Extracting prog: 3m40.022352281s
Minimizing prog: 13m54.462367914s
Simplifying prog options: 6m0.909521214s
Extracting C: 50.934071421s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-socket$packet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket$inet6_sctp-sendto$inet6
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
r1 = socket$packet(0x11, 0x2, 0x300)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)=@newqdisc={0x58, 0x24, 0x3fe3aa0262d8c583, 0x0, 0x25dfdbfd, {0x0, 0x0, 0x0, r2, {0x0, 0xe}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_sfb={{0x8}, {0x2c, 0x2, @TCA_SFB_PARMS={0x28, 0x1, {0x4, 0xfffffffc, 0x2, 0xa, 0x6, 0x1, 0x6cb, 0x3b52, 0x2}}}}]}, 0x58}}, 0x0)
r3 = socket$inet6_sctp(0xa, 0x1, 0x84)
sendto$inet6(r3, &(0x7f0000000240)="8a", 0x1, 0x51, &(0x7f0000000080)={0xa, 0x3, 0x1, @local, 0x9}, 0x1c)

program crashed: BUG: corrupted list in dst_destroy
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=45.381093816s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-socket$packet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket$inet6_sctp
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
r1 = socket$packet(0x11, 0x2, 0x300)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)=@newqdisc={0x58, 0x24, 0x3fe3aa0262d8c583, 0x0, 0x25dfdbfd, {0x0, 0x0, 0x0, r2, {0x0, 0xe}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_sfb={{0x8}, {0x2c, 0x2, @TCA_SFB_PARMS={0x28, 0x1, {0x4, 0xfffffffc, 0x2, 0xa, 0x6, 0x1, 0x6cb, 0x3b52, 0x2}}}}]}, 0x58}}, 0x0)
socket$inet6_sctp(0xa, 0x1, 0x84)

program crashed: BUG: corrupted list in dst_destroy
testing program (duration=45.381093816s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-socket$packet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket(0x10, 0x3, 0x0)
r1 = socket$packet(0x11, 0x2, 0x300)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000280)=@newqdisc={0x58, 0x24, 0x3fe3aa0262d8c583, 0x0, 0x25dfdbfd, {0x0, 0x0, 0x0, r2, {0x0, 0xe}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_sfb={{0x8}, {0x2c, 0x2, @TCA_SFB_PARMS={0x28, 0x1, {0x4, 0xfffffffc, 0x2, 0xa, 0x6, 0x1, 0x6cb, 0x3b52, 0x2}}}}]}, 0x58}}, 0x0)

program crashed: BUG: corrupted list in dst_destroy
testing program (duration=45.381093816s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-socket$packet-ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
socket(0x10, 0x3, 0x0)
r0 = socket$packet(0x11, 0x2, 0x300)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00'})

program crashed: BUG: corrupted list in dst_destroy
testing program (duration=45.381093816s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-socket$packet
detailed listing:
executing program 0:
socket(0x10, 0x3, 0x0)
socket$packet(0x11, 0x2, 0x300)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=45.381093816s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket-ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
socket(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00'})

program crashed: BUG: corrupted list in dst_destroy
testing program (duration=45.381093816s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00'})

program crashed: BUG: corrupted list in dst_destroy
testing program (duration=45.381093816s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, 0x0)

program crashed: BUG: corrupted list in dst_destroy
extracting C reproducer
testing compiled C program (duration=45.381093816s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX
program did not crash
simplifying guilty program options
testing program (duration=45.381093816s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, 0x0)

program crashed: BUG: corrupted list in dst_destroy
extracting C reproducer
testing compiled C program (duration=45.381093816s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX
program did not crash
testing program (duration=45.381093816s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, 0x0)

program crashed: BUG: corrupted list in dst_destroy
extracting C reproducer
testing compiled C program (duration=45.381093816s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX
program did not crash
testing program (duration=45.381093816s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, 0x0)

program crashed: BUG: corrupted list in dst_destroy
validation run: crashed=true
testing program (duration=45.381093816s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, 0x0)

program crashed: BUG: corrupted list in dst_destroy
validation run: crashed=true
testing program (duration=45.381093816s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, 0x0)

program crashed: BUG: corrupted list in dst_destroy
validation run: crashed=true
reproducing took 29m42.624162563s
repro crashed as (corrupted=false):
list_del corruption, ffff88801cae0c90->next is NULL
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:53!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x190 lib/list_debug.c:52
Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41 5d 41 5e 41 5f e9 52 5c f8 06 cc 48 c7 c7 a0 e8 27 8c 48 89 de e8 12 51 6e fc 90 <0f> 0b 48 c7 c7 00 e9 27 8c 48 89 de e8 00 51 6e fc 90 0f 0b 4c 89
RSP: 0000:ffffc900001d7af8 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88801cae0c90 RCX: f66784adef672600
RDX: 0000000000000100 RSI: 0000000080000101 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc900001d7887 R09: 1ffff9200003af10
R10: dffffc0000000000 R11: fffff5200003af11 R12: 1ffff1100395c192
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125557000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f664e9bc4b4 CR3: 0000000020fe2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:132 [inline]
 __list_del_entry include/linux/list.h:223 [inline]
 list_del_init include/linux/list.h:295 [inline]
 dst_destroy+0x202/0x5a0 net/core/dst.c:163
 rcu_do_batch kernel/rcu/tree.c:2617 [inline]
 rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869
 handle_softirqs+0x22a/0x870 kernel/softirq.c:626
 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1067
 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x190 lib/list_debug.c:52
Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41 5d 41 5e 41 5f e9 52 5c f8 06 cc 48 c7 c7 a0 e8 27 8c 48 89 de e8 12 51 6e fc 90 <0f> 0b 48 c7 c7 00 e9 27 8c 48 89 de e8 00 51 6e fc 90 0f 0b 4c 89
RSP: 0000:ffffc900001d7af8 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88801cae0c90 RCX: f66784adef672600
RDX: 0000000000000100 RSI: 0000000080000101 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc900001d7887 R09: 1ffff9200003af10
R10: dffffc0000000000 R11: fffff5200003af11 R12: 1ffff1100395c192
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125557000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f664e9bc4b4 CR3: 0000000020fe2000 CR4: 00000000003526f0

final repro crashed as (corrupted=false):
list_del corruption, ffff88801cae0c90->next is NULL
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:53!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x190 lib/list_debug.c:52
Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41 5d 41 5e 41 5f e9 52 5c f8 06 cc 48 c7 c7 a0 e8 27 8c 48 89 de e8 12 51 6e fc 90 <0f> 0b 48 c7 c7 00 e9 27 8c 48 89 de e8 00 51 6e fc 90 0f 0b 4c 89
RSP: 0000:ffffc900001d7af8 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88801cae0c90 RCX: f66784adef672600
RDX: 0000000000000100 RSI: 0000000080000101 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc900001d7887 R09: 1ffff9200003af10
R10: dffffc0000000000 R11: fffff5200003af11 R12: 1ffff1100395c192
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125557000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f664e9bc4b4 CR3: 0000000020fe2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:132 [inline]
 __list_del_entry include/linux/list.h:223 [inline]
 list_del_init include/linux/list.h:295 [inline]
 dst_destroy+0x202/0x5a0 net/core/dst.c:163
 rcu_do_batch kernel/rcu/tree.c:2617 [inline]
 rcu_core+0x7cd/0x1070 kernel/rcu/tree.c:2869
 handle_softirqs+0x22a/0x870 kernel/softirq.c:626
 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1067
 smpboot_thread_fn+0x541/0xa50 kernel/smpboot.c:160
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0xdf/0x190 lib/list_debug.c:52
Code: 49 39 1f 0f 85 9e 00 00 00 b0 01 5b 41 5c 41 5d 41 5e 41 5f e9 52 5c f8 06 cc 48 c7 c7 a0 e8 27 8c 48 89 de e8 12 51 6e fc 90 <0f> 0b 48 c7 c7 00 e9 27 8c 48 89 de e8 00 51 6e fc 90 0f 0b 4c 89
RSP: 0000:ffffc900001d7af8 EFLAGS: 00010046
RAX: 0000000000000033 RBX: ffff88801cae0c90 RCX: f66784adef672600
RDX: 0000000000000100 RSI: 0000000080000101 RDI: 0000000000000000
RBP: 0000000000000203 R08: ffffc900001d7887 R09: 1ffff9200003af10
R10: dffffc0000000000 R11: fffff5200003af11 R12: 1ffff1100395c192
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888125557000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f664e9bc4b4 CR3: 0000000020fe2000 CR4: 00000000003526f0