Extracting prog: 4m25.939488589s
Minimizing prog: 30m45.466248796s
Simplifying prog options: 14m38.059732827s
Extracting C: 6m13.800515485s
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$nl_xfrm-sendmsg$nl_xfrm
detailed listing:
executing program 0:
r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=@newsa={0x138, 0x10, 0x1, 0xfffffffe, 0x100, {{@in6=@remote, @in6=@private1={0xfc, 0x1, '\x00', 0x1}, 0x1, 0x714, 0x4e23, 0x5, 0x0, 0x0, 0x0, 0x3a}, {@in6=@mcast2, 0x4d4, 0x6c}, @in=@loopback, {0x0, 0x192, 0x6, 0xffff, 0x8251c, 0x2, 0xfffffffffffffff8}, {0xffffffffffffffff, 0x0, 0x1f, 0xfffffffffffffffe}, {0x2, 0xfffffffc, 0x7}, 0x70bd2a, 0x3504, 0xa, 0x1, 0x0, 0x20}, [@algo_comp={0x48, 0x3, {{'deflate\x00'}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x8801}, 0x0)

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: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$nl_xfrm-sendmsg$nl_xfrm
detailed listing:
executing program 0:
r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=@newsa={0x138, 0x10, 0x1, 0xfffffffe, 0x100, {{@in6=@remote, @in6=@private1={0xfc, 0x1, '\x00', 0x1}, 0x1, 0x714, 0x4e23, 0x5, 0x0, 0x0, 0x0, 0x3a}, {@in6=@mcast2, 0x4d4, 0x6c}, @in=@loopback, {0x0, 0x192, 0x6, 0xffff, 0x8251c, 0x2, 0xfffffffffffffff8}, {0xffffffffffffffff, 0x0, 0x1f, 0xfffffffffffffffe}, {0x2, 0xfffffffc, 0x7}, 0x70bd2a, 0x3504, 0xa, 0x1, 0x0, 0x20}, [@algo_comp={0x48, 0x3, {{'deflate\x00'}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x8801}, 0x0)

program crashed: WARNING in xfrm6_tunnel_net_exit
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=6m0s, {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$nl_xfrm
detailed listing:
executing program 0:
socket$nl_xfrm(0x10, 0x3, 0x6)

program did not crash
testing program (duration=6m0s, {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}}): sendmsg$nl_xfrm
detailed listing:
executing program 0:
sendmsg$nl_xfrm(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=@newsa={0x138, 0x10, 0x1, 0xfffffffe, 0x100, {{@in6=@remote, @in6=@private1={0xfc, 0x1, '\x00', 0x1}, 0x1, 0x714, 0x4e23, 0x5, 0x0, 0x0, 0x0, 0x3a}, {@in6=@mcast2, 0x4d4, 0x6c}, @in=@loopback, {0x0, 0x192, 0x6, 0xffff, 0x8251c, 0x2, 0xfffffffffffffff8}, {0xffffffffffffffff, 0x0, 0x1f, 0xfffffffffffffffe}, {0x2, 0xfffffffc, 0x7}, 0x70bd2a, 0x3504, 0xa, 0x1, 0x0, 0x20}, [@algo_comp={0x48, 0x3, {{'deflate\x00'}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x8801}, 0x0)

program did not crash
testing program (duration=6m0s, {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$nl_xfrm-sendmsg$nl_xfrm
detailed listing:
executing program 0:
r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {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$nl_xfrm-sendmsg$nl_xfrm
detailed listing:
executing program 0:
r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x8801}, 0x0)

program did not crash
testing program (duration=6m0s, {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$nl_xfrm-sendmsg$nl_xfrm
detailed listing:
executing program 0:
r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={0x0}, 0x1, 0x0, 0x0, 0x8801}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {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$nl_xfrm-sendmsg$nl_xfrm
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: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$nl_xfrm-sendmsg$nl_xfrm
detailed listing:
executing program 0:
r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=@newsa={0x138, 0x10, 0x1, 0xfffffffe, 0x100, {{@in6=@remote, @in6=@private1={0xfc, 0x1, '\x00', 0x1}, 0x1, 0x714, 0x4e23, 0x5, 0x0, 0x0, 0x0, 0x3a}, {@in6=@mcast2, 0x4d4, 0x6c}, @in=@loopback, {0x0, 0x192, 0x6, 0xffff, 0x8251c, 0x2, 0xfffffffffffffff8}, {0xffffffffffffffff, 0x0, 0x1f, 0xfffffffffffffffe}, {0x2, 0xfffffffc, 0x7}, 0x70bd2a, 0x3504, 0xa, 0x1, 0x0, 0x20}, [@algo_comp={0x48, 0x3, {{'deflate\x00'}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x8801}, 0x0)

program crashed: WARNING in xfrm6_tunnel_net_exit
extracting C reproducer
testing compiled C program (duration=6m0s, {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}}): socket$nl_xfrm-sendmsg$nl_xfrm
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}}): socket$nl_xfrm-sendmsg$nl_xfrm
detailed listing:
executing program 0:
r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=@newsa={0x138, 0x10, 0x1, 0xfffffffe, 0x100, {{@in6=@remote, @in6=@private1={0xfc, 0x1, '\x00', 0x1}, 0x1, 0x714, 0x4e23, 0x5, 0x0, 0x0, 0x0, 0x3a}, {@in6=@mcast2, 0x4d4, 0x6c}, @in=@loopback, {0x0, 0x192, 0x6, 0xffff, 0x8251c, 0x2, 0xfffffffffffffff8}, {0xffffffffffffffff, 0x0, 0x1f, 0xfffffffffffffffe}, {0x2, 0xfffffffc, 0x7}, 0x70bd2a, 0x3504, 0xa, 0x1, 0x0, 0x20}, [@algo_comp={0x48, 0x3, {{'deflate\x00'}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x8801}, 0x0)

program crashed: WARNING in xfrm6_tunnel_net_exit
extracting C reproducer
testing compiled C 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}}): socket$nl_xfrm-sendmsg$nl_xfrm
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}}): socket$nl_xfrm-sendmsg$nl_xfrm
detailed listing:
executing program 0:
r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=@newsa={0x138, 0x10, 0x1, 0xfffffffe, 0x100, {{@in6=@remote, @in6=@private1={0xfc, 0x1, '\x00', 0x1}, 0x1, 0x714, 0x4e23, 0x5, 0x0, 0x0, 0x0, 0x3a}, {@in6=@mcast2, 0x4d4, 0x6c}, @in=@loopback, {0x0, 0x192, 0x6, 0xffff, 0x8251c, 0x2, 0xfffffffffffffff8}, {0xffffffffffffffff, 0x0, 0x1f, 0xfffffffffffffffe}, {0x2, 0xfffffffc, 0x7}, 0x70bd2a, 0x3504, 0xa, 0x1, 0x0, 0x20}, [@algo_comp={0x48, 0x3, {{'deflate\x00'}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x8801}, 0x0)

program crashed: WARNING in xfrm6_tunnel_net_exit
validation run: crashed=true
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}}): socket$nl_xfrm-sendmsg$nl_xfrm
detailed listing:
executing program 0:
r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=@newsa={0x138, 0x10, 0x1, 0xfffffffe, 0x100, {{@in6=@remote, @in6=@private1={0xfc, 0x1, '\x00', 0x1}, 0x1, 0x714, 0x4e23, 0x5, 0x0, 0x0, 0x0, 0x3a}, {@in6=@mcast2, 0x4d4, 0x6c}, @in=@loopback, {0x0, 0x192, 0x6, 0xffff, 0x8251c, 0x2, 0xfffffffffffffff8}, {0xffffffffffffffff, 0x0, 0x1f, 0xfffffffffffffffe}, {0x2, 0xfffffffc, 0x7}, 0x70bd2a, 0x3504, 0xa, 0x1, 0x0, 0x20}, [@algo_comp={0x48, 0x3, {{'deflate\x00'}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x8801}, 0x0)

program crashed: WARNING in xfrm6_tunnel_net_exit
validation run: crashed=true
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}}): socket$nl_xfrm-sendmsg$nl_xfrm
detailed listing:
executing program 0:
r0 = socket$nl_xfrm(0x10, 0x3, 0x6)
sendmsg$nl_xfrm(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000500)=@newsa={0x138, 0x10, 0x1, 0xfffffffe, 0x100, {{@in6=@remote, @in6=@private1={0xfc, 0x1, '\x00', 0x1}, 0x1, 0x714, 0x4e23, 0x5, 0x0, 0x0, 0x0, 0x3a}, {@in6=@mcast2, 0x4d4, 0x6c}, @in=@loopback, {0x0, 0x192, 0x6, 0xffff, 0x8251c, 0x2, 0xfffffffffffffff8}, {0xffffffffffffffff, 0x0, 0x1f, 0xfffffffffffffffe}, {0x2, 0xfffffffc, 0x7}, 0x70bd2a, 0x3504, 0xa, 0x1, 0x0, 0x20}, [@algo_comp={0x48, 0x3, {{'deflate\x00'}}}]}, 0x138}, 0x1, 0x0, 0x0, 0x8801}, 0x0)

program crashed: WARNING in xfrm6_tunnel_net_exit
validation run: crashed=true
reproducing took 59m34.824552647s
repro crashed as (corrupted=false):
veth0_vlan: left promiscuous mode
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed
------------[ cut here ]------------
WARNING: CPU: 0 PID: 33 at net/ipv6/xfrm6_tunnel.c:341 xfrm6_tunnel_net_exit+0x7e/0x100 net/ipv6/xfrm6_tunnel.c:341
Modules linked in:
CPU: 0 UID: 0 PID: 33 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: netns cleanup_net
RIP: 0010:xfrm6_tunnel_net_exit+0x7e/0x100 net/ipv6/xfrm6_tunnel.c:341
Code: e8 b8 17 f8 4b 83 3c 2c 00 75 19 e8 ac a5 b1 f7 49 81 fd f8 07 00 00 74 1d e8 9e a5 b1 f7 49 83 c5 08 eb c9 e8 93 a5 b1 f7 90 <0f> 0b 90 49 81 fd f8 07 00 00 75 e3 48 81 c3 00 08 00 00 45 31 f6
RSP: 0018:ffffc90000a97890 EFLAGS: 00010293
RAX: ffffffff8a0e612d RBX: ffff8880282c0000 RCX: ffff88801da9dac0
RDX: 0000000000000000 RSI: ffffffff8d8f5dca RDI: ffff8880282c03f0
RBP: ffffc90000a97990 R08: ffffffff8f7cee77 R09: 1ffffffff1ef9dce
R10: dffffc0000000000 R11: fffffbfff1ef9dcf R12: ffff8880282c0000
R13: 00000000000003f0 R14: ffff8880799d8000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888126138000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ae7c5bd950 CR3: 0000000077c68000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ops_exit_list net/core/net_namespace.c:199 [inline]
 ops_undo_list+0x49a/0x990 net/core/net_namespace.c:252
 cleanup_net+0x4d8/0x820 net/core/net_namespace.c:695
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

final repro crashed as (corrupted=false):
veth0_vlan: left promiscuous mode
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed
------------[ cut here ]------------
WARNING: CPU: 0 PID: 33 at net/ipv6/xfrm6_tunnel.c:341 xfrm6_tunnel_net_exit+0x7e/0x100 net/ipv6/xfrm6_tunnel.c:341
Modules linked in:
CPU: 0 UID: 0 PID: 33 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: netns cleanup_net
RIP: 0010:xfrm6_tunnel_net_exit+0x7e/0x100 net/ipv6/xfrm6_tunnel.c:341
Code: e8 b8 17 f8 4b 83 3c 2c 00 75 19 e8 ac a5 b1 f7 49 81 fd f8 07 00 00 74 1d e8 9e a5 b1 f7 49 83 c5 08 eb c9 e8 93 a5 b1 f7 90 <0f> 0b 90 49 81 fd f8 07 00 00 75 e3 48 81 c3 00 08 00 00 45 31 f6
RSP: 0018:ffffc90000a97890 EFLAGS: 00010293
RAX: ffffffff8a0e612d RBX: ffff8880282c0000 RCX: ffff88801da9dac0
RDX: 0000000000000000 RSI: ffffffff8d8f5dca RDI: ffff8880282c03f0
RBP: ffffc90000a97990 R08: ffffffff8f7cee77 R09: 1ffffffff1ef9dce
R10: dffffc0000000000 R11: fffffbfff1ef9dcf R12: ffff8880282c0000
R13: 00000000000003f0 R14: ffff8880799d8000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888126138000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ae7c5bd950 CR3: 0000000077c68000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ops_exit_list net/core/net_namespace.c:199 [inline]
 ops_undo_list+0x49a/0x990 net/core/net_namespace.c:252
 cleanup_net+0x4d8/0x820 net/core/net_namespace.c:695
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>