Extracting prog: 14m58.942814194s
Minimizing prog: 1h2m49.609204202s
Simplifying prog options: 0s
Extracting C: 2m24.690758996s
Simplifying C: 55m52.010010175s


extracting reproducer from 30 programs
testing a last program of every proc
single: executing 5 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection: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$inet6-getsockopt$inet6_opts-sendmsg$NFT_BATCH-sendmsg$TIPC_NL_MON_GET-syz_init_net_socket$nl_rdma-socket$inet6_udp-setsockopt$IP6T_SO_SET_REPLACE-sendmsg$netlink-socket-ioctl$sock_SIOCGIFINDEX-recvmsg$can_raw
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x4, 0x6)
getsockopt$inet6_opts(r0, 0x29, 0x3b, &(0x7f0000000d00)=""/81, &(0x7f0000000d80)=0x51)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000009b40)={0x0, 0x0, &(0x7f0000009b00)={&(0x7f0000000340)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a3c000000090a010400000000000000000a0000040900010073797a310000000008000540000000020900020073797afc3c0000000c0a010100000000000000000a0000060900020073797a31000000000900010073797a310000000010b615cd89f1b3621c000340000000022c00b3120e0a1f0200000000000000000a0000000900010073797a31000000000900020073797a310000000014000000110001"], 0xcc}, 0x1, 0x0, 0x0, 0x4000850}, 0x40)
sendmsg$TIPC_NL_MON_GET(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000440)={&(0x7f0000000300)=ANY=[@ANYBLOB="28f80100", @ANYRES16, @ANYBLOB="04002abd7000fedbdf251200000014010180170001006574683a6261746164765f736c6176655f3100004c0002800800030009000000080002000c000000080002008a7b0000080002000500000008000400ff0000000800030000000000080002000104000008000300090000000800030000000100380004001400010002004e21ac1e01010000000000000000200002000a004e2100000009000000000000000000000000000000010c000000080003000400000034000280080001001e0000000800030005000000080001001c0000000800"], 0x128}, 0x1, 0x0, 0x0, 0x4000}, 0x10)
r1 = syz_init_net_socket$nl_rdma(0x10, 0x3, 0x10)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$IP6T_SO_SET_REPLACE(r2, 0x29, 0x40, &(0x7f00000004c0)=@raw={'raw\x00', 0x3c1, 0x3, 0x310, 0x118, 0x18c, 0x203, 0x118, 0x19030000, 0x240, 0x2e0, 0x2e0, 0x240, 0x2e0, 0x7fffffe, 0x0, {[{{@uncond, 0x300, 0xf0, 0x118, 0x0, {0x1000000}, [@common=@unspec=@limit={{0x48}, {0x7a, 0x7f, 0x40, 0x8, 0xe6, 0x75800a43, 0xfffffffffffffff9}}]}, @common=@unspec=@NFQUEUE3={0x28, 'NFQUEUE\x00', 0x3, {0x2, 0x10, 0x2}}}, {{@uncond, 0x0, 0xe0, 0x128, 0x0, {}, [@common=@unspec=@connbytes={{0x38}, {[{0x7}, {0x2}], 0xe48c145443541728, 0x2}}]}, @common=@unspec=@IDLETIMER={0x48, 'IDLETIMER\x00', 0x0, {0xb, 'syz0\x00', {0x6cb}}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x370)
sendmsg$netlink(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f00000000c0)=[{&(0x7f0000000000)=ANY=[@ANYBLOB="180100003000010003000000fbdbdf250697c929e4ecb081e234f3fb7bc31bc1d3284124b08b8ec7b98b58a22f206482dfc6182ac157de443eace0294d18f3547de7cf8740ed0f1a5229ed2fdf6a1d8a97890115231cda625a14a15cd29b45e8798e429548565dcbcc643d2eed3605a3332461768c628f763cafd1d253cee8768b4607c009e32d2be46ef43bdf2f2b7abd9d6bd813a9bd63764d02406ae07ad1934b"], 0x118}], 0x1, 0x0, 0x0, 0x1}, 0x0)
r3 = socket(0x400000000010, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000100)={'syzkaller0\x00'})
recvmsg$can_raw(r3, &(0x7f0000000cc0)={&(0x7f0000000140)=@rxrpc=@in4={0x21, 0x0, 0x2, 0x10, {0x2, 0x0, @private}}, 0x80, &(0x7f0000000c00)=[{&(0x7f0000000200)=""/138, 0x8a}, {&(0x7f0000000840)=""/138, 0x8a}, {&(0x7f0000000900)=""/251, 0xfb}, {&(0x7f0000000a00)=""/237, 0xed}, {&(0x7f0000000b00)=""/73, 0x49}, {&(0x7f0000000b80)=""/80, 0x50}], 0x6, &(0x7f0000000c80)=""/14, 0xe}, 0x40)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection: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}}): bpf$PROG_LOAD-socket-setsockopt$MRT6_FLUSH-bpf$BPF_PROG_TEST_RUN-socket$key-sendmsg$key-socket$netlink-socket$nl_route-sendmsg$nl_route-socket$netlink-socket-sendmsg$NL80211_CMD_CRIT_PROTOCOL_START-sendmsg$IPSET_CMD_FLUSH-getsockname$packet-sendmsg$nl_route-sendmsg$nl_route-sendmsg$nl_route-sendmsg$nl_route-accept$unix-bind$unix-socket$nl_route-sendmsg$nl_route
detailed listing:
executing program 0:
r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000800)={0xc, 0xe, &(0x7f0000000980)=ANY=[@ANYBLOB="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"], &(0x7f00000015c0)='syzkaller\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000001600), 0x8, 0x10, &(0x7f0000001640), 0x6, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x10, 0xe9}, 0x94) (async)
r1 = socket(0xa, 0x3, 0x3a)
setsockopt$MRT6_FLUSH(r1, 0x29, 0xd4, &(0x7f00000008c0)=0x4, 0x4)
bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000001680)={r0, 0x18000000000002a0, 0xe, 0x0, &(0x7f0000001700)="b907ef19edfff007049e0ff0888e", 0x0, 0x0, 0x18000000, 0x0, 0x0, 0x0, 0x0}, 0x50)
r2 = socket$key(0xf, 0x3, 0x2)
sendmsg$key(r2, &(0x7f0000000100)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000700)=ANY=[@ANYBLOB="020d000010000000000000000000000008001200020002000000000000000000100032001e000000000000000000000010003300000000000000000000000000fc02000000000000000000000000000003000500000000000200000dac1414aa0000000000000000030006000000000002"], 0x80}}, 0x0) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r4, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000240)={&(0x7f00000002c0)=ANY=[@ANYBLOB="1c000001000001000000000000000000026000"/28], 0x1c}}, 0x0)
r5 = socket$netlink(0x10, 0x3, 0x0) (async)
r6 = socket(0x10, 0x803, 0x0)
sendmsg$NL80211_CMD_CRIT_PROTOCOL_START(r6, &(0x7f0000000580)={0x0, 0x0, &(0x7f0000000540)={0x0, 0x1c}}, 0x0)
sendmsg$IPSET_CMD_FLUSH(r3, &(0x7f00000007c0)={&(0x7f0000000500), 0xc, &(0x7f0000000780)={&(0x7f00000005c0)=ANY=[@ANYBLOB="380000000406030000000000000000000700000a050001000700000005000100070000000900020073796b30000000000c00010007000000"], 0x38}}, 0x40000)
getsockname$packet(r6, &(0x7f0000000600)={0x11, 0x0, <r7=>0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000080)=0x14)
sendmsg$nl_route(r5, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000640)=ANY=[@ANYBLOB="3c0000001000850600000000ff6122314a000800", @ANYRES32=r7, @ANYBLOB="00001000252155b21c0012000c000100626f6e64000000000c0002000800010001"], 0x3c}}, 0x40000) (async)
sendmsg$nl_route(r6, &(0x7f0000000280)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000001cc0)=ANY=[@ANYBLOB="3c0000001000030500000000fcffffff00000000", @ANYRES32=0x0, @ANYBLOB="00000000000000001400128009000100626f6e64000000000400028008000a00", @ANYRES32=r7], 0x3c}, 0x1, 0x0, 0x0, 0x800}, 0x4000)
sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000003c0)=ANY=[@ANYBLOB="000000004300200026bd7000fddbdf250a000000000002000500000000000200548700000000010023000000000008000800000000000000000004000c00000000000200080000000000040000010000000004000800000000000800090000000000000000000680000008000700000000000e000008000000000100", @ANYRES32=r7, @ANYBLOB="000011000900000000000c0009980a326795f899276667636b930b00000000000000000009000000000300000f00000000000000008b320000000700070000000000000000000b003ed80e201ee20b90311b839d0ee6f1f46033a5afb75cacbdb336799762b6aff2b19dbad8c30af66e84e6b1f0b488dbbb"], 0xffffffffffffff16}, 0x1, 0x0, 0x0, 0x2000ce94}, 0x20048040) (async)
sendmsg$nl_route(r3, &(0x7f00000000c0)={0x0, 0x0, &(0x7f00000004c0)={&(0x7f0000000900)=ANY=[@ANYBLOB="5c00000010001ffffcffffff0000000000000000", @ANYRES32=0x0, @ANYBLOB="0000000000000000340012800b0001006772657461700000240002800800070064010100060003001008000008001500700f0d0008000700ac1414bb08000a00", @ANYRES32=r7], 0x5c}}, 0x40) (async)
r8 = accept$unix(r6, &(0x7f0000000300), &(0x7f0000000380)=0x6e)
bind$unix(r8, &(0x7f0000000680)=@file={0x0, './file0\x00'}, 0x6e) (async)
r9 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route(r9, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000040)=ANY=[@ANYBLOB="3c0000001000010400eeffff11ffffffff000000", @ANYRES32=r7], 0x3c}, 0x1, 0x0, 0x0, 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection: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$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000300)={'veth0\x00', <r2=>0x0})
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000000)={0x10, 0x3, &(0x7f0000000240)=@framed={{0x6d, 0xa, 0xa, 0x0, 0x0, 0x79, 0x10, 0x8}}, &(0x7f0000000280)='syzkaller\x00'}, 0x80)
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000000c0)=@newqdisc={0xc8, 0x24, 0x601, 0x1000000, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x98, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x34, 0x2, 0x0, 0x1, [{0x1c, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x10001}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x692}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8}]}, {0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x31dd}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x484}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xc8}}, 0x0)

program crashed: INFO: rcu detected stall in worker_thread
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-bpf$BPF_PROG_RAW_TRACEPOINT_LOAD
detailed listing:
executing program 0:
socket$nl_route(0x10, 0x3, 0x0)
r0 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'veth0\x00'})
bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000000)={0x10, 0x3, &(0x7f0000000240)=@framed={{0x6d, 0xa, 0xa, 0x0, 0x0, 0x79, 0x10, 0x8}}, &(0x7f0000000280)='syzkaller\x00'}, 0x80)

program did not crash
testing program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000300)={'veth0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000000c0)=@newqdisc={0xc8, 0x24, 0x601, 0x1000000, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x98, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x34, 0x2, 0x0, 0x1, [{0x1c, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x10001}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x692}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8}]}, {0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x31dd}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x484}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xc8}}, 0x0)

program crashed: INFO: rcu detected stall in worker_thread
testing program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
socket$inet(0x2, 0x2, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000000c0)=@newqdisc={0xc8, 0x24, 0x601, 0x1000000, 0x0, {0x0, 0x0, 0x0, 0x0, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x98, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x34, 0x2, 0x0, 0x1, [{0x1c, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x10001}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x692}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8}]}, {0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x31dd}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x484}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xc8}}, 0x0)

program did not crash
testing program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000300)={'veth0\x00', <r1=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000000c0)=@newqdisc={0xc8, 0x24, 0x601, 0x1000000, 0x0, {0x0, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x98, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x34, 0x2, 0x0, 0x1, [{0x1c, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x10001}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x692}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8}]}, {0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x31dd}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x484}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xc8}}, 0x0)

program did not crash
testing program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'veth0\x00', <r1=>0x0})
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000000c0)=@newqdisc={0xc8, 0x24, 0x601, 0x1000000, 0x0, {0x0, 0x0, 0x0, r1, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x98, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x34, 0x2, 0x0, 0x1, [{0x1c, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x10001}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x692}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8}]}, {0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x31dd}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x484}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xc8}}, 0x0)

program did not crash
testing program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000000c0)=@newqdisc={0xc8, 0x24, 0x601, 0x1000000, 0x0, {0x0, 0x0, 0x0, 0x0, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x98, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x34, 0x2, 0x0, 0x1, [{0x1c, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x10001}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x692}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8}]}, {0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x31dd}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x484}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xc8}}, 0x0)

program did not crash
testing program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000300)={'veth0\x00'})
sendmsg$nl_route_sched(r0, 0x0, 0x0)

program did not crash
testing program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000300)={'veth0\x00'})
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, 0x0}, 0x0)

program did not crash
testing program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000300)={'veth0\x00'})
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={0x0}}, 0x0)

program did not crash
testing program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000300)={'veth0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000000c0)=@newqdisc={0x34, 0x24, 0x601, 0x1000000, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x4}}]}, 0x34}}, 0x0)

program did not crash
testing program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000300)={'veth0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000000c0)=@newqdisc={0xb0, 0x24, 0x601, 0x1000000, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x80, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x1c, 0x2, 0x0, 0x1, [{0x4}, {0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x31dd}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x484}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xb0}}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=5m5.657793968s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
simplifying C reproducer
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
testing compiled C program (duration=5m5.657793968s, {Threaded:false 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$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in sys_getsockopt
a never seen crash title: INFO: rcu detected stall in sys_getsockopt, ignore
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false 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$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false 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$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in corrupted
a never seen crash title: INFO: rcu detected stall in corrupted, ignore
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true 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$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in do_idle
a never seen crash title: INFO: rcu detected stall in do_idle, ignore
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false 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$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false 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$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in nbcon_kthread_func
a never seen crash title: INFO: rcu detected stall in nbcon_kthread_func, ignore
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false 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$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in __unix_dgram_recvmsg
a never seen crash title: INFO: rcu detected stall in __unix_dgram_recvmsg, ignore
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in x64_sys_call
a never seen crash title: INFO: rcu detected stall in x64_sys_call, ignore
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in exit_to_user_mode_loop
a never seen crash title: INFO: rcu detected stall in exit_to_user_mode_loop, ignore
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in rawv6_sendmsg
a never seen crash title: INFO: rcu detected stall in rawv6_sendmsg, ignore
testing compiled C program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
testing program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000300)={'veth0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000000c0)=@newqdisc={0xc8, 0x24, 0x601, 0x1000000, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x98, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x34, 0x2, 0x0, 0x1, [{0x1c, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x10001}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x692}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8}]}, {0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x31dd}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x484}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xc8}}, 0x0)

program crashed: INFO: rcu detected stall in worker_thread
validation run: crashed=true
testing program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000300)={'veth0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000000c0)=@newqdisc={0xc8, 0x24, 0x601, 0x1000000, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x98, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x34, 0x2, 0x0, 0x1, [{0x1c, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x10001}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x692}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8}]}, {0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x31dd}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x484}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xc8}}, 0x0)

program crashed: INFO: rcu detected stall in __unix_dgram_recvmsg
validation run: crashed=true
testing program (duration=5m5.657793968s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
r1 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000300)={'veth0\x00', <r2=>0x0})
sendmsg$nl_route_sched(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000000c0)=@newqdisc={0xc8, 0x24, 0x601, 0x1000000, 0x0, {0x0, 0x0, 0x0, r2, {}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x98, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x34, 0x2, 0x0, 0x1, [{0x1c, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x10001}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x692}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8}]}, {0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0x31dd}, @TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x484}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xc8}}, 0x0)

program crashed: INFO: rcu detected stall in x64_sys_call
validation run: crashed=true
reproducing took 2h29m35.329150192s
repro crashed as (corrupted=false):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=50cc/1/0x4000000000000000 softirq=18563/18570 fqs=1
rcu: 	(detected by 1, t=10504 jiffies, g=15461, q=1310 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5922 Comm: sed Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:match_held_lock+0xd8/0x120 kernel/locking/lockdep.c:-1
Code: 18 00 74 41 48 8b 4f 20 81 e1 ff 1f 00 00 48 c7 c2 d0 c4 3c 95 48 29 d0 48 c1 f8 03 49 0f af c6 bb 01 00 00 00 48 39 c1 74 02 <31> db 89 d8 5b 41 5e 41 5f e9 0a ff 02 00 cc b1 01 84 c9 0f 84 5e
RSP: 0018:ffffc90000007d68 EFLAGS: 00000046
RAX: 0000000000000004 RBX: 0000000000000001 RCX: 8000000001000002
RDX: 8000000001000001 RSI: ffff8880b8428298 RDI: ffff88807f82e9c0
RBP: 00000000ffffffff R08: 0000000001000001 R09: 0000000000000000
R10: ffff888034a23308 R11: ffffed1006944663 R12: 0000000000000046
R13: ffff88807f82ddc0 R14: ffff8880b8428298 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff888123abf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff01b623e9c CR3: 000000000fb48000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __lock_is_held kernel/locking/lockdep.c:5654 [inline]
 lock_is_held_type+0x89/0x150 kernel/locking/lockdep.c:6016
 lock_is_held include/linux/lockdep.h:249 [inline]
 __run_hrtimer kernel/time/hrtimer.c:2040 [inline]
 __hrtimer_run_queues+0x20b/0xa10 kernel/time/hrtimer.c:2131
 hrtimer_interrupt+0x4cd/0xaa0 kernel/time/hrtimer.c:2250
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1068
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__sanitizer_cov_trace_cmp8+0x0/0xa0 kernel/kcov.c:289
Code: 74 0a 18 48 89 44 0a 20 c3 cc cc cc cc cc 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0d a8 fc cd 12 65 48 8b 15 a8 fc
RSP: 0018:ffffc900034ef590 EFLAGS: 00000206
RAX: 1ffffffff22f4f94 RBX: 0000000000014872 RCX: ffff88807f82ddc0
RDX: 0000000000000000 RSI: 0000000000014800 RDI: ffffffffffffffff
RBP: 000000fffffffe00 R08: ffffea0000521cf3 R09: 1ffffd40000a439e
R10: dffffc0000000000 R11: fffff940000a439f R12: dffffc0000000000
R13: 000000000023ffff R14: ffffffffffffffff R15: 0000000000014800
 is_huge_zero_pfn include/linux/huge_mm.h:567 [inline]
 __vm_normal_page mm/memory.c:808 [inline]
 vm_normal_page+0x12e/0x2b0 mm/memory.c:829
 zap_present_ptes mm/memory.c:1831 [inline]
 do_zap_pte_range mm/memory.c:1963 [inline]
 zap_pte_range mm/memory.c:2065 [inline]
 zap_pmd_range mm/memory.c:2151 [inline]
 zap_pud_range mm/memory.c:2179 [inline]
 zap_p4d_range mm/memory.c:2200 [inline]
 __zap_vma_range+0x107d/0x4f80 mm/memory.c:2240
 unmap_vmas+0x390/0x550 mm/memory.c:2309
 exit_mmap+0x293/0x9f0 mm/mmap.c:1315
 __mmput+0x118/0x420 kernel/fork.c:1193
 exit_mm+0x18e/0x240 kernel/exit.c:592
 do_exit+0x6cd/0x2360 kernel/exit.c:974
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1129
 __do_sys_exit_group kernel/exit.c:1140 [inline]
 __se_sys_exit_group kernel/exit.c:1138 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1138
 x64_sys_call+0x18c6/0x18d0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff01b7826c5
Code: Unable to access opcode bytes at 0x7ff01b78269b.
RSP: 002b:00007ffd8e3d68b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007ff01b883fe8 RCX: 00007ff01b7826c5
RDX: 00000000000000e7 RSI: ffffffffffffff88 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff01b882680 R15: 00007ff01b884000
 </TASK>
rcu: rcu_preempt kthread starved for 10500 jiffies! g15461 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27496 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2122
 rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2330
 kthread+0x38b/0x480 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>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 5755 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:csd_lock_wait kernel/smp.c:363 [inline]
RIP: 0010:csd_lock kernel/smp.c:396 [inline]
RIP: 0010:smp_call_function_many_cond+0x61e/0x1500 kernel/smp.c:944
Code: b6 04 04 84 c0 0f 85 d5 03 00 00 44 8b 3b 44 89 fe 83 e6 01 31 ff e8 91 59 0c 00 41 83 e7 01 75 07 e8 86 54 0c 00 eb 3f f3 90 <48> b8 00 00 00 00 00 fc ff df 41 0f b6 04 04 84 c0 75 0f f7 03 01
RSP: 0018:ffffc900043cf420 EFLAGS: 00000293
RAX: ffffffff81bbbc1e RBX: ffff8880b8443728 RCX: ffff888021788000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900043cf570 R08: ffff88802178959f R09: 1ffff110042f12b3
R10: dffffc0000000000 R11: 0000000000000000 R12: 1ffff110170886e5
R13: 0000000000000000 R14: ffff8880b8443720 R15: 0000000000000001
FS:  00005555830ed500(0000) GS:ffff888123bbf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5bc6a2cff8 CR3: 000000007ad30000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:46 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline]
 flush_tlb_mm_range+0x910/0x10b0 arch/x86/mm/tlb.c:1435
 dup_mmap+0x1758/0x1dc0 mm/mmap.c:1884
 dup_mm kernel/fork.c:1543 [inline]
 copy_mm+0x115/0x480 kernel/fork.c:1595
 copy_process+0x1e79/0x4400 kernel/fork.c:2311
 kernel_clone+0x2d7/0x940 kernel/fork.c:2771
 __do_sys_clone kernel/fork.c:2913 [inline]
 __se_sys_clone kernel/fork.c:2897 [inline]
 __x64_sys_clone+0x1b6/0x230 kernel/fork.c:2897
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2d12fc6fd2
Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffec3583e80 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffec3583e80 RCX: 00007f2d12fc6fd2
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffec358400c R08: 0000000000000000 R09: 0000000000000000
R10: 00005555830ed7d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 0000000000015858 R15: 00007ffec3584060
 </TASK>

final repro crashed as (corrupted=false):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=50cc/1/0x4000000000000000 softirq=18563/18570 fqs=1
rcu: 	(detected by 1, t=10504 jiffies, g=15461, q=1310 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5922 Comm: sed Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:match_held_lock+0xd8/0x120 kernel/locking/lockdep.c:-1
Code: 18 00 74 41 48 8b 4f 20 81 e1 ff 1f 00 00 48 c7 c2 d0 c4 3c 95 48 29 d0 48 c1 f8 03 49 0f af c6 bb 01 00 00 00 48 39 c1 74 02 <31> db 89 d8 5b 41 5e 41 5f e9 0a ff 02 00 cc b1 01 84 c9 0f 84 5e
RSP: 0018:ffffc90000007d68 EFLAGS: 00000046
RAX: 0000000000000004 RBX: 0000000000000001 RCX: 8000000001000002
RDX: 8000000001000001 RSI: ffff8880b8428298 RDI: ffff88807f82e9c0
RBP: 00000000ffffffff R08: 0000000001000001 R09: 0000000000000000
R10: ffff888034a23308 R11: ffffed1006944663 R12: 0000000000000046
R13: ffff88807f82ddc0 R14: ffff8880b8428298 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff888123abf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff01b623e9c CR3: 000000000fb48000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __lock_is_held kernel/locking/lockdep.c:5654 [inline]
 lock_is_held_type+0x89/0x150 kernel/locking/lockdep.c:6016
 lock_is_held include/linux/lockdep.h:249 [inline]
 __run_hrtimer kernel/time/hrtimer.c:2040 [inline]
 __hrtimer_run_queues+0x20b/0xa10 kernel/time/hrtimer.c:2131
 hrtimer_interrupt+0x4cd/0xaa0 kernel/time/hrtimer.c:2250
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1068
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__sanitizer_cov_trace_cmp8+0x0/0xa0 kernel/kcov.c:289
Code: 74 0a 18 48 89 44 0a 20 c3 cc cc cc cc cc 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0d a8 fc cd 12 65 48 8b 15 a8 fc
RSP: 0018:ffffc900034ef590 EFLAGS: 00000206
RAX: 1ffffffff22f4f94 RBX: 0000000000014872 RCX: ffff88807f82ddc0
RDX: 0000000000000000 RSI: 0000000000014800 RDI: ffffffffffffffff
RBP: 000000fffffffe00 R08: ffffea0000521cf3 R09: 1ffffd40000a439e
R10: dffffc0000000000 R11: fffff940000a439f R12: dffffc0000000000
R13: 000000000023ffff R14: ffffffffffffffff R15: 0000000000014800
 is_huge_zero_pfn include/linux/huge_mm.h:567 [inline]
 __vm_normal_page mm/memory.c:808 [inline]
 vm_normal_page+0x12e/0x2b0 mm/memory.c:829
 zap_present_ptes mm/memory.c:1831 [inline]
 do_zap_pte_range mm/memory.c:1963 [inline]
 zap_pte_range mm/memory.c:2065 [inline]
 zap_pmd_range mm/memory.c:2151 [inline]
 zap_pud_range mm/memory.c:2179 [inline]
 zap_p4d_range mm/memory.c:2200 [inline]
 __zap_vma_range+0x107d/0x4f80 mm/memory.c:2240
 unmap_vmas+0x390/0x550 mm/memory.c:2309
 exit_mmap+0x293/0x9f0 mm/mmap.c:1315
 __mmput+0x118/0x420 kernel/fork.c:1193
 exit_mm+0x18e/0x240 kernel/exit.c:592
 do_exit+0x6cd/0x2360 kernel/exit.c:974
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1129
 __do_sys_exit_group kernel/exit.c:1140 [inline]
 __se_sys_exit_group kernel/exit.c:1138 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1138
 x64_sys_call+0x18c6/0x18d0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff01b7826c5
Code: Unable to access opcode bytes at 0x7ff01b78269b.
RSP: 002b:00007ffd8e3d68b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007ff01b883fe8 RCX: 00007ff01b7826c5
RDX: 00000000000000e7 RSI: ffffffffffffff88 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff01b882680 R15: 00007ff01b884000
 </TASK>
rcu: rcu_preempt kthread starved for 10500 jiffies! g15461 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27496 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2122
 rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2330
 kthread+0x38b/0x480 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>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 5755 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:csd_lock_wait kernel/smp.c:363 [inline]
RIP: 0010:csd_lock kernel/smp.c:396 [inline]
RIP: 0010:smp_call_function_many_cond+0x61e/0x1500 kernel/smp.c:944
Code: b6 04 04 84 c0 0f 85 d5 03 00 00 44 8b 3b 44 89 fe 83 e6 01 31 ff e8 91 59 0c 00 41 83 e7 01 75 07 e8 86 54 0c 00 eb 3f f3 90 <48> b8 00 00 00 00 00 fc ff df 41 0f b6 04 04 84 c0 75 0f f7 03 01
RSP: 0018:ffffc900043cf420 EFLAGS: 00000293
RAX: ffffffff81bbbc1e RBX: ffff8880b8443728 RCX: ffff888021788000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900043cf570 R08: ffff88802178959f R09: 1ffff110042f12b3
R10: dffffc0000000000 R11: 0000000000000000 R12: 1ffff110170886e5
R13: 0000000000000000 R14: ffff8880b8443720 R15: 0000000000000001
FS:  00005555830ed500(0000) GS:ffff888123bbf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5bc6a2cff8 CR3: 000000007ad30000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:46 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline]
 flush_tlb_mm_range+0x910/0x10b0 arch/x86/mm/tlb.c:1435
 dup_mmap+0x1758/0x1dc0 mm/mmap.c:1884
 dup_mm kernel/fork.c:1543 [inline]
 copy_mm+0x115/0x480 kernel/fork.c:1595
 copy_process+0x1e79/0x4400 kernel/fork.c:2311
 kernel_clone+0x2d7/0x940 kernel/fork.c:2771
 __do_sys_clone kernel/fork.c:2913 [inline]
 __se_sys_clone kernel/fork.c:2897 [inline]
 __x64_sys_clone+0x1b6/0x230 kernel/fork.c:2897
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2d12fc6fd2
Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffec3583e80 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffec3583e80 RCX: 00007f2d12fc6fd2
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffec358400c R08: 0000000000000000 R09: 0000000000000000
R10: 00005555830ed7d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 0000000000015858 R15: 00007ffec3584060
 </TASK>