Extracting prog: 6m17.701210448s
Minimizing prog: 24m25.971607255s
Simplifying prog options: 15m14.747148082s
Extracting C: 5m14.241215761s
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:4 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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0)
write$rfkill(r0, &(0x7f0000000080)={0x0, 0x1, 0x3, 0x3, 0xfd}, 0x8)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0)
write$rfkill(r0, &(0x7f0000000080)={0x0, 0x1, 0x3, 0x3, 0xfd}, 0x8)

program crashed: lost connection to test machine
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): openat$rfkill
detailed listing:
executing program 0:
openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): write$rfkill
detailed listing:
executing program 0:
write$rfkill(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x1, 0x3, 0x3, 0xfd}, 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, 0x0, 0x801, 0x0)
write$rfkill(r0, &(0x7f0000000080)={0x0, 0x1, 0x3, 0x3, 0xfd}, 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0)
write$rfkill(r0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): openat$rfkill-write$rfkill
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0)
write$rfkill(r0, &(0x7f0000000080)={0x0, 0x1, 0x3, 0x3, 0xfd}, 0x8)

program crashed: lost connection to test machine
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$rfkill-write$rfkill
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0)
write$rfkill(r0, &(0x7f0000000080)={0x0, 0x1, 0x3, 0x3, 0xfd}, 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0)
write$rfkill(r0, &(0x7f0000000080)={0x0, 0x1, 0x3, 0x3, 0xfd}, 0x8)

program crashed: lost connection to test machine
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0)
write$rfkill(r0, &(0x7f0000000080)={0x0, 0x1, 0x3, 0x3, 0xfd}, 0x8)

program did not crash
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0)
write$rfkill(r0, &(0x7f0000000080)={0x0, 0x1, 0x3, 0x3, 0xfd}, 0x8)

program crashed: lost connection to test machine
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): openat$rfkill-write$rfkill
detailed listing:
executing program 0:
r0 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x801, 0x0)
write$rfkill(r0, &(0x7f0000000080)={0x0, 0x1, 0x3, 0x3, 0xfd}, 0x8)

program crashed: WARNING in call_timer_fn
validation run: crashed=true
reproducing took 1h9m7.345895445s
repro crashed as (corrupted=false):
------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci0
WARNING: kernel/workqueue.c:2258 at __queue_work+0xd38/0xfb0 kernel/workqueue.c:2256, CPU#1: syz-executor/10319
Modules linked in:
CPU: 1 UID: 0 PID: 10319 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:__queue_work+0xd38/0xfb0 kernel/workqueue.c:2256
Code: 42 80 3c 20 00 74 08 4c 89 ef e8 c3 fd 9a 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 80 eb a9 8b 4c 89 fa e8 b9 31 f9 ff 90 <0f> 0b 90 90 e9 1a f5 ff ff e8 ba bc 35 00 90 0f 0b 90 e9 dd fc ff
RSP: 0018:ffffc90000a08b10 EFLAGS: 00010046
RAX: 19fb78d412a92300 RBX: 0000000000000100 RCX: ffff888030795ac0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 1ffff11005777438 R08: ffff8880b8724293 R09: 1ffff110170e4852
R10: dffffc0000000000 R11: ffffed10170e4853 R12: dffffc0000000000
R13: ffff8880467f4990 R14: 0000000000000008 R15: ffff88802bbba178
FS:  00005555763fd500(0000) GS:ffff8881258be000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f914cf156c0 CR3: 0000000011fb0000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1793 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x646/0x860 kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403
 handle_softirqs+0x286/0x870 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:console_flush_all+0x7f4/0xb10 arch/x86/include/asm/irqflags.h:-1
Code: ff ff e8 7f 59 1f 00 90 0f 0b 90 e9 62 fc ff ff e8 71 59 1f 00 e8 2c d5 e5 09 48 85 db 74 c0 e8 62 59 1f 00 fb 48 8b 5c 24 18 <48> 8b 44 24 20 42 80 3c 20 00 74 08 48 89 df e8 28 9a 84 00 48 8b
RSP: 0018:ffffc9000d906640 EFLAGS: 00000293
RAX: ffffffff81a13cee RBX: ffffffff8edd3218 RCX: ffff888030795ac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000d906790 R08: ffffffff8fe48777 R09: 1ffffffff1fc90ee
R10: dffffc0000000000 R11: fffffbfff1fc90ef R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff8edd31c0
 __console_flush_and_unlock kernel/printk/printk.c:3258 [inline]
 console_unlock+0xbb/0x190 kernel/printk/printk.c:3298
 vprintk_emit+0x4c5/0x590 kernel/printk/printk.c:2423
 dev_vprintk_emit+0x337/0x3f0 drivers/base/core.c:4914
 dev_printk_emit+0xe0/0x130 drivers/base/core.c:4925
 __netdev_printk+0x3d7/0x4d0 net/core/dev.c:12699
 netdev_info+0x10a/0x160 net/core/dev.c:12754
 netif_change_name+0x88c/0x960 net/core/dev.c:1465
 do_setlink+0x9f6/0x41c0 net/core/rtnetlink.c:3131
 rtnl_changelink net/core/rtnetlink.c:3769 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3928 [inline]
 rtnl_newlink+0x1619/0x1c80 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:729
 __sys_sendto+0x3bd/0x520 net/socket.c:2231
 __do_sys_sendto net/socket.c:2238 [inline]
 __se_sys_sendto net/socket.c:2234 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2234
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f65a3590d5c
Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b
RSP: 002b:00007ffd3fea6110 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f65a43135c0 RCX: 00007f65a3590d5c
RDX: 0000000000000030 RSI: 00007f65a4313610 RDI: 0000000000000006
RBP: 0000000000000000 R08: 00007ffd3fea6164 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006
R13: 0000000000000000 R14: 00007f65a4313610 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	e8 7f 59 1f 00       	call   0x1f5984
   5:	90                   	nop
   6:	0f 0b                	ud2
   8:	90                   	nop
   9:	e9 62 fc ff ff       	jmp    0xfffffc70
   e:	e8 71 59 1f 00       	call   0x1f5984
  13:	e8 2c d5 e5 09       	call   0x9e5d544
  18:	48 85 db             	test   %rbx,%rbx
  1b:	74 c0                	je     0xffffffdd
  1d:	e8 62 59 1f 00       	call   0x1f5984
  22:	fb                   	sti
  23:	48 8b 5c 24 18       	mov    0x18(%rsp),%rbx
* 28:	48 8b 44 24 20       	mov    0x20(%rsp),%rax <-- trapping instruction
  2d:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  32:	74 08                	je     0x3c
  34:	48 89 df             	mov    %rbx,%rdi
  37:	e8 28 9a 84 00       	call   0x849a64
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b

final repro crashed as (corrupted=false):
------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci0
WARNING: kernel/workqueue.c:2258 at __queue_work+0xd38/0xfb0 kernel/workqueue.c:2256, CPU#1: syz-executor/10319
Modules linked in:
CPU: 1 UID: 0 PID: 10319 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:__queue_work+0xd38/0xfb0 kernel/workqueue.c:2256
Code: 42 80 3c 20 00 74 08 4c 89 ef e8 c3 fd 9a 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 80 eb a9 8b 4c 89 fa e8 b9 31 f9 ff 90 <0f> 0b 90 90 e9 1a f5 ff ff e8 ba bc 35 00 90 0f 0b 90 e9 dd fc ff
RSP: 0018:ffffc90000a08b10 EFLAGS: 00010046
RAX: 19fb78d412a92300 RBX: 0000000000000100 RCX: ffff888030795ac0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 1ffff11005777438 R08: ffff8880b8724293 R09: 1ffff110170e4852
R10: dffffc0000000000 R11: ffffed10170e4853 R12: dffffc0000000000
R13: ffff8880467f4990 R14: 0000000000000008 R15: ffff88802bbba178
FS:  00005555763fd500(0000) GS:ffff8881258be000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f914cf156c0 CR3: 0000000011fb0000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1793 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x646/0x860 kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403
 handle_softirqs+0x286/0x870 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:console_flush_all+0x7f4/0xb10 arch/x86/include/asm/irqflags.h:-1
Code: ff ff e8 7f 59 1f 00 90 0f 0b 90 e9 62 fc ff ff e8 71 59 1f 00 e8 2c d5 e5 09 48 85 db 74 c0 e8 62 59 1f 00 fb 48 8b 5c 24 18 <48> 8b 44 24 20 42 80 3c 20 00 74 08 48 89 df e8 28 9a 84 00 48 8b
RSP: 0018:ffffc9000d906640 EFLAGS: 00000293
RAX: ffffffff81a13cee RBX: ffffffff8edd3218 RCX: ffff888030795ac0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000d906790 R08: ffffffff8fe48777 R09: 1ffffffff1fc90ee
R10: dffffc0000000000 R11: fffffbfff1fc90ef R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff8edd31c0
 __console_flush_and_unlock kernel/printk/printk.c:3258 [inline]
 console_unlock+0xbb/0x190 kernel/printk/printk.c:3298
 vprintk_emit+0x4c5/0x590 kernel/printk/printk.c:2423
 dev_vprintk_emit+0x337/0x3f0 drivers/base/core.c:4914
 dev_printk_emit+0xe0/0x130 drivers/base/core.c:4925
 __netdev_printk+0x3d7/0x4d0 net/core/dev.c:12699
 netdev_info+0x10a/0x160 net/core/dev.c:12754
 netif_change_name+0x88c/0x960 net/core/dev.c:1465
 do_setlink+0x9f6/0x41c0 net/core/rtnetlink.c:3131
 rtnl_changelink net/core/rtnetlink.c:3769 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3928 [inline]
 rtnl_newlink+0x1619/0x1c80 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x21c/0x270 net/socket.c:729
 __sys_sendto+0x3bd/0x520 net/socket.c:2231
 __do_sys_sendto net/socket.c:2238 [inline]
 __se_sys_sendto net/socket.c:2234 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2234
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f65a3590d5c
Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b
RSP: 002b:00007ffd3fea6110 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f65a43135c0 RCX: 00007f65a3590d5c
RDX: 0000000000000030 RSI: 00007f65a4313610 RDI: 0000000000000006
RBP: 0000000000000000 R08: 00007ffd3fea6164 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006
R13: 0000000000000000 R14: 00007f65a4313610 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	e8 7f 59 1f 00       	call   0x1f5984
   5:	90                   	nop
   6:	0f 0b                	ud2
   8:	90                   	nop
   9:	e9 62 fc ff ff       	jmp    0xfffffc70
   e:	e8 71 59 1f 00       	call   0x1f5984
  13:	e8 2c d5 e5 09       	call   0x9e5d544
  18:	48 85 db             	test   %rbx,%rbx
  1b:	74 c0                	je     0xffffffdd
  1d:	e8 62 59 1f 00       	call   0x1f5984
  22:	fb                   	sti
  23:	48 8b 5c 24 18       	mov    0x18(%rsp),%rbx
* 28:	48 8b 44 24 20       	mov    0x20(%rsp),%rax <-- trapping instruction
  2d:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  32:	74 08                	je     0x3c
  34:	48 89 df             	mov    %rbx,%rdi
  37:	e8 28 9a 84 00       	call   0x849a64
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b