu_invoke_callbacks+0x1b5/0x3a0
---[ end trace 0000000000000000 ]---
arch_stack_walk+0x83/0xf0
stack_trace_save+0x8c/0xc0
kasan_save_stack+0x1e/0x40
__kasan_slab_alloc+0x66/0x80
kmem_cache_alloc+0x1b1/0x490
__alloc_file+0x21/0x230
alloc_empty_file+0x6d/0x170
path_openat+0xe1/0x2890
do_filp_open+0x1aa/0x400
do_sys_openat2+0x16d/0x4c0
__x64_sys_openat+0x13f/0x1f0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f728b6f6f18
Code: 24 18 31 c0 41 83 e2 40 75 40 89 f0 25 00 00 41 00 3d 00 00 41 00 74 32 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 40 48 8b 4c 24 18 64 48 2b 0c 25 28 00 00 00
RSP: 002b:00007fffc984f520 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f728b2426c0 RCX: 00007f728b6f6f18
RDX: 0000000000090800 RSI: 000055f65644f2c0 RDI: 00000000ffffff9c
RBP: 000055f656489bf0 R08: 0000000000090800 R09: 000055f65644f2c0
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 000055f65644f2c0 R14: 000055f65644f2c0 R15: 000055f656447680
irq event stamp: 7498347
hardirqs last enabled at (7498346): [] _raw_spin_unlock_irq+0x1f/0x40
hardirqs last disabled at (7498347): [] _raw_spin_lock_irqsave+0x4e/0x50
softirqs last enabled at (7497450): [] __irq_exit_rcu+0x113/0x170
softirqs last disabled at (7498339): [] __irq_exit_rcu+0x113/0x170
---[ end trace 0000000000000000 ]---
==================================================================
BUG: KASAN: use-after-free in kernfs_get.part.0+0x5e/0x80
Write of size 4 at addr ffff88801a6a2658 by task systemd-udevd/127
CPU: 1 PID: 127 Comm: systemd-udevd Tainted: G W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
dump_stack_lvl+0x8b/0xb3
print_report.cold+0x5e/0x5e1
kasan_report+0xb1/0x1b0
kasan_check_range+0x35/0x1b0
kernfs_get.part.0+0x5e/0x80
kernfs_get+0x1b/0x30
kernfs_notify+0x180/0x350
cgroup_file_notify+0xf5/0x1a0
call_timer_fn+0x17d/0x5f0
__run_timers.part.0+0x65e/0xa50
run_timer_softirq+0xae/0x1a0
__do_softirq+0x1c8/0x8cc
__irq_exit_rcu+0x113/0x170
irq_exit_rcu+0x5/0x20
sysvec_apic_timer_interrupt+0x8e/0xc0
asm_sysvec_apic_timer_interrupt+0x1b/0x20
RIP: 0010:__orc_find+0x5b/0xf0
Code: ff df 49 89 fe 48 89 fd eb 0c 48 8d 6b 04 49 89 de 49 39 ec 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 <48> d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 48 89
RSP: 0018:ffff8880184af5f8 EFLAGS: 00000202
RAX: 0000000000000007 RBX: ffffffff859a35d0 RCX: ffffffff817c3e0e
RDX: 0000000000000007 RSI: ffffffff85cbfdc4 RDI: ffffffff859a35b0
RBP: ffffffff859a35b0 R08: ffffffff85cbfdc4 R09: ffffffff85cbfb94
R10: ffffed1003095ee5 R11: 000000000003403b R12: ffffffff859a35cc
R13: ffffffff859a35b0 R14: ffffffff859a35b0 R15: dffffc0000000000
unwind_next_frame+0x2b0/0x20a0
arch_stack_walk+0x83/0xf0
stack_trace_save+0x8c/0xc0
kasan_save_stack+0x1e/0x40
__kasan_slab_alloc+0x66/0x80
kmem_cache_alloc+0x1b1/0x490
__alloc_file+0x21/0x230
alloc_empty_file+0x6d/0x170
path_openat+0xe1/0x2890
do_filp_open+0x1aa/0x400
do_sys_openat2+0x16d/0x4c0
__x64_sys_openat+0x13f/0x1f0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f728b6f6f18
Code: 24 18 31 c0 41 83 e2 40 75 40 89 f0 25 00 00 41 00 3d 00 00 41 00 74 32 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 40 48 8b 4c 24 18 64 48 2b 0c 25 28 00 00 00
RSP: 002b:00007fffc984f520 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f728b2426c0 RCX: 00007f728b6f6f18
RDX: 0000000000090800 RSI: 000055f65644f2c0 RDI: 00000000ffffff9c
RBP: 000055f656489bf0 R08: 0000000000090800 R09: 000055f65644f2c0
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 000055f65644f2c0 R14: 000055f65644f2c0 R15: 000055f656447680
Allocated by task 295:
kasan_save_stack+0x1e/0x40
__kasan_slab_alloc+0x66/0x80
kmem_cache_alloc+0x1b1/0x490
__kernfs_new_node+0xd4/0x8b0
kernfs_new_node+0x93/0x120
__kernfs_create_file+0x51/0x350
cgroup_addrm_files+0x3e2/0x9d0
css_populate_dir+0x19b/0x450
cgroup_apply_control_enable+0x3ae/0xa40
cgroup_mkdir+0x824/0x11f0
kernfs_iop_mkdir+0x149/0x1d0
vfs_mkdir+0x417/0x6a0
do_mkdirat+0x17b/0x2e0
__x64_sys_mkdir+0xf2/0x140
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
Freed by task 7168:
kasan_save_stack+0x1e/0x40
kasan_set_track+0x21/0x30
kasan_set_free_info+0x20/0x30
__kasan_slab_free+0x108/0x190
kmem_cache_free+0xfb/0x600
kernfs_put.part.0+0x2c7/0x540
kernfs_put+0x42/0x50
kernfs_notify_workfn+0x417/0x560
process_one_work+0xa0f/0x1690
worker_thread+0x637/0x1250
kthread+0x2ed/0x3a0
ret_from_fork+0x22/0x30
The buggy address belongs to the object at ffff88801a6a2658
which belongs to the cache kernfs_node_cache of size 168
The buggy address is located 0 bytes inside of
168-byte region [ffff88801a6a2658, ffff88801a6a2700)
The buggy address belongs to the physical page:
page:00000000e170545b refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1a6a2
flags: 0x100000000000200(slab|node=0|zone=1)
raw: 0100000000000200 0000000000000000 dead000000000122 ffff8880080358c0
raw: 0000000000000000 0000000000110011 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff88801a6a2500: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc 00 00
ffff88801a6a2580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88801a6a2600: 00 00 00 fc fc fc fc fc fc fc fc fa fb fb fb fb
^
ffff88801a6a2680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88801a6a2700: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
==================================================================
BUG: unable to handle page fault for address: 000007de000037c8
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 14808 Comm: apt-get Tainted: G B W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:qlist_free_all+0xaf/0x190
Code: 80 4c 01 c2 0f 82 f0 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 c3 76 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 76 7b 03 <48> 8b 48 08 48 89 c2 f6 c1 01 0f 85 b6 00 00 00 0f 1f 44 00 00 48
RSP: 0018:ffff888044a17c68 EFLAGS: 00010207
RAX: 000007de000037c0 RBX: 00070000000dffff RCX: 1ffffffff0b1d66d
RDX: 00070000800dffff RSI: 0000000000000008 RDI: ffffffff81771eb1
RBP: 0000000000000000 R08: 00070000000dffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff888044a17ca8 R14: 0000000000000000 R15: ffff88800d5a90e6
FS: 00007ff0fc5bc800(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000007de000037c8 CR3: 0000000043ad6000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
kasan_quarantine_reduce+0x180/0x200
__kasan_slab_alloc+0x78/0x80
kmem_cache_alloc+0x1b1/0x490
getname_flags.part.0+0x50/0x4f0
getname_flags+0x9a/0xe0
vfs_fstatat+0x73/0xb0
__do_sys_newstat+0x88/0x110
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7ff0fcbd23a6
Code: 00 00 75 05 48 83 c4 18 c3 e8 96 f2 01 00 66 0f 1f 44 00 00 41 89 f8 48 89 f7 48 89 d6 41 83 f8 01 77 29 b8 04 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 02 c3 90 48 8b 15 b9 fa 0c 00 f7 d8 64 89 02
RSP: 002b:00007fff268b5518 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00007fff268b5840 RCX: 00007ff0fcbd23a6
RDX: 00007fff268b5520 RSI: 00007fff268b5520 RDI: 000055695a43b490
RBP: 00007fff268b5650 R08: 0000000000000001 R09: 0000000000000013
R10: 0000000000000012 R11: 0000000000000246 R12: 00007fff268b5660
R13: 000055695a433460 R14: 00007fff268b56c0 R15: 000055695a4c2d88
Modules linked in:
CR2: 000007de000037c8
---[ end trace 0000000000000000 ]---
RIP: 0010:qlist_free_all+0xaf/0x190
Code: 80 4c 01 c2 0f 82 f0 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 c3 76 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 76 7b 03 <48> 8b 48 08 48 89 c2 f6 c1 01 0f 85 b6 00 00 00 0f 1f 44 00 00 48
RSP: 0018:ffff888044a17c68 EFLAGS: 00010207
RAX: 000007de000037c0 RBX: 00070000000dffff RCX: 1ffffffff0b1d66d
RDX: 00070000800dffff RSI: 0000000000000008 RDI: ffffffff81771eb1
RBP: 0000000000000000 R08: 00070000000dffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff888044a17ca8 R14: 0000000000000000 R15: ffff88800d5a90e6
FS: 00007ff0fc5bc800(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000007de000037c8 CR3: 0000000043ad6000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
------------[ cut here ]------------
WARNING: CPU: 1 PID: 112 at mm/kasan/shadow.c:134 kasan_unpoison+0x42/0x50
Modules linked in:
CPU: 1 PID: 112 Comm: systemd-journal Tainted: G B D W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:kasan_unpoison+0x42/0x50
Code: 89 fb 48 83 c6 01 e8 7d fe ff ff 48 89 e8 83 e0 07 74 14 48 ba 00 00 00 00 00 fc ff df 48 01 eb 48 c1 eb 03 88 04 13 5b 5d c3 <0f> 0b c3 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 48 89 f8 41 56 48
RSP: 0018:ffff8880187a74b8 EFLAGS: 00010206
RAX: 0000000003113680 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000170 RDI: ffff88800d5a90e6
RBP: ffff88800784f780 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800d5a90e6
R13: 0000000000092cc0 R14: 0000000000092cc0 R15: 0000000000092cc0
FS: 00007fbcb7b90900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000007de000037c8 CR3: 000000000eb3e000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
__kasan_slab_alloc+0x2c/0x80
kmem_cache_alloc+0x1b1/0x490
__create_object.isra.0+0x3d/0xc10
__kmalloc+0x25f/0x440
__d_alloc+0x68e/0x990
d_alloc_parallel+0x10a/0x1c00
__lookup_slow+0x193/0x490
walk_component+0x411/0x6a0
link_path_walk.part.0+0x7f8/0xf80
path_openat+0x25d/0x2890
do_filp_open+0x1aa/0x400
do_sys_openat2+0x16d/0x4c0
__x64_sys_openat+0x13f/0x1f0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fbcb8449c64
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 36 61 f9 ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 68 61 f9 ff 8b 44
RSP: 002b:00007ffda40d6fd0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000558f685bed60 RCX: 00007fbcb8449c64
RDX: 0000000000080802 RSI: 0000558f685d7740 RDI: 00000000ffffff9c
RBP: 0000558f685d7740 R08: 0000000000000000 R09: ffffffffffffff01
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080802
R13: 00000000fffffffa R14: 0000558f68600840 R15: 0000000000000002
irq event stamp: 4027968
hardirqs last enabled at (4027967): [] _raw_spin_unlock_irqrestore+0x28/0x50
hardirqs last disabled at (4027968): [] __schedule+0x11d9/0x24a0
softirqs last enabled at (4027698): [] fpu_clone+0x3be/0xb00
softirqs last disabled at (4027696): [] fpu_clone+0x331/0xb00
---[ end trace 0000000000000000 ]---
BUG: unable to handle page fault for address: fffffbfff1100885
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 6dfd0067 P4D 6dfd0067 PUD 6df94067 PMD 0
Oops: 0000 [#2] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 14793 Comm: syz-executor Tainted: G B D W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:rb_erase+0x81/0x1130
Code: 8b 45 10 48 85 c0 0f 84 34 05 00 00 4d 85 f6 0f 84 ac 06 00 00 48 ba 00 00 00 00 00 fc ff df 49 8d 7e 10 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 53 0c 00 00 49 8b 5e 10 4c 89 f5 48 ba 00 00 00
RSP: 0018:ffff88806cf09d70 EFLAGS: 00010012
RAX: ffff88804a2734a8 RBX: ffff88801b793a00 RCX: 1ffffffff1100885
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8880442b
RBP: 0000000000000246 R08: 0000000000000001 R09: ffff88806cf09d33
R10: ffffed100d9e13a6 R11: 0000000000000001 R12: ffff88800d5a90e6
R13: ffff88800d5a914e R14: ffffffff8880441b R15: ffffffff86e0c040
FS: 0000555556907400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff1100885 CR3: 000000001a966000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
find_and_remove_object+0x81/0x160
kmemleak_free+0x21/0x30
kfree+0xbb/0x5d0
__d_free_external+0x3f/0x60
rcu_core+0x7e2/0x2080
__do_softirq+0x1c8/0x8cc
__irq_exit_rcu+0x113/0x170
irq_exit_rcu+0x5/0x20
sysvec_apic_timer_interrupt+0x8e/0xc0
asm_sysvec_apic_timer_interrupt+0x1b/0x20
RIP: 0010:_raw_spin_unlock_irqrestore+0x2e/0x50
Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 4a 51 0d fd 48 89 ef e8 b2 d2 0d fd 80 e7 02 74 06 e8 e8 a8 2f fd fb bf 01 00 00 00 8d 74 03 fd 65 8b 05 06 51 e6 7b 85 c0 74 03 5b 5d c3 0f 1f 44
RSP: 0018:ffff888047247bd8 EFLAGS: 00000246
RAX: 0000000000000007 RBX: 0000000000000286 RCX: 1ffffffff0b1d66d
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffff888007850870 R08: 0000000000000000 R09: 0000000000000000
R10: ffffed1000f0a10e R11: 0000000000000001 R12: ffffffff87600000
R13: ffffed1000f0a116 R14: ffffffff86d6a000 R15: 0000000000000286
scan_gray_list+0x192/0x3f0
kmemleak_scan+0x85a/0x16f0
kmemleak_write+0x56c/0x680
full_proxy_write+0x11d/0x190
vfs_write+0x264/0xac0
ksys_write+0x127/0x250
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f50d946f5c3
Code: 16 00 00 00 eb ae 90 b8 6e 00 00 00 eb a6 e8 44 ef 04 00 0f 1f 40 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
RSP: 002b:00007ffcb95ec498 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffcb95ecad8 RCX: 00007f50d946f5c3
RDX: 0000000000000004 RSI: 00007f50d9525ed9 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000477 R09: 00007ffcb95ef080
R10: 00007ffcb95ef090 R11: 0000000000000246 R12: 00007f50d9471b10
R13: 00007ffcb95edee3 R14: 0000000000000000 R15: 0000000000117302
Modules linked in:
CR2: fffffbfff1100885
---[ end trace 0000000000000000 ]---
RIP: 0010:qlist_free_all+0xaf/0x190
Code: 80 4c 01 c2 0f 82 f0 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 c3 76 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 76 7b 03 <48> 8b 48 08 48 89 c2 f6 c1 01 0f 85 b6 00 00 00 0f 1f 44 00 00 48
RSP: 0018:ffff888044a17c68 EFLAGS: 00010207
RAX: 000007de000037c0 RBX: 00070000000dffff RCX: 1ffffffff0b1d66d
RDX: 00070000800dffff RSI: 0000000000000008 RDI: ffffffff81771eb1
RBP: 0000000000000000 R08: 00070000000dffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff888044a17ca8 R14: 0000000000000000 R15: ffff88800d5a90e6
FS: 0000555556907400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff1100885 CR3: 000000001a966000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: df 49 89 fisttps -0x77(%rcx)
3: fe 48 89 decb -0x77(%rax)
6: fd std
7: eb 0c jmp 0x15
9: 48 8d 6b 04 lea 0x4(%rbx),%rbp
d: 49 89 de mov %rbx,%r14
10: 49 39 ec cmp %rbp,%r12
13: 72 4d jb 0x62
15: 4c 89 e0 mov %r12,%rax
18: 48 29 e8 sub %rbp,%rax
1b: 48 89 c2 mov %rax,%rdx
1e: 48 c1 e8 3f shr $0x3f,%rax
22: 48 c1 fa 02 sar $0x2,%rdx
26: 48 01 d0 add %rdx,%rax
* 29: 48 d1 f8 sar %rax <-- trapping instruction
2c: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx
31: 48 89 d8 mov %rbx,%rax
34: 48 c1 e8 03 shr $0x3,%rax
38: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx
3d: 48 rex.W
3e: 89 .byte 0x89