Extracting prog: 3m13.332144405s
Minimizing prog: 45m12.840407009s
Simplifying prog options: 0s
Extracting C: 1m44.95274554s
Simplifying C: 8m3.65330455s


30 programs, timeouts [6m0s]
extracting reproducer from 30 programs
testing a last program of every proc
single: executing 5 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:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_open_dev$char_usb-write$char_usb-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x34, &(0x7f00000000c0)=ANY=[@ANYBLOB="120100002c464708c2153b003e66010203010902220001000000000904000001e3fe11000905000000000000000705936b90"], 0x0)
syz_usb_control_io$uac1(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
write$char_usb(r1, &(0x7f0000001680), 0x0)
syz_usb_connect(0x0, 0x34, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0xe4, 0x40, 0x98, 0x8, 0xc2e, 0x720, 0x9bf7, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x22, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xe6, 0x0, 0x1, 0x83, 0x4b, 0x3c, 0x0, [], [{{0x9, 0x5, 0x0, 0x0, 0x0, 0x0, 0x9, 0x0, [@generic={0x7, 0x5, "976362d424"}]}}]}}]}}]}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
single: successfully extracted reproducer
found reproducer with 8 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:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_open_dev$char_usb-write$char_usb
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x34, &(0x7f00000000c0)=ANY=[@ANYBLOB="120100002c464708c2153b003e66010203010902220001000000000904000001e3fe11000905000000000000000705936b90"], 0x0)
syz_usb_control_io$uac1(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
write$char_usb(r1, &(0x7f0000001680), 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid-syz_usb_control_io$cdc_ncm-syz_usb_control_io-syz_open_dev$char_usb
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x34, &(0x7f00000000c0)=ANY=[@ANYBLOB="120100002c464708c2153b003e66010203010902220001000000000904000001e3fe11000905000000000000000705936b90"], 0x0)
syz_usb_control_io$uac1(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_open_dev$char_usb(0xc, 0xb4, 0x0)

program crashed: INFO: rcu detected stall in worker_thread
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid-syz_usb_control_io$cdc_ncm-syz_usb_control_io
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x34, &(0x7f00000000c0)=ANY=[@ANYBLOB="120100002c464708c2153b003e66010203010902220001000000000904000001e3fe11000905000000000000000705936b90"], 0x0)
syz_usb_control_io$uac1(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid-syz_usb_control_io$cdc_ncm
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x34, &(0x7f00000000c0)=ANY=[@ANYBLOB="120100002c464708c2153b003e66010203010902220001000000000904000001e3fe11000905000000000000000705936b90"], 0x0)
syz_usb_control_io$uac1(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)

program crashed: INFO: rcu detected stall in hub_event
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x34, &(0x7f00000000c0)=ANY=[@ANYBLOB="120100002c464708c2153b003e66010203010902220001000000000904000001e3fe11000905000000000000000705936b90"], 0x0)
syz_usb_control_io$uac1(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x34, &(0x7f00000000c0)=ANY=[@ANYBLOB="120100002c464708c2153b003e66010203010902220001000000000904000001e3fe11000905000000000000000705936b90"], 0x0)
syz_usb_control_io$uac1(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:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$hid
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x34, &(0x7f00000000c0)=ANY=[@ANYBLOB="120100002c464708c2153b003e66010203010902220001000000000904000001e3fe11000905000000000000000705936b90"], 0x0)
syz_usb_control_io$hid(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:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_control_io$uac1-syz_usb_control_io$hid
detailed listing:
executing program 0:
syz_usb_control_io$uac1(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io$hid(0xffffffffffffffff, 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:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x34, 0x0, 0x0)
syz_usb_control_io$uac1(r0, 0x0, 0x0)
syz_usb_control_io$hid(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:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x34, &(0x7f00000000c0)=ANY=[@ANYBLOB], 0x0)
syz_usb_control_io$uac1(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 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:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
program crashed: INFO: rcu detected stall in corrupted
simplifying 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:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
program crashed: INFO: rcu detected stall in corrupted
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
program crashed: INFO: rcu detected stall in corrupted
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
program crashed: INFO: rcu detected stall in corrupted
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:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
program crashed: INFO: rcu detected stall in corrupted
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:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
program crashed: INFO: rcu detected stall in corrupted
reproducing took 58m14.778622294s
repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2627 jiffies s: 297 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):

report is corrupted, running repro again
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:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
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:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
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:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$uac1-syz_usb_control_io$hid
program crashed: INFO: rcu detected stall in corrupted
final repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2647 jiffies s: 261 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):