Extracting prog: 10m45.536664468s Minimizing prog: 59m2.248228794s Simplifying prog options: 6m24.921992028s Extracting C: 3m30.536447736s Simplifying C: 0s extracting reproducer from 72 programs testing a last program of every proc single: executing 22 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): io_uring_setup-ioctl$ifreq_SIOCGIFINDEX_vcan-socket$vsock_stream-prctl$PR_SCHED_CORE-prlimit64-sched_setscheduler-sched_setaffinity-syz_open_dev$MSR-read$msr-bpf$PROG_LOAD-socket$rds-bind$rds-openat$iommufd-ioctl$IOMMU_IOAS_ALLOC-ioctl$IOMMU_TEST_OP_ADD_RESERVED-ioctl$IOMMU_IOAS_MAP$PAGES-memfd_create detailed listing: executing program 0: io_uring_setup(0x355b, &(0x7f0000000140)={0x0, 0xe24b, 0x10, 0x5, 0x4000020}) ioctl$ifreq_SIOCGIFINDEX_vcan(0xffffffffffffffff, 0x8933, 0x0) socket$vsock_stream(0x28, 0x1, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000080)={0x80000000005, 0x100000001000087}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000180)=0x4) sched_setaffinity(0x0, 0x43, &(0x7f0000000040)=0x2) r0 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0) read$msr(r0, &(0x7f0000019680)=""/102392, 0x18ff8) bpf$PROG_LOAD(0x5, 0x0, 0x0) r1 = socket$rds(0x15, 0x5, 0x0) bind$rds(r1, &(0x7f0000000840)={0x2, 0x0, @loopback}, 0x10) r2 = openat$iommufd(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$IOMMU_IOAS_ALLOC(r2, 0x3b81, &(0x7f0000000040)={0xc, 0x0, 0x0}) ioctl$IOMMU_TEST_OP_ADD_RESERVED(r2, 0x3ba0, &(0x7f0000000740)={0x48, 0x1, r3, 0x0, 0x3a0b, 0x80000001}) ioctl$IOMMU_IOAS_MAP$PAGES(r2, 0x3b85, &(0x7f0000000180)={0x28, 0x4, r3, 0x0, &(0x7f0000ffd000/0x2000)=nil, 0x2000, 0x7}) memfd_create(&(0x7f0000000540)='\x01\xfd\xae.+\xa6\x8c\xb6?2\x199\x94S,|x?Ue[\xbd\xe1!\x033\xbc\'#\xff\x17\x9b%\xf3[d \x06\x00\x00\x00\x97A\xc2\xd8\xf0Uq!\xe4\xc4\xb1\xa2\x1c\xffC;\x94Q\r\xb6}\x9c\xecC\v\xcf\xeb\xe4\x9aR\xe5,\x82\x03\x00\x19\x8d\xe8\xc6\xb9\xe4\xb4\x99\x8a\x19P\xb8\x8cx\b\x99\x04R\x05\xaf\xa2\xea5\f\xcc\x1a\x9b\x00Uf\xa5\xf7\x80Tgiz\nX\b\x91\xfd0\x8e\xb6\xa3\v#\x16\xdf\xb4\xc0\xe6\xb4\xef\xa8i\xd8\xa2\xd2(\x98\x9bA\x8f\x13\xeb\xf4b/\xef!\x8f\xf6]-\xf1k\xb62\x89gEv\x13\xf4\xc7\xb2\xf5\\\x17\x90\xb5\xa6\xa8\xb8o\x0f\xe2 \xe7\x9c$\xd7\xf2@\xf7cdv[\t\x00\x8d\xf3\xcc1\r$\x1e\xff\xf0P\xb2\x97\xb8\xbc\xeb\x91\x87\x8bu\xbf\xd4\'\xff\x1f\f\x016\x9dQ\xeeT\xe8\bY\x00\xb2\x06\xa6\xbel\x9b.o\xbe\x80\x9dx\xd5O\xd6h\\I\xc9\x8d\a\x1d\xc9k\x83\xfc\xa4\xad4\x03\xa2X\x0f\x82\xdbs\xc7\x83L\x9e\xa2\xd1\xb3\xac\x8d\xd8\xb4\xb4\xea\x90Q\xd8\xc7\xeb%\x8bOp\x1ab\x96\xcf\xbb\x15\xcf\xfcN\xed\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00s\xaf\xa2\x14]p+\x96\x1ei|n\xda\xee\\\xae\x96*\x82*\xb8j\xda\xaa\x14\x1f\x1d\xf8\xf8\xae\xfcH\xc4\xb3j\xe8\xcfO\xef\x0e\xafe\xb5*\x89\x18\xb2w\x96\b\x1by\xeaT\xdd\xb3g6\xbc\x85\xb2Y\xccv\x06\x00\x00\x00\xc5e\x90\xc51\x9f\v_# \b\xa5\xbcP,|\xe9\xd6s\x1f\x1f\xbe\xd3\x80\xb1\xa8 \xce|df\x903\v\x02\xea.\x03X\xb5\xe4,8\xb7\xadEI\xdcA\xa7\xcc\xd7\xf9n\x1b\x95\xf8\x11Z\xe6:\x03\xce\xfe\x02\x8ctdy~_oC\x9e\xef\xf0\xa2K\xe9;\x8e:\x01\x03C\x92\xeb\x16\x1c\xbf\xbe\xef\xccUxhg\xdfY\xe6\x83\xa6z\xff\x01\x9d o_{!O\xaajU\x84 \xe9\xb59r\x9cw\x18Z\xd3\xcd\x0e\xba\\\xdb\xf0\xe1\x86\t\xaf\vi\xdc\xbf?\xf5\n\xbd^\x05\xc0\xceuC}\xa8\xc7\xad\x86\xd7\x15&\xb9]1\x05J\x96\xf0\x84\xc1\f\xa6p\x96?\x00\x00\x00\x00\x00\x00\x00\x12\x88\xc8\x9c\xc9Cn\xd4\xa47V\'+\xcc\xbf\r\xa9\x10\x1d\xcf\xebKlb\xe5:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00G\xdf\xbb\xc0_\x99F\xf4n]\x14\xbc\xcd\xd3\x9f\x9fe\xc5\xe6\xe8Mb\xc6\x82\x82\xcb\xcaXe\xe1\xa2\xaa\x02\x86\xb8\x18\xe2C\xeb\xa9\x17&\x01&\'w\xa1t0\x80\xf0\x93\x80\x9f\x9b\xe0\x9f\xea\xb9\x9eD]#V\xda\x92\xca\xc6\xfa.\xd6\xe31\xfe\xe8\x02\xebX\xbd\nz\x01O\xd3r\xa2\xa9u\x93>m\xd7q\'\xdf\xfajo\xd8n\xa7\xecJi\xde\xdf\x7f\xe3\xc4*Z 4\xe8S$\xa1H=\xdf\x05\xf3\xe3T\xd1\xdd\xc6f\xa4\xb4\x96\\\xa0\xf9\x0f\x17\x11{\xb6\x9d\xd21\xc1\x90Vj\x13r\x00\x00\xde\x03\xab\xff\x8as0\xc6E\xca\"\xd9*\x9a\x15\xb95r\x8f\xaaj\x82\xd6\xd2%\xed\xa2WQ\xec2\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xccX\xfdRB\xffU\xe9\xfa\x1f\xf6\xce\b\xde@\x061\xc6z\xe4\xe0\xc9?\xa7\x94>\x9c\xd1\xa5o\x04\xaaim\xae\xfe\xc7f\xa3\x96\xd7\xb4c)r{\r#\xddI&\n\xf2\xec\xd4\xff\x9f\x136zZ-2\x80\xfbH+\x9b8\xf3\xed\xdf\xa2my\xb28c[\xc3\xfe\xb5M\x84\x97\xa5\'s\xe9\xdc=)I\xabLt2\x9c\v\xd9S', 0x6) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-socket$netlink-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$inet(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bond0\x00', 0x0}) r2 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000840)=@newqdisc={0xac, 0x24, 0xf0b, 0x70bd2b, 0x0, {0x0, 0x0, 0x12, r1, {}, {0xffff, 0xffff}, {0x2, 0x9}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1], 0x0, [0x5, 0x4, 0x2, 0x0, 0x1, 0x0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3], [0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x8001]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xfd}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0xfffffff3}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8, 0x5, 0x7}]}}]}, 0xac}}, 0x0) program crashed: INFO: rcu detected stall in sys_sendto single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-socket$netlink detailed listing: executing program 0: r0 = socket$inet(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bond0\x00'}) socket$netlink(0x10, 0x3, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$inet(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bond0\x00', 0x0}) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000840)=@newqdisc={0xac, 0x24, 0xf0b, 0x70bd2b, 0x0, {0x0, 0x0, 0x12, r1, {}, {0xffff, 0xffff}, {0x2, 0x9}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1], 0x0, [0x5, 0x4, 0x2, 0x0, 0x1, 0x0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3], [0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x8001]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xfd}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0xfffffff3}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8, 0x5, 0x7}]}}]}, 0xac}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-socket$netlink-sendmsg$nl_route_sched detailed listing: executing program 0: socket$inet(0x10, 0x3, 0x0) r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r0, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000840)=@newqdisc={0xac, 0x24, 0xf0b, 0x70bd2b, 0x0, {0x0, 0x0, 0x12, 0x0, {}, {0xffff, 0xffff}, {0x2, 0x9}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1], 0x0, [0x5, 0x4, 0x2, 0x0, 0x1, 0x0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3], [0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x8001]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xfd}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0xfffffff3}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8, 0x5, 0x7}]}}]}, 0xac}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX-socket$netlink-sendmsg$nl_route_sched detailed listing: executing program 0: ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000300)={'bond0\x00', 0x0}) r1 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r1, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000840)=@newqdisc={0xac, 0x24, 0xf0b, 0x70bd2b, 0x0, {0x0, 0x0, 0x12, r0, {}, {0xffff, 0xffff}, {0x2, 0x9}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1], 0x0, [0x5, 0x4, 0x2, 0x0, 0x1, 0x0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3], [0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x8001]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xfd}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0xfffffff3}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8, 0x5, 0x7}]}}]}, 0xac}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-socket$netlink-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$inet(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0) r1 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r1, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000840)=@newqdisc={0xac, 0x24, 0xf0b, 0x70bd2b, 0x0, {0x0, 0x0, 0x12, 0x0, {}, {0xffff, 0xffff}, {0x2, 0x9}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1], 0x0, [0x5, 0x4, 0x2, 0x0, 0x1, 0x0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3], [0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x8001]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xfd}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0xfffffff3}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8, 0x5, 0x7}]}}]}, 0xac}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-socket$netlink-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$inet(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bond0\x00'}) r1 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r1, 0x0, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-socket$netlink-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$inet(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bond0\x00'}) r1 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r1, &(0x7f00000007c0)={0x0, 0x0, 0x0}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-socket$netlink-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$inet(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bond0\x00'}) r1 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r1, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={0x0}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-socket$netlink-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$inet(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bond0\x00', 0x0}) r2 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000840)=@newqdisc={0x34, 0x24, 0xf0b, 0x70bd2b, 0x0, {0x0, 0x0, 0x12, r1, {}, {0xffff, 0xffff}, {0x2, 0x9}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x4}}]}, 0x34}}, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-socket$netlink-sendmsg$nl_route_sched program crashed: INFO: rcu detected stall in inet6_rtm_newaddr a never seen crash title: INFO: rcu detected stall in inet6_rtm_newaddr, ignore simplifying guilty program options testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-socket$netlink-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$inet(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bond0\x00', 0x0}) r2 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000840)=@newqdisc={0xac, 0x24, 0xf0b, 0x70bd2b, 0x0, {0x0, 0x0, 0x12, r1, {}, {0xffff, 0xffff}, {0x2, 0x9}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1], 0x0, [0x5, 0x4, 0x2, 0x0, 0x1, 0x0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3], [0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x8001]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xfd}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0xfffffff3}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8, 0x5, 0x7}]}}]}, 0xac}}, 0x0) program crashed: INFO: rcu detected stall in do_idle a never seen crash title: INFO: rcu detected stall in do_idle, ignore testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet-ioctl$sock_SIOCGIFINDEX-socket$netlink-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$inet(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000300)={'bond0\x00', 0x0}) r2 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f00000007c0)={0x0, 0x0, &(0x7f0000000780)={&(0x7f0000000840)=@newqdisc={0xac, 0x24, 0xf0b, 0x70bd2b, 0x0, {0x0, 0x0, 0x12, r1, {}, {0xffff, 0xffff}, {0x2, 0x9}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x7c, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x2, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1], 0x0, [0x5, 0x4, 0x2, 0x0, 0x1, 0x0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3], [0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x8001]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x18, 0x2, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xfd}, @TCA_TAPRIO_SCHED_ENTRY_GATE_MASK={0x8, 0x3, 0xfffffff3}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8, 0x5, 0x7}]}}]}, 0xac}}, 0x0) program crashed: INFO: rcu detected stall in do_idle a never seen crash title: INFO: rcu detected stall in do_idle, ignore reproducing took 1h19m43.243346112s repro crashed as (corrupted=false): rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...!: (2 ticks this GP) idle=caec/1/0x4000000000000000 softirq=19211/19211 fqs=0 rcu: (detected by 1, t=10502 jiffies, g=13221, q=609 ncpus=2) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5945 Comm: syz-executor Not tainted 6.16.0-rc2-next-20250618-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:check_wait_context kernel/locking/lockdep.c:4880 [inline] RIP: 0010:__lock_acquire+0x4d3/0xd20 kernel/locking/lockdep.c:5190 Code: c0 0a 00 00 00 0f 84 d7 04 00 00 44 3b bf e8 0a 00 00 0f 8d 04 01 00 00 49 63 df 48 8d 04 9b 4c 8d 3c c7 49 81 c7 10 0b 00 00 1d 44 89 e0 48 ff c3 48 63 8f e8 0a 00 00 49 83 c7 28 41 89 c4 RSP: 0018:ffffc90000007ad0 EFLAGS: 00000082 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000ffffffff RDX: 0000000000000002 RSI: 0000000000004000 RDI: ffff888034139e00 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff84c9ed1a R10: ffffc90000007cb0 R11: fffff52000000f98 R12: ffffffffffffff02 R13: 0000000000000002 R14: ffff88803413a918 R15: ffff88803413a910 FS: 00005555855dd500(0000) GS:ffff888125c3d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005649db68d008 CR3: 0000000024eb2000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5871 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xa7/0xf0 kernel/locking/spinlock.c:162 debug_object_deactivate+0x9a/0x250 lib/debugobjects.c:873 debug_hrtimer_deactivate kernel/time/hrtimer.c:450 [inline] debug_deactivate+0x1d/0x200 kernel/time/hrtimer.c:490 __run_hrtimer kernel/time/hrtimer.c:1729 [inline] __hrtimer_run_queues+0x2b0/0xc60 kernel/time/hrtimer.c:1825 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1887 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline] __sysvec_apic_timer_interrupt+0x10b/0x410 arch/x86/kernel/apic/apic.c:1056 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sock_sendmsg+0x54/0x270 net/socket.c:727 Code: 03 43 80 3c 2f 00 74 08 48 89 df e8 16 4a de f8 41 8b 56 28 4c 89 e7 4c 89 f6 e8 07 80 30 fb 89 c5 31 ff 89 c6 e8 ec 21 7a f8 <85> ed 74 0a e8 a3 1d 7a f8 e9 a7 00 00 00 4c 89 24 24 49 83 c4 20 RSP: 0018:ffffc900040cfc80 EFLAGS: 00000293 RAX: ffffffff89463994 RBX: ffffc900040cfdc8 RCX: 0000000000000000 RDX: ffff888034139e00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88807cd98000 R09: 0000000000000003 R10: 000000000000000a R11: 0000000000000000 R12: ffff888055cda400 R13: dffffc0000000000 R14: ffffc900040cfda0 R15: 1ffff92000819fb9 __sys_sendto+0x3bd/0x520 net/socket.c:2226 __do_sys_sendto net/socket.c:2233 [inline] __se_sys_sendto net/socket.c:2229 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2229 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7e099907bc Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b RSP: 002b:00007ffffb5a28c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f7e0a6e4620 RCX: 00007f7e099907bc RDX: 0000000000000028 RSI: 00007f7e0a6e4670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffffb5a2914 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f7e0a6e4670 R15: 0000000000000000 rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g13221 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 rcu: Possible timer handling issue on cpu=0 timer-softirq=6128 rcu: rcu_preempt kthread starved for 10502 jiffies! g13221 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 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:I stack:27128 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5313 [inline] __schedule+0x16f5/0x4d00 kernel/sched/core.c:6696 __schedule_loop kernel/sched/core.c:6774 [inline] schedule+0x165/0x360 kernel/sched/core.c:6789 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2060 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2262 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 final repro crashed as (corrupted=false): rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...!: (2 ticks this GP) idle=caec/1/0x4000000000000000 softirq=19211/19211 fqs=0 rcu: (detected by 1, t=10502 jiffies, g=13221, q=609 ncpus=2) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5945 Comm: syz-executor Not tainted 6.16.0-rc2-next-20250618-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:check_wait_context kernel/locking/lockdep.c:4880 [inline] RIP: 0010:__lock_acquire+0x4d3/0xd20 kernel/locking/lockdep.c:5190 Code: c0 0a 00 00 00 0f 84 d7 04 00 00 44 3b bf e8 0a 00 00 0f 8d 04 01 00 00 49 63 df 48 8d 04 9b 4c 8d 3c c7 49 81 c7 10 0b 00 00 1d 44 89 e0 48 ff c3 48 63 8f e8 0a 00 00 49 83 c7 28 41 89 c4 RSP: 0018:ffffc90000007ad0 EFLAGS: 00000082 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000ffffffff RDX: 0000000000000002 RSI: 0000000000004000 RDI: ffff888034139e00 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff84c9ed1a R10: ffffc90000007cb0 R11: fffff52000000f98 R12: ffffffffffffff02 R13: 0000000000000002 R14: ffff88803413a918 R15: ffff88803413a910 FS: 00005555855dd500(0000) GS:ffff888125c3d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005649db68d008 CR3: 0000000024eb2000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5871 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xa7/0xf0 kernel/locking/spinlock.c:162 debug_object_deactivate+0x9a/0x250 lib/debugobjects.c:873 debug_hrtimer_deactivate kernel/time/hrtimer.c:450 [inline] debug_deactivate+0x1d/0x200 kernel/time/hrtimer.c:490 __run_hrtimer kernel/time/hrtimer.c:1729 [inline] __hrtimer_run_queues+0x2b0/0xc60 kernel/time/hrtimer.c:1825 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1887 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline] __sysvec_apic_timer_interrupt+0x10b/0x410 arch/x86/kernel/apic/apic.c:1056 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sock_sendmsg+0x54/0x270 net/socket.c:727 Code: 03 43 80 3c 2f 00 74 08 48 89 df e8 16 4a de f8 41 8b 56 28 4c 89 e7 4c 89 f6 e8 07 80 30 fb 89 c5 31 ff 89 c6 e8 ec 21 7a f8 <85> ed 74 0a e8 a3 1d 7a f8 e9 a7 00 00 00 4c 89 24 24 49 83 c4 20 RSP: 0018:ffffc900040cfc80 EFLAGS: 00000293 RAX: ffffffff89463994 RBX: ffffc900040cfdc8 RCX: 0000000000000000 RDX: ffff888034139e00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88807cd98000 R09: 0000000000000003 R10: 000000000000000a R11: 0000000000000000 R12: ffff888055cda400 R13: dffffc0000000000 R14: ffffc900040cfda0 R15: 1ffff92000819fb9 __sys_sendto+0x3bd/0x520 net/socket.c:2226 __do_sys_sendto net/socket.c:2233 [inline] __se_sys_sendto net/socket.c:2229 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2229 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7e099907bc Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b RSP: 002b:00007ffffb5a28c0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f7e0a6e4620 RCX: 00007f7e099907bc RDX: 0000000000000028 RSI: 00007f7e0a6e4670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffffb5a2914 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f7e0a6e4670 R15: 0000000000000000 rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g13221 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 rcu: Possible timer handling issue on cpu=0 timer-softirq=6128 rcu: rcu_preempt kthread starved for 10502 jiffies! g13221 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 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:I stack:27128 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5313 [inline] __schedule+0x16f5/0x4d00 kernel/sched/core.c:6696 __schedule_loop kernel/sched/core.c:6774 [inline] schedule+0x165/0x360 kernel/sched/core.c:6789 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2060 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2262 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245