Extracting prog: 1m8.144554322s
Minimizing prog: 14m36.707131454s
Simplifying prog options: 4m30.43236632s
Extracting C: 1m12.268463261s
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_genetlink_get_family_id$devlink-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
syz_genetlink_get_family_id$devlink(0x0, 0xffffffffffffffff)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx
single: successfully extracted reproducer
found reproducer with 10 syscalls
minimizing guilty program
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_genetlink_get_family_id$devlink-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
syz_genetlink_get_family_id$devlink(0x0, 0xffffffffffffffff)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_genetlink_get_family_id$devlink-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
syz_genetlink_get_family_id$devlink(0x0, 0xffffffffffffffff)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
accept4(r0, 0x0, 0x0, 0x0)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_genetlink_get_family_id$devlink-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
syz_genetlink_get_family_id$devlink(0x0, 0xffffffffffffffff)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_genetlink_get_family_id$devlink-bind$inet6-listen-socket$inet_dccp-setsockopt-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
syz_genetlink_get_family_id$devlink(0x0, 0xffffffffffffffff)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_genetlink_get_family_id$devlink-bind$inet6-listen-socket$inet_dccp-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
syz_genetlink_get_family_id$devlink(0x0, 0xffffffffffffffff)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_genetlink_get_family_id$devlink-bind$inet6-listen-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
syz_genetlink_get_family_id$devlink(0x0, 0xffffffffffffffff)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
setsockopt(0xffffffffffffffff, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(0xffffffffffffffff, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r1 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(0xffffffffffffffff, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_genetlink_get_family_id$devlink-bind$inet6-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
syz_genetlink_get_family_id$devlink(0x0, 0xffffffffffffffff)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_genetlink_get_family_id$devlink-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
syz_genetlink_get_family_id$devlink(0x0, 0xffffffffffffffff)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
bind$inet6(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(0xffffffffffffffff, 0x101)
r0 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r0, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r0, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r1 = accept4(0xffffffffffffffff, 0x0, 0x0, 0x0)
sendmsg$nl_route(r1, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r0, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, 0x0, 0x0)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, 0x0, 0x0)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff), 0x0)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, 0x0, 0x0)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, 0x0, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={0x0, 0x14}}, 0x0) (async, rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (rerun: 64)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async)
write$binfmt_aout(r1, 0x0, 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1)

program did not crash
extracting C reproducer
testing compiled C program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
program did not crash
simplifying guilty program options
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program did not crash
testing program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x6, 0x0)
bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e20}, 0x1c)
listen(r0, 0x101)
r1 = socket$inet_dccp(0x2, 0x6, 0x0)
setsockopt(r1, 0x10d, 0x800000000d, &(0x7f00001c9fff)="03", 0x1)
connect$inet(r1, &(0x7f0000e5c000)={0x2, 0x4e20, @dev}, 0x3a)
r2 = accept4(r0, 0x0, 0x0, 0x0)
sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000280)={&(0x7f0000000200)=ANY=[], 0x14}}, 0x0) (async)
write$binfmt_aout(r1, &(0x7f00000019c0)=ANY=[], 0xc1) (rerun: 64)

program crashed: BUG: please report to dccp@vger.kernel.org => prev = NUM, last = NUM at net/dccp/ccids/lib/packet_history.c:LINE/tfrc_rx
extracting C reproducer
testing compiled C program (duration=35.22308923s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-bind$inet6-listen-socket$inet_dccp-setsockopt-connect$inet-accept4-sendmsg$nl_route-write$binfmt_aout
program did not crash
reproducing took 20m55.794447223s
repro crashed as (corrupted=false):
BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt()
CPU: 1 UID: 0 PID: 6332 Comm: syz.0.102 Not tainted 6.13.0-rc4-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 tfrc_rx_hist_sample_rtt+0x3e1/0x4a0 net/dccp/ccids/lib/packet_history.c:414
 ccid3_hc_rx_packet_recv+0x443/0xf50 net/dccp/ccids/ccid3.c:760
 ccid_hc_rx_packet_recv net/dccp/ccid.h:182 [inline]
 dccp_deliver_input_to_ccids+0xe3/0x270 net/dccp/input.c:176
 dccp_rcv_established net/dccp/input.c:374 [inline]
 dccp_rcv_established+0x10a/0x160 net/dccp/input.c:364
 dccp_v4_do_rcv+0x171/0x1b0 net/dccp/ipv4.c:680
 sk_backlog_rcv include/net/sock.h:1121 [inline]
 __sk_receive_skb+0x7aa/0x890 net/core/sock.c:568
 dccp_v4_rcv+0x1153/0x1d30 net/dccp/ipv4.c:903
 ip_protocol_deliver_rcu+0x441/0x4c0 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x316/0x570 net/ipv4/ip_input.c:233
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 ip_local_deliver+0x18e/0x1f0 net/ipv4/ip_input.c:254
 dst_input include/net/dst.h:460 [inline]
 ip_rcv_finish net/ipv4/ip_input.c:447 [inline]
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 ip_rcv+0x2c3/0x5d0 net/ipv4/ip_input.c:567
 __netif_receive_skb_one_core+0x199/0x1e0 net/core/dev.c:5672
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:5785
 process_backlog+0x443/0x15f0 net/core/dev.c:6117
 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6883
 napi_poll net/core/dev.c:6952 [inline]
 net_rx_action+0xa94/0x1010 net/core/dev.c:7074
 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
 do_softirq kernel/softirq.c:462 [inline]
 do_softirq+0xb2/0xf0 kernel/softirq.c:449
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:389
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline]
 __dev_queue_xmit+0x8b0/0x43e0 net/core/dev.c:4461
 dev_queue_xmit include/linux/netdevice.h:3168 [inline]
 neigh_hh_output include/net/neighbour.h:523 [inline]
 neigh_output include/net/neighbour.h:537 [inline]
 ip_finish_output2+0xc6c/0x2150 net/ipv4/ip_output.c:236
 __ip_finish_output net/ipv4/ip_output.c:314 [inline]
 __ip_finish_output+0x49e/0x950 net/ipv4/ip_output.c:296
 ip_finish_output+0x35/0x380 net/ipv4/ip_output.c:324
 NF_HOOK_COND include/linux/netfilter.h:303 [inline]
 ip_output+0x13b/0x2a0 net/ipv4/ip_output.c:434
 dst_output include/net/dst.h:450 [inline]
 ip_local_out+0x33e/0x4a0 net/ipv4/ip_output.c:130
 __ip_queue_xmit+0x777/0x1970 net/ipv4/ip_output.c:536
 dccp_transmit_skb+0xd59/0x1660 net/dccp/output.c:138
 dccp_xmit_packet+0x1f8/0x6d0 net/dccp/output.c:281
 dccp_write_xmit+0x16f/0x1d0 net/dccp/output.c:366
 dccp_sendmsg+0x9b7/0xd10 net/dccp/proto.c:801
 inet_sendmsg+0x119/0x140 net/ipv4/af_inet.c:851
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg net/socket.c:726 [inline]
 sock_write_iter+0x4ac/0x5b0 net/socket.c:1147
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0x5ae/0x1150 fs/read_write.c:679
 ksys_write+0x207/0x250 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f154c185d29
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:00007f154d001038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f154c376080 RCX: 00007f154c185d29
RDX: 00000000000000c1 RSI: 00000000200019c0 RDI: 0000000000000004
RBP: 00007f154c201aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f154c376080 R15: 00007ffe351e15e8
 </TASK>

final repro crashed as (corrupted=false):
BUG: please report to dccp@vger.kernel.org => prev = 0, last = 0 at net/dccp/ccids/lib/packet_history.c:414/tfrc_rx_hist_sample_rtt()
CPU: 1 UID: 0 PID: 6332 Comm: syz.0.102 Not tainted 6.13.0-rc4-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
 tfrc_rx_hist_sample_rtt+0x3e1/0x4a0 net/dccp/ccids/lib/packet_history.c:414
 ccid3_hc_rx_packet_recv+0x443/0xf50 net/dccp/ccids/ccid3.c:760
 ccid_hc_rx_packet_recv net/dccp/ccid.h:182 [inline]
 dccp_deliver_input_to_ccids+0xe3/0x270 net/dccp/input.c:176
 dccp_rcv_established net/dccp/input.c:374 [inline]
 dccp_rcv_established+0x10a/0x160 net/dccp/input.c:364
 dccp_v4_do_rcv+0x171/0x1b0 net/dccp/ipv4.c:680
 sk_backlog_rcv include/net/sock.h:1121 [inline]
 __sk_receive_skb+0x7aa/0x890 net/core/sock.c:568
 dccp_v4_rcv+0x1153/0x1d30 net/dccp/ipv4.c:903
 ip_protocol_deliver_rcu+0x441/0x4c0 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x316/0x570 net/ipv4/ip_input.c:233
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 ip_local_deliver+0x18e/0x1f0 net/ipv4/ip_input.c:254
 dst_input include/net/dst.h:460 [inline]
 ip_rcv_finish net/ipv4/ip_input.c:447 [inline]
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 ip_rcv+0x2c3/0x5d0 net/ipv4/ip_input.c:567
 __netif_receive_skb_one_core+0x199/0x1e0 net/core/dev.c:5672
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:5785
 process_backlog+0x443/0x15f0 net/core/dev.c:6117
 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6883
 napi_poll net/core/dev.c:6952 [inline]
 net_rx_action+0xa94/0x1010 net/core/dev.c:7074
 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
 do_softirq kernel/softirq.c:462 [inline]
 do_softirq+0xb2/0xf0 kernel/softirq.c:449
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:389
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:919 [inline]
 __dev_queue_xmit+0x8b0/0x43e0 net/core/dev.c:4461
 dev_queue_xmit include/linux/netdevice.h:3168 [inline]
 neigh_hh_output include/net/neighbour.h:523 [inline]
 neigh_output include/net/neighbour.h:537 [inline]
 ip_finish_output2+0xc6c/0x2150 net/ipv4/ip_output.c:236
 __ip_finish_output net/ipv4/ip_output.c:314 [inline]
 __ip_finish_output+0x49e/0x950 net/ipv4/ip_output.c:296
 ip_finish_output+0x35/0x380 net/ipv4/ip_output.c:324
 NF_HOOK_COND include/linux/netfilter.h:303 [inline]
 ip_output+0x13b/0x2a0 net/ipv4/ip_output.c:434
 dst_output include/net/dst.h:450 [inline]
 ip_local_out+0x33e/0x4a0 net/ipv4/ip_output.c:130
 __ip_queue_xmit+0x777/0x1970 net/ipv4/ip_output.c:536
 dccp_transmit_skb+0xd59/0x1660 net/dccp/output.c:138
 dccp_xmit_packet+0x1f8/0x6d0 net/dccp/output.c:281
 dccp_write_xmit+0x16f/0x1d0 net/dccp/output.c:366
 dccp_sendmsg+0x9b7/0xd10 net/dccp/proto.c:801
 inet_sendmsg+0x119/0x140 net/ipv4/af_inet.c:851
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg net/socket.c:726 [inline]
 sock_write_iter+0x4ac/0x5b0 net/socket.c:1147
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0x5ae/0x1150 fs/read_write.c:679
 ksys_write+0x207/0x250 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f154c185d29
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:00007f154d001038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f154c376080 RCX: 00007f154c185d29
RDX: 00000000000000c1 RSI: 00000000200019c0 RDI: 0000000000000004
RBP: 00007f154c201aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f154c376080 R15: 00007ffe351e15e8
 </TASK>