Extracting prog: 7m28.226032369s
Minimizing prog: 51m32.928735493s
Simplifying prog options: 11m27.31863747s
Extracting C: 4m41.597556672s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program crashed: no output from test machine
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
socket(0xa, 0x3, 0x4)

program did not crash
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
ioctl$sock_SIOCBRDELBR(0xffffffffffffffff, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program did not crash
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
socket$inet6_mptcp(0xa, 0x1, 0x106)
r0 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r0, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program did not crash
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r0 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r0, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program did not crash
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0)
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program did not crash
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
program crashed: INFO: task hung in corrupted
a never seen crash title: INFO: task hung in corrupted, ignore
simplifying guilty program options
testing program (duration=8m8.048713057s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program crashed: INFO: task hung in corrupted
a never seen crash title: INFO: task hung in corrupted, ignore
testing program (duration=8m8.048713057s, {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$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program did not crash
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program crashed: INFO: task hung in corrupted
validation run: crashed=true
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program crashed: INFO: task hung in corrupted
validation run: crashed=true
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program crashed: INFO: task hung in corrupted
validation run: crashed=true
reproducing took 1h28m54.780813003s
repro crashed as (corrupted=true):
INFO: task syz-executor:5945 blocked for more than 146 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:23720 pid:5945  tgid:5945  ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5295 [inline]
 __schedule+0xfee/0x60e0 kernel/sched/core.c:6907

report is corrupted, running repro again
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program crashed: INFO: task hung in corrupted
report is corrupted, running repro again
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program crashed: INFO: task hung in corrupted
report is corrupted, running repro again
testing program (duration=8m8.048713057s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_mptcp-ioctl$sock_SIOCGIFINDEX-socket-ioctl$sock_SIOCBRDELBR
detailed listing:
executing program 0:
r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'veth1_to_bridge\x00'})
r1 = socket(0xa, 0x3, 0x4)
ioctl$sock_SIOCBRDELBR(r1, 0x89a2, &(0x7f0000000000)='bridge0\x00')

program crashed: INFO: task hung in corrupted
final repro crashed as (corrupted=true):
INFO: task syz-executor:5934 blocked for more than 150 seconds.
      Not tainted syzkaller #0