Extracting prog: 9m19.575525809s
Minimizing prog: 1h1m34.846171559s
Simplifying prog options: 12m22.949290153s
Extracting C: 5m12.945474605s
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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140)={'batadv0\x00', <r2=>0x0})
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r1, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r2}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140)={'batadv0\x00', <r2=>0x0})
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r1, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r2}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 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: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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140)={'batadv0\x00', <r2=>0x0})
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r1, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r2}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=6m1.834557342s, {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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140))

program did not crash
testing program (duration=6m1.834557342s, {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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r1, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program did not crash
testing program (duration=6m1.834557342s, {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}}): socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140)={'batadv0\x00', <r1=>0x0})
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, 0x0, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r1}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program did not crash
testing program (duration=6m1.834557342s, {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}}): syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(0xffffffffffffffff, 0x8933, &(0x7f0000000140)={'batadv0\x00', <r1=>0x0})
sendmsg$BATADV_CMD_GET_NEIGHBORS(0xffffffffffffffff, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r0, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r1}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program did not crash
testing program (duration=6m1.834557342s, {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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(0x0, 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140)={'batadv0\x00', <r2=>0x0})
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r1, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r2}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program did not crash
testing program (duration=6m1.834557342s, {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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, 0x0)
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r1, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program did not crash
testing program (duration=6m1.834557342s, {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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140))
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, 0x0, 0x0)

program did not crash
testing program (duration=6m1.834557342s, {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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140))
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program did not crash
testing program (duration=6m1.834557342s, {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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140))
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={0x0}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program did not crash
testing program (duration=6m1.834557342s, {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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140))
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x14, r1, 0x331, 0x0, 0x0, {0x8}}, 0x14}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m1.834557342s, {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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
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=6m1.834557342s, {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}}): socket$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140)={'batadv0\x00', <r2=>0x0})
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r1, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r2}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=6m1.834557342s, {Threaded:true 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$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140)={'batadv0\x00', <r2=>0x0})
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r1, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r2}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
extracting C reproducer
testing compiled C program (duration=6m1.834557342s, {Threaded:true 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$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m1.834557342s, {Threaded:true 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$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140)={'batadv0\x00', <r2=>0x0})
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r1, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r2}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
validation run: crashed=true
testing program (duration=6m1.834557342s, {Threaded:true 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$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140)={'batadv0\x00', <r2=>0x0})
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r1, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r2}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
validation run: crashed=true
testing program (duration=6m1.834557342s, {Threaded:true 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$nl_generic-syz_genetlink_get_family_id$batadv-ioctl$ifreq_SIOCGIFINDEX_batadv_mesh-sendmsg$BATADV_CMD_GET_NEIGHBORS
detailed listing:
executing program 0:
r0 = socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_genetlink_get_family_id$batadv(&(0x7f0000000080), 0xffffffffffffffff)
ioctl$ifreq_SIOCGIFINDEX_batadv_mesh(r0, 0x8933, &(0x7f0000000140)={'batadv0\x00', <r2=>0x0})
sendmsg$BATADV_CMD_GET_NEIGHBORS(r0, &(0x7f0000004340)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000400)={0x34, r1, 0x331, 0x0, 0x0, {0x8}, [@BATADV_ATTR_MESH_IFINDEX={0x8, 0x3, r2}, @BATADV_ATTR_ISOLATION_MASK={0x8, 0x2c, 0xd}, @BATADV_ATTR_HARD_IFINDEX={0x8}, @BATADV_ATTR_GW_BANDWIDTH_DOWN={0x8, 0x31, 0x8}]}, 0x34}, 0x1, 0x0, 0x0, 0x4004844}, 0x0)

program crashed: unregister_netdevice: waiting for DEV to become free
validation run: crashed=true
reproducing took 1h40m52.379968878s
repro crashed as (corrupted=false):
unregister_netdevice: waiting for batadv_slave_0 to become free. Usage count = 2
ref_tracker: netdev@ffff888027bfc610 has 1/1 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4349 [inline]
     netdev_hold include/linux/netdevice.h:4378 [inline]
     batadv_hardif_add_interface net/batman-adv/hard-interface.c:877 [inline]
     batadv_hard_if_event+0xf0f/0x1730 net/batman-adv/hard-interface.c:957
     notifier_call_chain+0x1b3/0x3e0 kernel/notifier.c:85
     call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
     call_netdevice_notifiers net/core/dev.c:2281 [inline]
     register_netdevice+0x1608/0x1ae0 net/core/dev.c:11293
     veth_newlink+0x5cc/0xa50 drivers/net/veth.c:1884
     rtnl_newlink_create+0x30d/0xb00 net/core/rtnetlink.c:3825
     __rtnl_newlink net/core/rtnetlink.c:3942 [inline]
     rtnl_newlink+0x16d6/0x1c70 net/core/rtnetlink.c:4057
     rtnetlink_rcv_msg+0x7cc/0xb70 net/core/rtnetlink.c:6946
     netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2552
     netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
     netlink_unicast+0x82c/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:2228
     __do_sys_sendto net/socket.c:2235 [inline]
     __se_sys_sendto net/socket.c:2231 [inline]
     __x64_sys_sendto+0xde/0x100 net/socket.c:2231
     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


final repro crashed as (corrupted=false):
unregister_netdevice: waiting for batadv_slave_0 to become free. Usage count = 2
ref_tracker: netdev@ffff888027bfc610 has 1/1 users at
     __netdev_tracker_alloc include/linux/netdevice.h:4349 [inline]
     netdev_hold include/linux/netdevice.h:4378 [inline]
     batadv_hardif_add_interface net/batman-adv/hard-interface.c:877 [inline]
     batadv_hard_if_event+0xf0f/0x1730 net/batman-adv/hard-interface.c:957
     notifier_call_chain+0x1b3/0x3e0 kernel/notifier.c:85
     call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
     call_netdevice_notifiers net/core/dev.c:2281 [inline]
     register_netdevice+0x1608/0x1ae0 net/core/dev.c:11293
     veth_newlink+0x5cc/0xa50 drivers/net/veth.c:1884
     rtnl_newlink_create+0x30d/0xb00 net/core/rtnetlink.c:3825
     __rtnl_newlink net/core/rtnetlink.c:3942 [inline]
     rtnl_newlink+0x16d6/0x1c70 net/core/rtnetlink.c:4057
     rtnetlink_rcv_msg+0x7cc/0xb70 net/core/rtnetlink.c:6946
     netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2552
     netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
     netlink_unicast+0x82c/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:2228
     __do_sys_sendto net/socket.c:2235 [inline]
     __se_sys_sendto net/socket.c:2231 [inline]
     __x64_sys_sendto+0xde/0x100 net/socket.c:2231
     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