Extracting prog: 1m30.107631028s
Minimizing prog: 11m36.992385868s
Simplifying prog options: 2m47.786841054s
Extracting C: 1m3.657724149s
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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program crashed: possible deadlock in smc_release
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(0xffffffffffffffff, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {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$inet6_tcp-close-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {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$inet6_tcp-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {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}}): close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
close(0xffffffffffffffff)
socket(0x2b, 0x1, 0x1)
bind$inet6(0xffffffffffffffff, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(0xffffffffffffffff, 0x0)
r0 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r0, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, 0x0, 0x0)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
program did not crash
simplifying guilty program options
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false 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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program did not crash
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program crashed: possible deadlock in smc_release
validation run: crashed=true
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program crashed: possible deadlock in smc_release
validation run: crashed=true
testing program (duration=58.242536457s, {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$inet6_tcp-close-socket-bind$inet6-listen-socket$inet_mptcp-pselect6-connect$inet
detailed listing:
executing program 0:
r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
close(r0)
socket(0x2b, 0x1, 0x1)
bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x0, @empty}, 0x1c)
listen(r0, 0x0)
r1 = socket$inet_mptcp(0x2, 0x1, 0x106)
pselect6(0x40, &(0x7f0000000140)={0x9, 0x100000001, 0xf, 0xb, 0x9, 0x81, 0x60a82359}, 0x0, 0x0, 0x0, 0x0)
connect$inet(r1, &(0x7f0000000000)={0x2, 0x4e22, @local}, 0x10)

program crashed: possible deadlock in smc_release
validation run: crashed=true
reproducing took 19m29.884105047s
repro crashed as (corrupted=false):
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
syz.1.1941/11925 is trying to acquire lock:
ffff8880350d7888 ((work_completion)(&new_smc->smc_listen_work)){+.+.}-{0:0}, at: touch_work_lockdep_map kernel/workqueue.c:3951 [inline]
ffff8880350d7888 ((work_completion)(&new_smc->smc_listen_work)){+.+.}-{0:0}, at: start_flush_work kernel/workqueue.c:4205 [inline]
ffff8880350d7888 ((work_completion)(&new_smc->smc_listen_work)){+.+.}-{0:0}, at: __flush_work+0x4d0/0xcc0 kernel/workqueue.c:4237

but task is already holding lock:
ffff888024cfbfa0 (sk_lock-AF_SMC/1){+.+.}-{0:0}, at: smc_release+0x3a5/0x620 net/smc/af_smc.c:339

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (sk_lock-AF_SMC/1){+.+.}-{0:0}:
       lock_sock_nested+0x41/0xf0 net/core/sock.c:3720
       smc_listen_out+0x202/0x4a0 net/smc/af_smc.c:1924
       smc_listen_out_connected net/smc/af_smc.c:1944 [inline]
       smc_listen_work+0x5a3/0x50b0 net/smc/af_smc.c:2466
       process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
       process_scheduled_works kernel/workqueue.c:3346 [inline]
       worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
       kthread+0x3c5/0x780 kernel/kthread.c:463
       ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

-> #0 ((work_completion)(&new_smc->smc_listen_work)){+.+.}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3165 [inline]
       check_prevs_add kernel/locking/lockdep.c:3284 [inline]
       validate_chain kernel/locking/lockdep.c:3908 [inline]
       __lock_acquire+0x126f/0x1c90 kernel/locking/lockdep.c:5237
       lock_acquire kernel/locking/lockdep.c:5868 [inline]
       lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825
       touch_work_lockdep_map kernel/workqueue.c:3951 [inline]
       start_flush_work kernel/workqueue.c:4205 [inline]
       __flush_work+0x4e4/0xcc0 kernel/workqueue.c:4237
       __cancel_work_sync+0x10c/0x130 kernel/workqueue.c:4393
       smc_clcsock_release+0x5f/0xe0 net/smc/smc_close.c:29
       __smc_release+0x5c2/0x880 net/smc/af_smc.c:304
       smc_close_non_accepted+0xda/0x200 net/smc/af_smc.c:1855
       smc_close_cleanup_listen net/smc/smc_close.c:45 [inline]
       smc_close_active+0xc3c/0x1070 net/smc/smc_close.c:225
       __smc_release+0x634/0x880 net/smc/af_smc.c:280
       smc_release+0x1fc/0x620 net/smc/af_smc.c:347
       __sock_release+0xb3/0x270 net/socket.c:662
       sock_close+0x1c/0x30 net/socket.c:1455
       __fput+0x402/0xb70 fs/file_table.c:468
       task_work_run+0x150/0x240 kernel/task_work.c:227
       resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
       exit_to_user_mode_loop+0xec/0x130 kernel/entry/common.c:43
       exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
       syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
       syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
       do_syscall_64+0x426/0xfa0 arch/x86/entry/syscall_64.c:100
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(sk_lock-AF_SMC/1);
                               lock((work_completion)(&new_smc->smc_listen_work));
                               lock(sk_lock-AF_SMC/1);
  lock((work_completion)(&new_smc->smc_listen_work));

 *** DEADLOCK ***

3 locks held by syz.1.1941/11925:
 #0: ffff88803d70b5c8 (&sb->s_type->i_mutex_key#11){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:980 [inline]
 #0: ffff88803d70b5c8 (&sb->s_type->i_mutex_key#11){+.+.}-{4:4}, at: __sock_release+0x86/0x270 net/socket.c:661
 #1: ffff888024cfbfa0 (sk_lock-AF_SMC/1){+.+.}-{0:0}, at: smc_release+0x3a5/0x620 net/smc/af_smc.c:339
 #2: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #2: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
 #2: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: start_flush_work kernel/workqueue.c:4179 [inline]
 #2: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: __flush_work+0xfb/0xcc0 kernel/workqueue.c:4237

stack backtrace:
CPU: 3 UID: 0 PID: 11925 Comm: syz.1.1941 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_circular_bug+0x275/0x350 kernel/locking/lockdep.c:2043
 check_noncircular+0x14c/0x170 kernel/locking/lockdep.c:2175
 check_prev_add kernel/locking/lockdep.c:3165 [inline]
 check_prevs_add kernel/locking/lockdep.c:3284 [inline]
 validate_chain kernel/locking/lockdep.c:3908 [inline]
 __lock_acquire+0x126f/0x1c90 kernel/locking/lockdep.c:5237
 lock_acquire kernel/locking/lockdep.c:5868 [inline]
 lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825
 touch_work_lockdep_map kernel/workqueue.c:3951 [inline]
 start_flush_work kernel/workqueue.c:4205 [inline]
 __flush_work+0x4e4/0xcc0 kernel/workqueue.c:4237
 __cancel_work_sync+0x10c/0x130 kernel/workqueue.c:4393
 smc_clcsock_release+0x5f/0xe0 net/smc/smc_close.c:29
 __smc_release+0x5c2/0x880 net/smc/af_smc.c:304
 smc_close_non_accepted+0xda/0x200 net/smc/af_smc.c:1855
 smc_close_cleanup_listen net/smc/smc_close.c:45 [inline]
 smc_close_active+0xc3c/0x1070 net/smc/smc_close.c:225
 __smc_release+0x634/0x880 net/smc/af_smc.c:280
 smc_release+0x1fc/0x620 net/smc/af_smc.c:347
 __sock_release+0xb3/0x270 net/socket.c:662
 sock_close+0x1c/0x30 net/socket.c:1455
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x150/0x240 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x130 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x426/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8902f8efc9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffde01e32f8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00000000000179cb RCX: 00007f8902f8efc9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f89031e7da0 R08: 0000000000000001 R09: 00000008e01e35ef
R10: 0000001b2db20000 R11: 0000000000000246 R12: 00007f89031e609c
R13: 00007f89031e6090 R14: ffffffffffffffff R15: 00007ffde01e3410
 </TASK>

final repro crashed as (corrupted=false):
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
syz.1.1941/11925 is trying to acquire lock:
ffff8880350d7888 ((work_completion)(&new_smc->smc_listen_work)){+.+.}-{0:0}, at: touch_work_lockdep_map kernel/workqueue.c:3951 [inline]
ffff8880350d7888 ((work_completion)(&new_smc->smc_listen_work)){+.+.}-{0:0}, at: start_flush_work kernel/workqueue.c:4205 [inline]
ffff8880350d7888 ((work_completion)(&new_smc->smc_listen_work)){+.+.}-{0:0}, at: __flush_work+0x4d0/0xcc0 kernel/workqueue.c:4237

but task is already holding lock:
ffff888024cfbfa0 (sk_lock-AF_SMC/1){+.+.}-{0:0}, at: smc_release+0x3a5/0x620 net/smc/af_smc.c:339

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (sk_lock-AF_SMC/1){+.+.}-{0:0}:
       lock_sock_nested+0x41/0xf0 net/core/sock.c:3720
       smc_listen_out+0x202/0x4a0 net/smc/af_smc.c:1924
       smc_listen_out_connected net/smc/af_smc.c:1944 [inline]
       smc_listen_work+0x5a3/0x50b0 net/smc/af_smc.c:2466
       process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
       process_scheduled_works kernel/workqueue.c:3346 [inline]
       worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
       kthread+0x3c5/0x780 kernel/kthread.c:463
       ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

-> #0 ((work_completion)(&new_smc->smc_listen_work)){+.+.}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3165 [inline]
       check_prevs_add kernel/locking/lockdep.c:3284 [inline]
       validate_chain kernel/locking/lockdep.c:3908 [inline]
       __lock_acquire+0x126f/0x1c90 kernel/locking/lockdep.c:5237
       lock_acquire kernel/locking/lockdep.c:5868 [inline]
       lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825
       touch_work_lockdep_map kernel/workqueue.c:3951 [inline]
       start_flush_work kernel/workqueue.c:4205 [inline]
       __flush_work+0x4e4/0xcc0 kernel/workqueue.c:4237
       __cancel_work_sync+0x10c/0x130 kernel/workqueue.c:4393
       smc_clcsock_release+0x5f/0xe0 net/smc/smc_close.c:29
       __smc_release+0x5c2/0x880 net/smc/af_smc.c:304
       smc_close_non_accepted+0xda/0x200 net/smc/af_smc.c:1855
       smc_close_cleanup_listen net/smc/smc_close.c:45 [inline]
       smc_close_active+0xc3c/0x1070 net/smc/smc_close.c:225
       __smc_release+0x634/0x880 net/smc/af_smc.c:280
       smc_release+0x1fc/0x620 net/smc/af_smc.c:347
       __sock_release+0xb3/0x270 net/socket.c:662
       sock_close+0x1c/0x30 net/socket.c:1455
       __fput+0x402/0xb70 fs/file_table.c:468
       task_work_run+0x150/0x240 kernel/task_work.c:227
       resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
       exit_to_user_mode_loop+0xec/0x130 kernel/entry/common.c:43
       exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
       syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
       syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
       do_syscall_64+0x426/0xfa0 arch/x86/entry/syscall_64.c:100
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(sk_lock-AF_SMC/1);
                               lock((work_completion)(&new_smc->smc_listen_work));
                               lock(sk_lock-AF_SMC/1);
  lock((work_completion)(&new_smc->smc_listen_work));

 *** DEADLOCK ***

3 locks held by syz.1.1941/11925:
 #0: ffff88803d70b5c8 (&sb->s_type->i_mutex_key#11){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:980 [inline]
 #0: ffff88803d70b5c8 (&sb->s_type->i_mutex_key#11){+.+.}-{4:4}, at: __sock_release+0x86/0x270 net/socket.c:661
 #1: ffff888024cfbfa0 (sk_lock-AF_SMC/1){+.+.}-{0:0}, at: smc_release+0x3a5/0x620 net/smc/af_smc.c:339
 #2: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
 #2: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
 #2: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: start_flush_work kernel/workqueue.c:4179 [inline]
 #2: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: __flush_work+0xfb/0xcc0 kernel/workqueue.c:4237

stack backtrace:
CPU: 3 UID: 0 PID: 11925 Comm: syz.1.1941 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_circular_bug+0x275/0x350 kernel/locking/lockdep.c:2043
 check_noncircular+0x14c/0x170 kernel/locking/lockdep.c:2175
 check_prev_add kernel/locking/lockdep.c:3165 [inline]
 check_prevs_add kernel/locking/lockdep.c:3284 [inline]
 validate_chain kernel/locking/lockdep.c:3908 [inline]
 __lock_acquire+0x126f/0x1c90 kernel/locking/lockdep.c:5237
 lock_acquire kernel/locking/lockdep.c:5868 [inline]
 lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825
 touch_work_lockdep_map kernel/workqueue.c:3951 [inline]
 start_flush_work kernel/workqueue.c:4205 [inline]
 __flush_work+0x4e4/0xcc0 kernel/workqueue.c:4237
 __cancel_work_sync+0x10c/0x130 kernel/workqueue.c:4393
 smc_clcsock_release+0x5f/0xe0 net/smc/smc_close.c:29
 __smc_release+0x5c2/0x880 net/smc/af_smc.c:304
 smc_close_non_accepted+0xda/0x200 net/smc/af_smc.c:1855
 smc_close_cleanup_listen net/smc/smc_close.c:45 [inline]
 smc_close_active+0xc3c/0x1070 net/smc/smc_close.c:225
 __smc_release+0x634/0x880 net/smc/af_smc.c:280
 smc_release+0x1fc/0x620 net/smc/af_smc.c:347
 __sock_release+0xb3/0x270 net/socket.c:662
 sock_close+0x1c/0x30 net/socket.c:1455
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x150/0x240 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x130 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x426/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8902f8efc9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffde01e32f8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00000000000179cb RCX: 00007f8902f8efc9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f89031e7da0 R08: 0000000000000001 R09: 00000008e01e35ef
R10: 0000001b2db20000 R11: 0000000000000246 R12: 00007f89031e609c
R13: 00007f89031e6090 R14: ffffffffffffffff R15: 00007ffde01e3410
 </TASK>