Extracting prog: 31m16.421963976s
Minimizing prog: 1h16m2.809207579s
Simplifying prog options: 0s
Extracting C: 2m3.101105847s
Simplifying C: 16m3.135575475s


extracting reproducer from 31 programs
testing a last program of every proc
single: executing 6 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$rdma_cm-sendmsg$MPTCP_PM_CMD_GET_LIMITS-openat$kvm-ioctl$KVM_CREATE_VM-openat$cgroup_ro-syz_emit_ethernet-write$binfmt_script-mmap-preadv-prlimit64-io_uring_setup-syz_kvm_setup_cpu$x86-ioctl$KVM_CREATE_VCPU-sendmsg$nl_route_sched-inotify_add_watch-syz_kvm_setup_cpu$x86-sendmsg$inet6-ioctl$KVM_RUN
detailed listing:
executing program 0:
openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000100), 0x2, 0x0)
sendmsg$MPTCP_PM_CMD_GET_LIMITS(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x41}, 0x809d)
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0)
r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000300)='blkio.bfq.io_merged_recursive\x00', 0x275a, 0x0)
syz_emit_ethernet(0x36, &(0x7f0000000100)=ANY=[@ANYBLOB="000002f0d31209000000bc2e79e995"], 0x0)
write$binfmt_script(r2, &(0x7f0000000100), 0x208e24b)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r2, 0x0)
preadv(r2, &(0x7f00000015c0)=[{&(0x7f0000000080)=""/124, 0xffffff23}], 0x3e, 0x0, 0x0)
prlimit64(0x0, 0x6, &(0x7f0000000140)={0x7, 0x4}, 0x0)
io_uring_setup(0x7, &(0x7f0000000040)={0x0, 0xc8a4, 0xc000, 0x3, 0xc1})
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000499000/0x18000)=nil, &(0x7f0000000040)=[@text16={0x10, &(0x7f0000000180)="66b9800000c00f326635000800000f300f0f1c9a65660ff3b20618baa216ec672e660f38803d004000000f285473f61366b9800000c00f320f300f20e06635800000000f22e02b6aa6c8", 0x4a}], 0x1, 0x0, 0x0, 0x0)
r3 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0)
sendmsg$nl_route_sched(r2, &(0x7f0000000180)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x10008000}, 0x40095)
inotify_add_watch(0xffffffffffffffff, &(0x7f0000000040)='./file1\x00', 0x20000de3)
syz_kvm_setup_cpu$x86(0xffffffffffffffff, r3, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000240)=[@text32={0x20, 0x0}], 0x1, 0x0, 0x0, 0x0)
sendmsg$inet6(0xffffffffffffffff, &(0x7f0000000280)={&(0x7f0000000000)={0xa, 0x4e21, 0x80000, @loopback, 0x3}, 0x1c, 0x0}, 0x4c060)
ioctl$KVM_RUN(r3, 0xae80, 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}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hiddev-ioctl$HIDIOCSUSAGE
detailed listing:
executing program 0:
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000080)=ANY=[], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f0000000180)={0x24, 0x0, 0x0, &(0x7f0000000400)=ANY=[@ANYBLOB="00220f000000b01b4550182185f57586b3"], 0x0}, 0x0)
r1 = syz_open_dev$hiddev(&(0x7f0000000540), 0x0, 0x0)
ioctl$HIDIOCSUSAGE(r1, 0x4018480c, &(0x7f0000000340)={0x3, 0x200, 0x0, 0x4, 0x4, 0x7})

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}}): syz_open_dev$dri-ioctl$DRM_IOCTL_MODE_CREATE_DUMB-syz_emit_ethernet-syz_usb_connect$midi-mmap-mmap-socket$inet_smc-io_uring_setup-io_uring_register$IORING_REGISTER_CLONE_BUFFERS-setsockopt$EBT_SO_SET_ENTRIES-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_MEMORY_ATTRIBUTES-ioctl$KVM_CREATE_VCPU-ioctl$KVM_PRE_FAULT_MEMORY-socket$inet_smc-ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB-sendmsg$nl_route-mprotect-syz_open_dev$vbi-syz_open_dev$vbi-ioctl$VIDIOC_SUBSCRIBE_EVENT-ioctl$VIDIOC_S_INPUT
detailed listing:
executing program 0:
r0 = syz_open_dev$dri(&(0x7f0000000000), 0x0, 0x0)
ioctl$DRM_IOCTL_MODE_CREATE_DUMB(r0, 0xc02064b2, &(0x7f0000000040)={0x5, 0x6576, 0x109})
syz_emit_ethernet(0x0, 0x0, 0x0)
syz_usb_connect$midi(0x5, 0x31, 0x0, 0x0)
mmap(&(0x7f0000001000/0x4000)=nil, 0x4000, 0x4, 0x11, r0, 0x100000000)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = socket$inet_smc(0x2b, 0x1, 0x0)
r2 = io_uring_setup(0x7480, &(0x7f0000000180)={0x0, 0x87f1, 0x40000, 0x3, 0x17b})
io_uring_register$IORING_REGISTER_CLONE_BUFFERS(r2, 0x1e, &(0x7f0000000200)={r0, 0x3, 0xf9a000, 0x6a, 0xfffffff8}, 0x1)
setsockopt$EBT_SO_SET_ENTRIES(r1, 0x0, 0x80, &(0x7f0000000100)=@broute={'broute\x00', 0x20, 0x0, 0x90, [0x0, 0x0, 0x0, 0x0, 0x0, 0x200000000040], 0x0, 0x0, &(0x7f0000000040)=ANY=[@ANYBLOB="000000000000000000000000000000000000000000000000000000000000003521fcea0000000000ffffffff0000000000000000000000000000000000000018000000000000000000000000000000000000000000000000fcffffff0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000fcffffff00000000"]}, 0x108)
r3 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r4 = ioctl$KVM_CREATE_VM(r3, 0xae01, 0x1)
ioctl$KVM_SET_MEMORY_ATTRIBUTES(r4, 0x4020aed2, &(0x7f0000000200)={0x10000, 0x1000000, 0x8})
r5 = ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0)
ioctl$KVM_PRE_FAULT_MEMORY(r5, 0xc040aed5, &(0x7f0000000340)={0x70000, 0x1108000})
socket$inet_smc(0x2b, 0x1, 0x0)
ioctl$DRM_IOCTL_MODE_CREATEPROPBLOB(0xffffffffffffffff, 0xc01064bd, 0x0)
sendmsg$nl_route(0xffffffffffffffff, 0x0, 0x0)
mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x3)
syz_open_dev$vbi(&(0x7f0000000040), 0x0, 0x2)
r6 = syz_open_dev$vbi(&(0x7f0000000000), 0x0, 0x2)
ioctl$VIDIOC_SUBSCRIBE_EVENT(r6, 0x4020565a, &(0x7f0000000400)={0x5, 0x2})
ioctl$VIDIOC_S_INPUT(r6, 0xc0045627, &(0x7f00000000c0)=0x2)

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}}): syz_usb_connect$cdc_ncm-syz_usb_control_io$cdc_ncm-syz_usb_control_io$cdc_ncm-syz_usb_control_io$cdc_ncm-syz_usb_control_io$cdc_ncm
detailed listing:
executing program 0:
r0 = syz_usb_connect$cdc_ncm(0x0, 0x6e, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000020000402505a1a440000102030109025c0002010000000904010001020d0000052406000105240000000d240f0100000000000000000006241a0000000905810100020000000904010000020d00000904010102020d00000905820200020064380905039693"], 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, &(0x7f0000000340)={0x44, 0x0, 0x0, 0x0, &(0x7f0000000200)={0x20, 0x80, 0x1c, {0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10}}, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$cdc_ncm(r0, 0x0, 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}}): mkdirat-mount-syz_usb_connect$cdc_ecm-openat-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
syz_usb_connect$cdc_ecm(0x0, 0x57, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/threads\x00', 0x2, 0x0)
write(r1, &(0x7f0000000140)='1\n', 0x2)

program crashed: WARNING in svc_destroy
single: successfully extracted reproducer
found reproducer with 7 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}}): mkdirat-mount-syz_usb_connect$cdc_ecm-openat-write-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
syz_usb_connect$cdc_ecm(0x0, 0x57, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./nfsd/threads\x00', 0x2, 0x0)

program crashed: WARNING in svc_destroy
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}}): mkdirat-mount-syz_usb_connect$cdc_ecm-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
syz_usb_connect$cdc_ecm(0x0, 0x57, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)

program crashed: WARNING in svc_destroy
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}}): mkdirat-mount-syz_usb_connect$cdc_ecm-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
syz_usb_connect$cdc_ecm(0x0, 0x57, 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 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}}): mkdirat-mount-syz_usb_connect$cdc_ecm-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
syz_usb_connect$cdc_ecm(0x0, 0x57, 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f00000000c0)='tcp 2', 0x5)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)

program crashed: WARNING in svc_destroy
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}}): mkdirat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)

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}}): mount-openat-write
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)

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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, 0x0, 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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0), 0x0)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
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}}): mkdirat-mount-openat-write
program crashed: WARNING in svc_destroy
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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: WARNING in svc_destroy
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}}): mkdirat-mount-openat-write
program crashed: WARNING in svc_destroy
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: WARNING in svc_destroy
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: WARNING in svc_destroy
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
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:1 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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: WARNING in svc_destroy
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: WARNING in svc_destroy
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)

program crashed: WARNING in svc_destroy
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)

program crashed: WARNING in svc_destroy
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./nfsd\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./nfsd\x00', &(0x7f0000000040)='nfsd\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./nfsd/portlist\x00', 0x2, 0x0)
write(r0, &(0x7f00000000c0)='tcp 2', 0x5)

program crashed: WARNING in svc_destroy
validation run: crashed=true
reproducing took 2h11m39.090711967s
repro crashed as (corrupted=false):
------------[ cut here ]------------
SVC: permsocks remain for nfsd
WARNING: CPU: 1 PID: 5934 at net/sunrpc/svc.c:583 svc_destroy+0x2ed/0x390 net/sunrpc/svc.c:582
Modules linked in:
CPU: 1 PID: 5934 Comm: syz.0.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:svc_destroy+0x2ed/0x390 net/sunrpc/svc.c:582
Code: 24 49 83 c7 20 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 e2 fa 32 f8 49 8b 37 48 c7 c7 60 57 d9 8b e8 13 46 a4 f7 <0f> 0b e9 78 fd ff ff e8 47 79 da f7 c6 05 85 0c ca 04 01 4c 89 e0
RSP: 0018:ffffc900032e7ae0 EFLAGS: 00010246
RAX: 059c545eb6e90000 RBX: ffff888076c6e050 RCX: ffff888027880000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc900032e7cb8 R08: ffffc900032e76e7 R09: 1ffff9200065cedc
R10: dffffc0000000000 R11: fffff5200065cedd R12: ffff888076c6e000
R13: dffffc0000000000 R14: ffff888076c6e050 R15: ffffffff8d3e1cc0
FS:  0000555564ed3500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f58fbf5da08 CR3: 000000002f405000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 kref_put include/linux/kref.h:65 [inline]
 svc_put include/linux/sunrpc/svc.h:124 [inline]
 __write_ports_addxprt fs/nfsd/nfsctl.c:765 [inline]
 __write_ports fs/nfsd/nfsctl.c:791 [inline]
 write_ports+0xb99/0xfa0 fs/nfsd/nfsctl.c:844
 nfsctl_transaction_write+0x10c/0x150 fs/nfsd/nfsctl.c:113
 vfs_write+0x299/0x9a0 fs/read_write.c:582
 ksys_write+0x151/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f58fb19e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff1a2419d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f58fb425fa0 RCX: 00007f58fb19e159
RDX: 0000000000000005 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f58fb235024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f58fb425fac R14: 00007f58fb425fa0 R15: 00007f58fb425fa0
 </TASK>

final repro crashed as (corrupted=false):
------------[ cut here ]------------
SVC: permsocks remain for nfsd
WARNING: CPU: 1 PID: 5934 at net/sunrpc/svc.c:583 svc_destroy+0x2ed/0x390 net/sunrpc/svc.c:582
Modules linked in:
CPU: 1 PID: 5934 Comm: syz.0.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:svc_destroy+0x2ed/0x390 net/sunrpc/svc.c:582
Code: 24 49 83 c7 20 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 e2 fa 32 f8 49 8b 37 48 c7 c7 60 57 d9 8b e8 13 46 a4 f7 <0f> 0b e9 78 fd ff ff e8 47 79 da f7 c6 05 85 0c ca 04 01 4c 89 e0
RSP: 0018:ffffc900032e7ae0 EFLAGS: 00010246
RAX: 059c545eb6e90000 RBX: ffff888076c6e050 RCX: ffff888027880000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc900032e7cb8 R08: ffffc900032e76e7 R09: 1ffff9200065cedc
R10: dffffc0000000000 R11: fffff5200065cedd R12: ffff888076c6e000
R13: dffffc0000000000 R14: ffff888076c6e050 R15: ffffffff8d3e1cc0
FS:  0000555564ed3500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f58fbf5da08 CR3: 000000002f405000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 kref_put include/linux/kref.h:65 [inline]
 svc_put include/linux/sunrpc/svc.h:124 [inline]
 __write_ports_addxprt fs/nfsd/nfsctl.c:765 [inline]
 __write_ports fs/nfsd/nfsctl.c:791 [inline]
 write_ports+0xb99/0xfa0 fs/nfsd/nfsctl.c:844
 nfsctl_transaction_write+0x10c/0x150 fs/nfsd/nfsctl.c:113
 vfs_write+0x299/0x9a0 fs/read_write.c:582
 ksys_write+0x151/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f58fb19e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff1a2419d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f58fb425fa0 RCX: 00007f58fb19e159
RDX: 0000000000000005 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f58fb235024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f58fb425fac R14: 00007f58fb425fa0 R15: 00007f58fb425fa0
 </TASK>