Extracting prog: 6m35.685729447s Minimizing prog: 56m8.182219794s Simplifying prog options: 0s Extracting C: 2m53.691216455s Simplifying C: 21m28.191911432s 1 programs, timeouts [30s 1m40s 6m0s] 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES detailed listing: executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a1, &(0x7f0000000240)={0x51, 0x0, 0xe}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a0, &(0x7f0000000240)={0x51}) r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r2, 0x89a2, &(0x7f0000000240)={0x51, 0x0, 0x0, 0x2000000}) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 1m40s testing program (duration=1m40s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES detailed listing: executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a1, &(0x7f0000000240)={0x51, 0x0, 0xe}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a0, &(0x7f0000000240)={0x51}) r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r2, 0x89a2, &(0x7f0000000240)={0x51, 0x0, 0x0, 0x2000000}) 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES detailed listing: executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a1, &(0x7f0000000240)={0x51, 0x0, 0xe}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a0, &(0x7f0000000240)={0x51}) r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r2, 0x89a2, &(0x7f0000000240)={0x51, 0x0, 0x0, 0x2000000}) program crashed: unregister_netdevice: waiting for DEV to become free single: successfully extracted reproducer found reproducer with 6 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25 detailed listing: executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a1, &(0x7f0000000240)={0x51, 0x0, 0xe}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a0, &(0x7f0000000240)={0x51}) syz_init_net_socket$x25(0x9, 0x5, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-ioctl$SIOCX25SFACILITIES detailed listing: executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a1, &(0x7f0000000240)={0x51, 0x0, 0xe}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a0, &(0x7f0000000240)={0x51}) ioctl$SIOCX25SFACILITIES(0xffffffffffffffff, 0x89a2, &(0x7f0000000240)={0x51, 0x0, 0x0, 0x2000000}) 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES detailed listing: executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a1, &(0x7f0000000240)={0x51, 0x0, 0xe}) syz_init_net_socket$x25(0x9, 0x5, 0x0) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a2, &(0x7f0000000240)={0x51, 0x0, 0x0, 0x2000000}) 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES detailed listing: executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a1, &(0x7f0000000240)={0x51, 0x0, 0xe}) ioctl$SIOCX25SFACILITIES(0xffffffffffffffff, 0x89a0, &(0x7f0000000240)={0x51}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a2, &(0x7f0000000240)={0x51, 0x0, 0x0, 0x2000000}) 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES detailed listing: executing program 0: syz_init_net_socket$x25(0x9, 0x5, 0x0) r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a0, &(0x7f0000000240)={0x51}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a2, &(0x7f0000000240)={0x51, 0x0, 0x0, 0x2000000}) 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES detailed listing: executing program 0: ioctl$SIOCX25SFACILITIES(0xffffffffffffffff, 0x89a1, &(0x7f0000000240)={0x51, 0x0, 0xe}) r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a0, &(0x7f0000000240)={0x51}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a2, &(0x7f0000000240)={0x51, 0x0, 0x0, 0x2000000}) 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES detailed listing: executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a1, 0x0) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a0, &(0x7f0000000240)={0x51}) r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r2, 0x89a2, &(0x7f0000000240)={0x51, 0x0, 0x0, 0x2000000}) 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES detailed listing: executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a1, &(0x7f0000000240)={0x51, 0x0, 0xe}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a0, 0x0) r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r2, 0x89a2, &(0x7f0000000240)={0x51, 0x0, 0x0, 0x2000000}) 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES detailed listing: executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89a1, &(0x7f0000000240)={0x51, 0x0, 0xe}) r1 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r1, 0x89a0, &(0x7f0000000240)={0x51}) r2 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r2, 0x89a2, 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES program crashed: unregister_netdevice: waiting for DEV to become free simplifying 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES program crashed: unregister_netdevice: waiting for DEV to become free 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES program crashed: unregister_netdevice: waiting for DEV to become free testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES program crashed: unregister_netdevice: waiting for DEV to become free testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES program crashed: unregister_netdevice: waiting for DEV to become free testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES program crashed: unregister_netdevice: waiting for DEV to become free testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES-syz_init_net_socket$x25-ioctl$SIOCX25SFACILITIES program crashed: unregister_netdevice: waiting for DEV to become free reproducing took 1h27m5.751097894s repro crashed as (corrupted=false): unregister_netdevice: waiting for Q to become free. Usage count = 2 ref_tracker: Q@ffff88802b24c620 has 1/1 users at __netdev_tracker_alloc include/linux/netdevice.h:4047 [inline] netdev_hold include/linux/netdevice.h:4076 [inline] dev_ifsioc+0x91c/0x10b0 net/core/dev_ioctl.c:587 dev_ioctl+0x224/0x10c0 net/core/dev_ioctl.c:784 sock_do_ioctl+0x19e/0x280 net/socket.c:1236 sock_ioctl+0x22e/0x6c0 net/socket.c:1341 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x193/0x220 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f final repro crashed as (corrupted=false): unregister_netdevice: waiting for Q to become free. Usage count = 2 ref_tracker: Q@ffff88802b24c620 has 1/1 users at __netdev_tracker_alloc include/linux/netdevice.h:4047 [inline] netdev_hold include/linux/netdevice.h:4076 [inline] dev_ifsioc+0x91c/0x10b0 net/core/dev_ioctl.c:587 dev_ioctl+0x224/0x10c0 net/core/dev_ioctl.c:784 sock_do_ioctl+0x19e/0x280 net/socket.c:1236 sock_ioctl+0x22e/0x6c0 net/socket.c:1341 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x193/0x220 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f