Extracting prog: 6m19.72814792s
Minimizing prog: 1h48m25.051849682s
Simplifying prog options: 0s
Extracting C: 42.695458398s
Simplifying C: 16m21.724380897s


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$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

program crashed: WARNING in ceph_con_v2_try_read
single: successfully extracted reproducer
found reproducer with 9 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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
accept$inet(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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-listen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
fsconfig$FSCONFIG_SET_STRING(0xffffffffffffffff, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(0xffffffffffffffff, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
r1 = accept$inet(r0, 0x0, 0x0)
write(r1, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
bind$inet(0xffffffffffffffff, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(0xffffffffffffffff, 0x5)
r0 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = accept$inet(0xffffffffffffffff, 0x0, 0x0)
write(r1, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, 0x0, 0x0)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(0x0, 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, 0x0, &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', 0x0, 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, 0x0, &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', 0x0, 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, 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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800), 0x0)

program did not crash
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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
program crashed: WARNING in ceph_con_v2_try_read
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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-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: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$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
testing compiled C program (duration=6m0s, {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$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
program crashed: WARNING in ceph_con_v2_try_read
testing compiled C program (duration=6m0s, {Threaded:true 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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
program crashed: WARNING in ceph_con_v2_try_read
testing compiled C program (duration=6m0s, {Threaded:true 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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
program crashed: WARNING in ceph_con_v2_try_read
testing compiled C program (duration=6m0s, {Threaded:true 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}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
program crashed: WARNING in ceph_con_v2_try_read
testing compiled C program (duration=6m0s, {Threaded:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
program crashed: WARNING in ceph_con_v2_try_read
testing compiled C program (duration=6m0s, {Threaded:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
program crashed: WARNING in ceph_con_v2_try_read
testing program (duration=6m0s, {Threaded:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

program crashed: WARNING in ceph_con_v2_try_read
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

program crashed: WARNING in ceph_con_v2_try_read
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_tcp-bind$inet-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_SET_STRING-fsconfig$FSCONFIG_CMD_CREATE-accept$inet-write
detailed listing:
executing program 0:
r0 = socket$inet_tcp(0x2, 0x1, 0x0)
bind$inet(r0, &(0x7f0000000000)={0x2, 0x1a85, @loopback}, 0x10)
listen(r0, 0x5)
r1 = fsopen(&(0x7f0000000100)='ceph\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000200)='source\x00', &(0x7f0000000300)='127.0.0.1:6789:/\x00', 0x0)
fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000400)='ms_mode\x00', &(0x7f0000000500)='crc\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = accept$inet(r0, 0x0, 0x0)
write(r2, &(0x7f0000000800)='ceph v2\n\x00'/20, 0x1c)

program crashed: WARNING in ceph_con_v2_try_read
validation run: crashed=true
reproducing took 2h17m44.725244099s
repro crashed as (corrupted=false):
------------[ cut here ]------------
!iov_iter_count(&con->v2.in_iter)
WARNING: net/ceph/messenger_v2.c:3129 at populate_in_iter net/ceph/messenger_v2.c:3129 [inline], CPU#1: kworker/1:0/32
WARNING: net/ceph/messenger_v2.c:3129 at ceph_con_v2_try_read+0x6634/0x6810 net/ceph/messenger_v2.c:3159, CPU#1: kworker/1:0/32
Modules linked in:
CPU: 1 UID: 0 PID: 32 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: ceph-msgr ceph_con_workfn
RIP: 0010:populate_in_iter net/ceph/messenger_v2.c:3129 [inline]
RIP: 0010:ceph_con_v2_try_read+0x6634/0x6810 net/ceph/messenger_v2.c:3159
Code: 8d 3d 60 8d cd 04 43 0f b6 04 3e 84 c0 48 8b 54 24 38 0f 85 85 00 00 00 8b 32 67 48 0f b9 3a e9 40 ff ff ff e8 cd f7 b0 f6 90 <0f> 0b 90 41 bd c3 ff ff ff e9 32 ff ff ff e8 b9 f7 b0 f6 90 0f 0b
RSP: 0018:ffffc90000a6f500 EFLAGS: 00010293
RAX: ffffffff8b14abe3 RBX: 0000000000000000 RCX: ffff88801e6a5dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a6fad8 R08: 0000000000000000 R09: 0000000000000000
R10: ffff888037074703 R11: ffffed1006e0e8e2 R12: fffff5200014def0
R13: 0000000000000000 R14: 0000000000000010 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888125af2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbe219ccff8 CR3: 000000003689c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ceph_con_workfn+0x1f5/0x14a0 net/ceph/messenger.c:1575
 process_one_work+0xaaf/0x1480 kernel/workqueue.c:3379
 process_scheduled_works kernel/workqueue.c:3462 [inline]
 worker_thread+0xb05/0x10d0 kernel/workqueue.c:3543
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

final repro crashed as (corrupted=false):
------------[ cut here ]------------
!iov_iter_count(&con->v2.in_iter)
WARNING: net/ceph/messenger_v2.c:3129 at populate_in_iter net/ceph/messenger_v2.c:3129 [inline], CPU#1: kworker/1:0/32
WARNING: net/ceph/messenger_v2.c:3129 at ceph_con_v2_try_read+0x6634/0x6810 net/ceph/messenger_v2.c:3159, CPU#1: kworker/1:0/32
Modules linked in:
CPU: 1 UID: 0 PID: 32 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: ceph-msgr ceph_con_workfn
RIP: 0010:populate_in_iter net/ceph/messenger_v2.c:3129 [inline]
RIP: 0010:ceph_con_v2_try_read+0x6634/0x6810 net/ceph/messenger_v2.c:3159
Code: 8d 3d 60 8d cd 04 43 0f b6 04 3e 84 c0 48 8b 54 24 38 0f 85 85 00 00 00 8b 32 67 48 0f b9 3a e9 40 ff ff ff e8 cd f7 b0 f6 90 <0f> 0b 90 41 bd c3 ff ff ff e9 32 ff ff ff e8 b9 f7 b0 f6 90 0f 0b
RSP: 0018:ffffc90000a6f500 EFLAGS: 00010293
RAX: ffffffff8b14abe3 RBX: 0000000000000000 RCX: ffff88801e6a5dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a6fad8 R08: 0000000000000000 R09: 0000000000000000
R10: ffff888037074703 R11: ffffed1006e0e8e2 R12: fffff5200014def0
R13: 0000000000000000 R14: 0000000000000010 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888125af2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbe219ccff8 CR3: 000000003689c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 ceph_con_workfn+0x1f5/0x14a0 net/ceph/messenger.c:1575
 process_one_work+0xaaf/0x1480 kernel/workqueue.c:3379
 process_scheduled_works kernel/workqueue.c:3462 [inline]
 worker_thread+0xb05/0x10d0 kernel/workqueue.c:3543
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>