Extracting prog: 1h5m50.943676326s Minimizing prog: 48m23.974987878s Simplifying prog options: 0s Extracting C: 1m46.799384306s Simplifying C: 1h2m2.770819044s 24 programs, timeouts [6m0s] extracting reproducer from 24 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$igmp-setsockopt$MRT_FLUSH-setsockopt$MRT_ADD_VIF detailed listing: executing program 0: r0 = socket$igmp(0x2, 0x3, 0x2) setsockopt$MRT_FLUSH(r0, 0x0, 0xd1, &(0x7f0000000000)=0x3, 0x4) setsockopt$MRT_ADD_VIF(r0, 0x0, 0xca, 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-connect$inet6-read$alg detailed listing: executing program 0: r0 = socket(0x2b, 0x80801, 0x1) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @empty}, 0x1c) read$alg(r0, &(0x7f0000000400)=""/8, 0x8) 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$nl_generic-syz_genetlink_get_family_id$ethtool-sendmsg$ETHTOOL_MSG_LINKINFO_SET detailed listing: executing program 0: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000680), 0xffffffffffffffff) sendmsg$ETHTOOL_MSG_LINKINFO_SET(r0, &(0x7f0000000780)={0x0, 0x0, &(0x7f0000000740)={&(0x7f0000000340)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000500020000000000180001801400020073797a5f74756e000000f4000000000005000300"], 0x3c}}, 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}}): openat$ppp-ioctl$PPPIOCNEWUNIT-pwritev detailed listing: executing program 0: r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000), 0x40082, 0x0) ioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f0000000140)) pwritev(r0, &(0x7f0000000040)=[{&(0x7f0000000180)="80fd02000040", 0x42}], 0x2, 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}}): set_mempolicy-syz_open_dev$vim2m-ioctl$vim2m_VIDIOC_REQBUFS detailed listing: executing program 0: set_mempolicy(0x8006, &(0x7f0000000040)=0xfff, 0x5) r0 = syz_open_dev$vim2m(&(0x7f00000001c0), 0x0, 0x2) ioctl$vim2m_VIDIOC_REQBUFS(r0, 0xc0145608, &(0x7f0000000040)={0x8, 0x1, 0x1}) program did not crash single: failed to extract reproducer bisect: bisecting 24 programs with base timeout 6m0s testing program (duration=6m6s, {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}}): [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3] detailed listing: executing program 2: bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000080)={&(0x7f0000000040)='netlink_extack\x00'}, 0x10) r0 = syz_open_dev$radio(&(0x7f0000000000), 0xffffffffffffffff, 0x2) ioctl$VIDIOC_S_EXT_CTRLS(r0, 0xc0205648, &(0x7f0000000100)={0x0, 0x1, 0x0, 0xffffffffffffffff, 0x0, &(0x7f00000000c0)={0x98f90d, 0x9, '\x00', @p_u8=&(0x7f0000000040)}}) executing program 2: r0 = openat$rtc(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$RTC_SET_TIME(r0, 0x4024700a, &(0x7f0000000580)={0x3, 0x14, 0x0, 0x200017, 0x0, 0xa9}) syz_genetlink_get_family_id$mptcp(0x0, 0xffffffffffffffff) executing program 2: syz_usb_connect(0x0, 0x2d, &(0x7f0000000200)=ANY=[@ANYBLOB="12010000d5e9bd40eb030200c0ba050000010902115c01000000000904000001b504b100090581"], 0x0) r0 = syz_open_dev$evdev(&(0x7f00000000c0), 0x4, 0x60001) ioctl$EVIOCSKEYCODE_V2(r0, 0x40284504, &(0x7f0000000180)={0x0, 0x8, 0x0, 0x5, "2a000000000000005a957fe0213b2e100af028f0030b2eff0b61e6e66b8f37ff"}) executing program 0: mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xc, 0x4008031, 0xffffffffffffffff, 0x0) mremap(&(0x7f0000a96000/0x1000)=nil, 0x1000, 0x800000, 0x3, &(0x7f0000130000/0x800000)=nil) mremap(&(0x7f0000241000/0x2000)=nil, 0x2000, 0x400000, 0x3, &(0x7f000082a000/0x400000)=nil) executing program 1: r0 = openat$kvm(0x0, &(0x7f0000000080), 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) ioctl$KVM_SET_DEVICE_ATTR_vm(r1, 0x4018aee1, 0x0) executing program 1: mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb, 0x4008032, 0xffffffffffffffff, 0x0) madvise(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x15) mbind(&(0x7f0000001000/0x800000)=nil, 0x800000, 0x0, 0x0, 0x0, 0x2) executing program 0: r0 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$MAP_CREATE_RINGBUF(0x0, &(0x7f00000007c0)={0x1b, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, '\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x1c, &(0x7f0000000d80)=@ringbuf={{0x18, 0x8}, {{0x18, 0x1, 0x1, 0x0, r1}, {}, {}, {0x85, 0x0, 0x0, 0x5}, {0x4, 0x1, 0xb, 0x9, 0xa}}, {{0x5, 0x0, 0x3}}, [@snprintf={{0x5, 0x0, 0x7, 0x9, 0x0, 0x2, 0x2}, {0x3, 0x3, 0x3, 0xa, 0x9, 0xfe00}, {0x5, 0x0, 0xb, 0x9}, {0x3, 0x0, 0x6, 0xa, 0x9, 0xfe04, 0xe1}, {0x7, 0x1, 0xb, 0x7, 0x8}, {0x7, 0x0, 0x0, 0x8}, {}, {}, {}, {0x18, 0x9, 0x2, 0x0, r0}, {}, {0x46, 0x8, 0xfff0, 0x76}}], {{0x7, 0x1, 0xb, 0x8}, {0x6, 0x0, 0x5, 0x8}, {0x85, 0x0, 0x0, 0x7}}}, &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) executing program 4: r0 = openat$vhost_vsock(0xffffffffffffff9c, &(0x7f00000015c0), 0x2, 0x0) ioctl$VHOST_SET_VRING_BASE(r0, 0xaf01, 0x0) ioctl$VHOST_SET_VRING_KICK(r0, 0x4008af20, &(0x7f0000000cc0)={0x1}) executing program 3: mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x3, 0x200000005c832, 0xffffffffffffffff, 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000000)='numa_maps\x00') pread64(r0, &(0x7f0000002a40)=""/208, 0xd0, 0x0) executing program 4: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0xe, 0x4, 0x8, 0x8, 0x0, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x6, 0x14, &(0x7f0000000300)=@framed={{0x18, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, [@printk={@lu, {}, {}, {}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x7fffffff}}, @ringbuf_output={{0x18, 0x1, 0x1, 0x0, r0}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x400000}, {}, {0x4}, {0x6, 0x0, 0xa}, {}, {}, {0x85, 0x0, 0x0, 0x33}}]}, &(0x7f0000000180)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @xdp, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$PROG_BIND_MAP(0xa, &(0x7f0000000500)={r1}, 0xc) executing program 3: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000400), 0xffffffffffffffff) sendmsg$TIPC_NL_KEY_SET(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000340)={0x38, r1, 0x1, 0x0, 0x0, {0x3}, [@TIPC_NLA_BEARER={0x24, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_PROP={0xc, 0x2, 0x0, 0x1, [@TIPC_NLA_PROP_WIN={0x8, 0x3, 0x62}]}, @TIPC_NLA_BEARER_NAME={0x13, 0x1, @l2={'eth', 0x3a, 'veth0_vlan\x00'}}]}]}, 0x38}}, 0x0) executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_buf(r0, 0x0, 0x10, &(0x7f0000000080)="170000000200020000ffbe8c5ee17688a2003c000303000afdff02a257fc5ad90200bb6a880000d6c9db0000db00000200df01800a0000ebfc0607bdff59100ac45761547a681f009cee4a5acba400001fb700674f00c88ebbf9315033bf79ac2dfc061f15003901dee2ffffffffe9000000000000000062068f5ee50ce5af9b1c568302ffff02ff0331dd3bab0840024f0298e9e90539062a80e605007f71174ab498a30b3e5a1b47b63a6323ded2aa084cd36276a3afff", 0xb8) sendto$inet(r0, 0x0, 0x0, 0x20028090, &(0x7f0000000040)={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x37}}, 0x10) executing program 3: r0 = openat$ppp(0xffffffffffffff9c, &(0x7f00000003c0), 0x0, 0x0) ioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f0000000000)) ioctl$PPPIOCSMRU1(r0, 0x40047452, 0x0) executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ieee802154(&(0x7f0000000840), r0) sendmsg$IEEE802154_LLSEC_SETPARAMS(r0, &(0x7f0000000980)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000008c0)={0x30, r1, 0x1, 0x70bd25, 0x25dfdbfe, {}, [@IEEE802154_ATTR_LLSEC_KEY_ID={0x5, 0x2e, 0x5}, @IEEE802154_ATTR_DEV_NAME={0xa, 0x1, 'wpan0\x00'}, @IEEE802154_ATTR_LLSEC_KEY_MODE={0x5, 0x2b, 0x3}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000000}, 0x4) executing program 4: set_mempolicy(0x8006, &(0x7f0000000040)=0xfff, 0x5) r0 = syz_open_dev$vim2m(&(0x7f00000001c0), 0x0, 0x2) ioctl$vim2m_VIDIOC_REQBUFS(r0, 0xc0145608, &(0x7f0000000040)={0x8, 0x1, 0x1}) executing program 0: r0 = syz_io_uring_setup(0x1f87, &(0x7f0000000080)={0x0, 0x0, 0x13780}, &(0x7f0000000100)=0x0, &(0x7f0000000280)=0x0) syz_io_uring_submit(r1, r2, &(0x7f0000000040)=@IORING_OP_LINK_TIMEOUT={0xf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x3}) io_uring_enter(r0, 0x6b4d, 0x0, 0x0, 0x0, 0x0) executing program 2: r0 = syz_open_dev$sg(&(0x7f00000060c0), 0x0, 0x8002) ioctl$SCSI_IOCTL_SEND_COMMAND(r0, 0x1, &(0x7f0000000400)={0x0, 0x0, 0x8}) msync(&(0x7f0000952000/0x2000)=nil, 0x87abbe8d1cc6ad9, 0x6) executing program 3: unshare(0x4040600) r0 = syz_init_net_socket$rose(0xb, 0x5, 0x0) bind$rose(r0, 0x0, 0x0) executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a010300000000000000000100fffd0900010073797a300000000040000000030a01020000000000000000010000000900030073797a3200000000140004800800024032658aeb08000140000000010900010073797a300000000044000000060a010400000000000001040100000008000b40000000000900010073797a30000000001c000480180001800d00010073796e70726f7879000000000400028014000000110001"], 0xcc}}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) executing program 3: r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000), 0x40082, 0x0) ioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f0000000140)) pwritev(r0, &(0x7f0000000040)=[{&(0x7f0000000180)="80fd02000040", 0x42}], 0x2, 0x0, 0x0) executing program 1: prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]}) r0 = mq_open(&(0x7f00005a1ffb)='eth0\x00', 0x42, 0x0, 0x0) mq_getsetattr(r0, 0x0, 0x0) executing program 2: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000680), 0xffffffffffffffff) sendmsg$ETHTOOL_MSG_LINKINFO_SET(r0, &(0x7f0000000780)={0x0, 0x0, &(0x7f0000000740)={&(0x7f0000000340)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000500020000000000180001801400020073797a5f74756e000000f4000000000005000300"], 0x3c}}, 0x0) executing program 0: r0 = socket(0x2b, 0x80801, 0x1) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @empty}, 0x1c) read$alg(r0, &(0x7f0000000400)=""/8, 0x8) executing program 1: r0 = socket$igmp(0x2, 0x3, 0x2) setsockopt$MRT_FLUSH(r0, 0x0, 0xd1, &(0x7f0000000000)=0x3, 0x4) setsockopt$MRT_ADD_VIF(r0, 0x0, 0xca, 0x0, 0x0) program crashed: INFO: task hung in addrconf_dad_work bisect: bisecting 24 programs bisect: split chunks (needed=false): <24> bisect: split chunk #0 of len 24 into 3 parts bisect: testing without sub-chunk 1/3 testing program (duration=6m4s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3] detailed listing: executing program 3: mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x3, 0x200000005c832, 0xffffffffffffffff, 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000000)='numa_maps\x00') pread64(r0, &(0x7f0000002a40)=""/208, 0xd0, 0x0) executing program 4: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000000)=@base={0xe, 0x4, 0x8, 0x8, 0x0, 0xffffffffffffffff, 0x0, '\x00', 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, @void, @value, @void, @value}, 0x48) r1 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x6, 0x14, &(0x7f0000000300)=@framed={{0x18, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, [@printk={@lu, {}, {}, {}, {}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0x7fffffff}}, @ringbuf_output={{0x18, 0x1, 0x1, 0x0, r0}, {0x7, 0x0, 0xb, 0x8, 0x0, 0x0, 0x400000}, {}, {0x4}, {0x6, 0x0, 0xa}, {}, {}, {0x85, 0x0, 0x0, 0x33}}]}, &(0x7f0000000180)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @xdp, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @void, @value}, 0x90) bpf$PROG_BIND_MAP(0xa, &(0x7f0000000500)={r1}, 0xc) executing program 3: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000400), 0xffffffffffffffff) sendmsg$TIPC_NL_KEY_SET(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000340)={0x38, r1, 0x1, 0x0, 0x0, {0x3}, [@TIPC_NLA_BEARER={0x24, 0x1, 0x0, 0x1, [@TIPC_NLA_BEARER_PROP={0xc, 0x2, 0x0, 0x1, [@TIPC_NLA_PROP_WIN={0x8, 0x3, 0x62}]}, @TIPC_NLA_BEARER_NAME={0x13, 0x1, @l2={'eth', 0x3a, 'veth0_vlan\x00'}}]}]}, 0x38}}, 0x0) executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_buf(r0, 0x0, 0x10, &(0x7f0000000080)="170000000200020000ffbe8c5ee17688a2003c000303000afdff02a257fc5ad90200bb6a880000d6c9db0000db00000200df01800a0000ebfc0607bdff59100ac45761547a681f009cee4a5acba400001fb700674f00c88ebbf9315033bf79ac2dfc061f15003901dee2ffffffffe9000000000000000062068f5ee50ce5af9b1c568302ffff02ff0331dd3bab0840024f0298e9e90539062a80e605007f71174ab498a30b3e5a1b47b63a6323ded2aa084cd36276a3afff", 0xb8) sendto$inet(r0, 0x0, 0x0, 0x20028090, &(0x7f0000000040)={0x2, 0x0, @dev={0xac, 0x14, 0x14, 0x37}}, 0x10) executing program 3: r0 = openat$ppp(0xffffffffffffff9c, &(0x7f00000003c0), 0x0, 0x0) ioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f0000000000)) ioctl$PPPIOCSMRU1(r0, 0x40047452, 0x0) executing program 4: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ieee802154(&(0x7f0000000840), r0) sendmsg$IEEE802154_LLSEC_SETPARAMS(r0, &(0x7f0000000980)={0x0, 0x0, &(0x7f0000000940)={&(0x7f00000008c0)={0x30, r1, 0x1, 0x70bd25, 0x25dfdbfe, {}, [@IEEE802154_ATTR_LLSEC_KEY_ID={0x5, 0x2e, 0x5}, @IEEE802154_ATTR_DEV_NAME={0xa, 0x1, 'wpan0\x00'}, @IEEE802154_ATTR_LLSEC_KEY_MODE={0x5, 0x2b, 0x3}]}, 0x30}, 0x1, 0x0, 0x0, 0x4000000}, 0x4) executing program 4: set_mempolicy(0x8006, &(0x7f0000000040)=0xfff, 0x5) r0 = syz_open_dev$vim2m(&(0x7f00000001c0), 0x0, 0x2) ioctl$vim2m_VIDIOC_REQBUFS(r0, 0xc0145608, &(0x7f0000000040)={0x8, 0x1, 0x1}) executing program 0: r0 = syz_io_uring_setup(0x1f87, &(0x7f0000000080)={0x0, 0x0, 0x13780}, &(0x7f0000000100)=0x0, &(0x7f0000000280)=0x0) syz_io_uring_submit(r1, r2, &(0x7f0000000040)=@IORING_OP_LINK_TIMEOUT={0xf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x3}) io_uring_enter(r0, 0x6b4d, 0x0, 0x0, 0x0, 0x0) executing program 2: r0 = syz_open_dev$sg(&(0x7f00000060c0), 0x0, 0x8002) ioctl$SCSI_IOCTL_SEND_COMMAND(r0, 0x1, &(0x7f0000000400)={0x0, 0x0, 0x8}) msync(&(0x7f0000952000/0x2000)=nil, 0x87abbe8d1cc6ad9, 0x6) executing program 3: unshare(0x4040600) r0 = syz_init_net_socket$rose(0xb, 0x5, 0x0) bind$rose(r0, 0x0, 0x0) executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a010300000000000000000100fffd0900010073797a300000000040000000030a01020000000000000000010000000900030073797a3200000000140004800800024032658aeb08000140000000010900010073797a300000000044000000060a010400000000000001040100000008000b40000000000900010073797a30000000001c000480180001800d00010073796e70726f7879000000000400028014000000110001"], 0xcc}}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) executing program 3: r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000), 0x40082, 0x0) ioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f0000000140)) pwritev(r0, &(0x7f0000000040)=[{&(0x7f0000000180)="80fd02000040", 0x42}], 0x2, 0x0, 0x0) executing program 1: prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]}) r0 = mq_open(&(0x7f00005a1ffb)='eth0\x00', 0x42, 0x0, 0x0) mq_getsetattr(r0, 0x0, 0x0) executing program 2: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000680), 0xffffffffffffffff) sendmsg$ETHTOOL_MSG_LINKINFO_SET(r0, &(0x7f0000000780)={0x0, 0x0, &(0x7f0000000740)={&(0x7f0000000340)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000500020000000000180001801400020073797a5f74756e000000f4000000000005000300"], 0x3c}}, 0x0) executing program 0: r0 = socket(0x2b, 0x80801, 0x1) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @empty}, 0x1c) read$alg(r0, &(0x7f0000000400)=""/8, 0x8) executing program 1: r0 = socket$igmp(0x2, 0x3, 0x2) setsockopt$MRT_FLUSH(r0, 0x0, 0xd1, &(0x7f0000000000)=0x3, 0x4) setsockopt$MRT_ADD_VIF(r0, 0x0, 0xca, 0x0, 0x0) program crashed: INFO: rcu detected stall in corrupted bisect: the chunk can be dropped bisect: testing without sub-chunk 2/3 testing program (duration=6m2s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [3, 3, 3, 3, 3, 3, 3, 3] detailed listing: executing program 2: r0 = syz_open_dev$sg(&(0x7f00000060c0), 0x0, 0x8002) ioctl$SCSI_IOCTL_SEND_COMMAND(r0, 0x1, &(0x7f0000000400)={0x0, 0x0, 0x8}) msync(&(0x7f0000952000/0x2000)=nil, 0x87abbe8d1cc6ad9, 0x6) executing program 3: unshare(0x4040600) r0 = syz_init_net_socket$rose(0xb, 0x5, 0x0) bind$rose(r0, 0x0, 0x0) executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a010300000000000000000100fffd0900010073797a300000000040000000030a01020000000000000000010000000900030073797a3200000000140004800800024032658aeb08000140000000010900010073797a300000000044000000060a010400000000000001040100000008000b40000000000900010073797a30000000001c000480180001800d00010073796e70726f7879000000000400028014000000110001"], 0xcc}}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) executing program 3: r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000), 0x40082, 0x0) ioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f0000000140)) pwritev(r0, &(0x7f0000000040)=[{&(0x7f0000000180)="80fd02000040", 0x42}], 0x2, 0x0, 0x0) executing program 1: prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]}) r0 = mq_open(&(0x7f00005a1ffb)='eth0\x00', 0x42, 0x0, 0x0) mq_getsetattr(r0, 0x0, 0x0) executing program 2: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000680), 0xffffffffffffffff) sendmsg$ETHTOOL_MSG_LINKINFO_SET(r0, &(0x7f0000000780)={0x0, 0x0, &(0x7f0000000740)={&(0x7f0000000340)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000500020000000000180001801400020073797a5f74756e000000f4000000000005000300"], 0x3c}}, 0x0) executing program 0: r0 = socket(0x2b, 0x80801, 0x1) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @empty}, 0x1c) read$alg(r0, &(0x7f0000000400)=""/8, 0x8) executing program 1: r0 = socket$igmp(0x2, 0x3, 0x2) setsockopt$MRT_FLUSH(r0, 0x0, 0xd1, &(0x7f0000000000)=0x3, 0x4) setsockopt$MRT_ADD_VIF(r0, 0x0, 0xca, 0x0, 0x0) program crashed: INFO: task hung in addrconf_dad_work bisect: the chunk can be dropped bisect: testing without sub-chunk 3/3 bisect: split chunks (needed=true): <8> bisect: split chunk #0 of len 8 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=6m1s, {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}}): [3, 3, 3, 3] detailed listing: executing program 1: prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]}) r0 = mq_open(&(0x7f00005a1ffb)='eth0\x00', 0x42, 0x0, 0x0) mq_getsetattr(r0, 0x0, 0x0) executing program 2: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ethtool(&(0x7f0000000680), 0xffffffffffffffff) sendmsg$ETHTOOL_MSG_LINKINFO_SET(r0, &(0x7f0000000780)={0x0, 0x0, &(0x7f0000000740)={&(0x7f0000000340)=ANY=[@ANYBLOB='<\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01000000000000000000030000000500020000000000180001801400020073797a5f74756e000000f4000000000005000300"], 0x3c}}, 0x0) executing program 0: r0 = socket(0x2b, 0x80801, 0x1) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @empty}, 0x1c) read$alg(r0, &(0x7f0000000400)=""/8, 0x8) executing program 1: r0 = socket$igmp(0x2, 0x3, 0x2) setsockopt$MRT_FLUSH(r0, 0x0, 0xd1, &(0x7f0000000000)=0x3, 0x4) setsockopt$MRT_ADD_VIF(r0, 0x0, 0xca, 0x0, 0x0) program did not crash bisect: testing without sub-chunk 2/2 testing program (duration=6m1s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [3, 3, 3, 3] detailed listing: executing program 2: r0 = syz_open_dev$sg(&(0x7f00000060c0), 0x0, 0x8002) ioctl$SCSI_IOCTL_SEND_COMMAND(r0, 0x1, &(0x7f0000000400)={0x0, 0x0, 0x8}) msync(&(0x7f0000952000/0x2000)=nil, 0x87abbe8d1cc6ad9, 0x6) executing program 3: unshare(0x4040600) r0 = syz_init_net_socket$rose(0xb, 0x5, 0x0) bind$rose(r0, 0x0, 0x0) executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a010300000000000000000100fffd0900010073797a300000000040000000030a01020000000000000000010000000900030073797a3200000000140004800800024032658aeb08000140000000010900010073797a300000000044000000060a010400000000000001040100000008000b40000000000900010073797a30000000001c000480180001800d00010073796e70726f7879000000000400028014000000110001"], 0xcc}}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) executing program 3: r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000), 0x40082, 0x0) ioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f0000000140)) pwritev(r0, &(0x7f0000000040)=[{&(0x7f0000000180)="80fd02000040", 0x42}], 0x2, 0x0, 0x0) program crashed: INFO: rcu detected stall in corrupted bisect: the chunk can be dropped bisect: split chunks (needed=true): <4> bisect: split chunk #0 of len 4 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [3, 3] detailed listing: executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a010300000000000000000100fffd0900010073797a300000000040000000030a01020000000000000000010000000900030073797a3200000000140004800800024032658aeb08000140000000010900010073797a300000000044000000060a010400000000000001040100000008000b40000000000900010073797a30000000001c000480180001800d00010073796e70726f7879000000000400028014000000110001"], 0xcc}}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) executing program 3: r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000), 0x40082, 0x0) ioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f0000000140)) pwritev(r0, &(0x7f0000000040)=[{&(0x7f0000000180)="80fd02000040", 0x42}], 0x2, 0x0, 0x0) program crashed: INFO: rcu detected stall in corrupted bisect: the chunk can be dropped bisect: testing without sub-chunk 2/2 bisect: no need to test this chunk, it's definitely needed bisect: split chunks (needed=true): <2> bisect: split chunk #0 of len 2 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$ppp-ioctl$PPPIOCNEWUNIT-pwritev detailed listing: executing program 3: r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000), 0x40082, 0x0) ioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f0000000140)) pwritev(r0, &(0x7f0000000040)=[{&(0x7f0000000180)="80fd02000040", 0x42}], 0x2, 0x0, 0x0) program did not crash bisect: testing without sub-chunk 2/2 testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a010300000000000000000100fffd0900010073797a300000000040000000030a01020000000000000000010000000900030073797a3200000000140004800800024032658aeb08000140000000010900010073797a300000000044000000060a010400000000000001040100000008000b40000000000900010073797a30000000001c000480180001800d00010073796e70726f7879000000000400028014000000110001"], 0xcc}}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) program crashed: INFO: rcu detected stall in corrupted bisect: the chunk can be dropped bisect: split chunks (needed=true): <1> bisect: split chunk #0 of len 1 into 2 parts bisect: no way to further split the chunk bisect: 1 programs left: executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a010300000000000000000100fffd0900010073797a300000000040000000030a01020000000000000000010000000900030073797a3200000000140004800800024032658aeb08000140000000010900010073797a300000000044000000060a010400000000000001040100000008000b40000000000900010073797a30000000001c000480180001800d00010073796e70726f7879000000000400028014000000110001"], 0xcc}}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) bisect: trying to concatenate bisect: concatenate 1 entries testing program (duration=9m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a010300000000000000000100fffd0900010073797a300000000040000000030a01020000000000000000010000000900030073797a3200000000140004800800024032658aeb08000140000000010900010073797a300000000044000000060a010400000000000001040100000008000b40000000000900010073797a30000000001c000480180001800d00010073796e70726f7879000000000400028014000000110001"], 0xcc}}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) program crashed: INFO: rcu detected stall in worker_thread bisect: concatenation succeeded found reproducer with 3 syscalls minimizing guilty program testing program (duration=5m39.778780314s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH detailed listing: executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a010300000000000000000100fffd0900010073797a300000000040000000030a01020000000000000000010000000900030073797a3200000000140004800800024032658aeb08000140000000010900010073797a300000000044000000060a010400000000000001040100000008000b40000000000900010073797a30000000001c000480180001800d00010073796e70726f7879000000000400028014000000110001"], 0xcc}}, 0x0) program did not crash testing program (duration=5m39.778780314s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-syz_emit_ethernet detailed listing: executing program 0: socket$nl_netfilter(0x10, 0x3, 0xc) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) program did not crash testing program (duration=5m39.778780314s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sendmsg$NFT_BATCH-syz_emit_ethernet detailed listing: executing program 0: sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a010300000000000000000100fffd0900010073797a300000000040000000030a01020000000000000000010000000900030073797a3200000000140004800800024032658aeb08000140000000010900010073797a300000000044000000060a010400000000000001040100000008000b40000000000900010073797a30000000001c000480180001800d00010073796e70726f7879000000000400028014000000110001"], 0xcc}}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) program did not crash testing program (duration=5m39.778780314s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, 0x0, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) program did not crash testing program (duration=5m39.778780314s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, 0x0}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) program did not crash testing program (duration=5m39.778780314s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={0x0, 0xcc}}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) program did not crash testing program (duration=5m39.778780314s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB], 0xcc}}, 0x0) syz_emit_ethernet(0x42, &(0x7f0000000480)={@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}, @link_local, @void, {@ipv4={0x800, @tcp={{0x5, 0x4, 0x0, 0x0, 0x34, 0x0, 0x0, 0x0, 0x6, 0x0, @empty, @empty}, {{0x10, 0x4e26, 0x41424344, 0x41424344, 0x0, 0x0, 0x8, 0xc2, 0x1, 0x0, 0x0, {[@timestamp={0x8, 0xa, 0x8, 0xffffffff}]}}}}}}}, 0x0) program did not crash testing program (duration=5m39.778780314s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r0, &(0x7f00000000c0)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000200)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a20000000000a010300000000000000000100fffd0900010073797a300000000040000000030a01020000000000000000010000000900030073797a3200000000140004800800024032658aeb08000140000000010900010073797a300000000044000000060a010400000000000001040100000008000b40000000000900010073797a30000000001c000480180001800d00010073796e70726f7879000000000400028014000000110001"], 0xcc}}, 0x0) syz_emit_ethernet(0x0, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=5m39.778780314s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: INFO: rcu detected stall in corrupted simplifying C reproducer testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program did not crash testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program did not crash testing compiled C program (duration=5m39.778780314s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: INFO: rcu detected stall in corrupted reproducing took 2h58m4.488884011s repro crashed as (corrupted=true): rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: (detected by 0, t=10502 jiffies, g=7633, q=1760662 ncpus=2) rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294974142-4294963639), jiffies_till_next_fqs=1, root ->qsmask 0x0 rcu: rcu_preempt kthread starved for 10504 jiffies! g7633 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R running task stack:24912 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5322 [inline] __schedule+0x1843/0x4ae0 kernel/sched/core.c:6682 __schedule_loop kernel/sched/core.c:6759 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6774 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: Stack dump where RCU GP kthread last ran: CPU: 0 UID: 0 PID: 1850 Comm: kworker/0:2 Not tainted 6.12.0-rc2-syzkaller-00260-g9e4c6c1ad9a1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_long defense_work_handler RIP: 0010:memset_orig+0x72/0xb0 arch/x86/lib/memset_64.S:89 Code: 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d8 0f 1f 84 00 00 00 00 00 89 d1 83 e1 38 74 14 c1 e9 03 66 0f 1f 44 00 00 ff c9 <48> 89 07 48 8d 7f 08 75 f5 83 e2 07 74 0a ff ca 88 07 48 8d 7f 01 RSP: 0018:ffffc90000006a68 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc90000006b78 RCX: 0000000000000000 RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90000006b98 RBP: dffffc0000000000 R08: ffffc90000006b9f R09: 0000000000000000 R10: ffffc90000006b90 R11: fffff52000000d74 R12: ffffc90000008000 R13: ffffc90000006b40 R14: ffffffff898ca1db R15: ffffc90000006b90 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc364370488 CR3: 000000000e734000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unwind_next_frame+0xcfb/0x22d0 arch/x86/kernel/unwind_orc.c:592 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:247 [inline] slab_post_alloc_hook mm/slub.c:4085 [inline] slab_alloc_node mm/slub.c:4134 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4186 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1322 [inline] synproxy_send_client_synack+0x1ba/0xf30 net/netfilter/nf_synproxy_core.c:460 nft_synproxy_eval_v4+0x3ca/0x610 net/netfilter/nft_synproxy.c:59 nft_synproxy_do_eval+0x362/0xa60 net/netfilter/nft_synproxy.c:141 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline] nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288 nft_do_chain_inet+0x418/0x6b0 net/netfilter/nft_chain_filter.c:161 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:269 [inline] NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312 NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314 __netif_receive_skb_one_core net/core/dev.c:5666 [inline] __netif_receive_skb+0x2bf/0x650 net/core/dev.c:5779 process_backlog+0x662/0x15b0 net/core/dev.c:6111 __napi_poll+0xcb/0x490 net/core/dev.c:6775 napi_poll net/core/dev.c:6844 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:6966 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 do_softirq+0x11b/0x1e0 kernel/softirq.c:455 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382 local_bh_enable include/linux/bottom_half.h:33 [inline] update_defense_level+0x8ec/0xcf0 net/netfilter/ipvs/ip_vs_ctl.c:210 defense_work_handler+0x22/0xd0 net/netfilter/ipvs/ip_vs_ctl.c:235 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 report is corrupted, running repro again testing compiled C program (duration=5m39.778780314s, {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:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-syz_emit_ethernet program crashed: INFO: rcu detected stall in seq_read_iter final repro crashed as (corrupted=false): rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5242/1:b..l rcu: (detected by 0, t=10503 jiffies, g=7693, q=1717126 ncpus=2) task:udevd state:R running task stack:23632 pid:5242 tgid:5242 ppid:4675 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5322 [inline] __schedule+0x1843/0x4ae0 kernel/sched/core.c:6682 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7004 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:arch_stack_walk+0x139/0x150 arch/x86/kernel/stacktrace.c:30 Code: 90 84 c0 74 11 48 89 df e8 34 9e 09 00 83 bd 70 ff ff ff 00 75 d0 65 48 8b 04 25 28 00 00 00 48 3b 45 d0 75 13 48 83 c4 68 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 44 4e 85 0a 0f 1f 40 RSP: 0018:ffffc9000377f650 EFLAGS: 00000286 RAX: 1d18e14b92e1d000 RBX: ffffc9000377f6d0 RCX: ffffffff9179c000 RDX: ffffffff91947d00 RSI: ffffffff8c0adc40 RDI: ffffffff8c602720 RBP: ffffc9000377f670 R08: ffffffff901bc6af R09: 1ffffffff20378d5 R10: dffffc0000000000 R11: fffffbfff20378d6 R12: ffff8880741c3c00 R13: ffffffff8180a090 R14: ffffc9000377f6c0 R15: 0000000000000000 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 save_stack+0xfb/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x76/0x430 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1108 [inline] free_unref_page+0xcd0/0xf00 mm/page_alloc.c:2638 discard_slab mm/slub.c:2677 [inline] __put_partials+0xeb/0x130 mm/slub.c:3145 put_cpu_partial+0x17c/0x250 mm/slub.c:3220 __slab_free+0x2ea/0x3d0 mm/slub.c:4449 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x23/0xb0 mm/kasan/common.c:385 kasan_kmalloc include/linux/kasan.h:257 [inline] __do_kmalloc_node mm/slub.c:4264 [inline] __kmalloc_node_noprof+0x22a/0x440 mm/slub.c:4270 __kvmalloc_node_noprof+0x72/0x190 mm/util.c:658 seq_buf_alloc fs/seq_file.c:38 [inline] seq_read_iter+0x20c/0xd70 fs/seq_file.c:210 new_sync_read fs/read_write.c:488 [inline] vfs_read+0x9bb/0xbc0 fs/read_write.c:569 ksys_read+0x183/0x2b0 fs/read_write.c:712 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f550dd16b6a RSP: 002b:00007ffcb76d24a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00005632171f20f0 RCX: 00007f550dd16b6a RDX: 0000000000001000 RSI: 00005632172131c0 RDI: 0000000000000008 RBP: 00005632171f20f0 R08: 0000000000000008 R09: 0000000000080000 R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000003fff R14: 00007ffcb76d2988 R15: 000000000000000a rcu: rcu_preempt kthread starved for 10545 jiffies! g7693 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:25816 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5322 [inline] __schedule+0x1843/0x4ae0 kernel/sched/core.c:6682 __schedule_loop kernel/sched/core.c:6759 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6774 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.12.0-rc2-syzkaller-00260-g9e4c6c1ad9a1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__sanitizer_cov_trace_cmp4+0x0/0x90 kernel/kcov.c:287 Code: 10 48 89 74 0a 18 4c 89 44 0a 20 c3 cc cc cc cc 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 0f 1e fa 4c 8b 04 24 65 48 8b 14 25 80 d7 03 00 65 8b 05 b0 ee RSP: 0018:ffffc900001e7638 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000028000045 RCX: dffffc0000000000 RDX: ffff88801da88000 RSI: 0000000028000045 RDI: 0000000028000045 RBP: ffff888202716140 R08: ffffffff84eae69c R09: 1ffff11040346984 R10: dffffc0000000000 R11: ffffed1040346985 R12: 0000000000000014 R13: 0000000000000000 R14: ffff888202716154 R15: ffff888202716144 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdaa273ff8 CR3: 000000000e734000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_csum lib/checksum.c:77 [inline] ip_fast_csum+0x14a/0x2b0 lib/checksum.c:108 ip_rcv_core+0x415/0xd10 net/ipv4/ip_input.c:511 ip_rcv+0x4f/0x90 net/ipv4/ip_input.c:565 __netif_receive_skb_one_core net/core/dev.c:5666 [inline] __netif_receive_skb+0x2bf/0x650 net/core/dev.c:5779 process_backlog+0x662/0x15b0 net/core/dev.c:6111 __napi_poll+0xcb/0x490 net/core/dev.c:6775 napi_poll net/core/dev.c:6844 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:6966 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 run_ksoftirqd+0xca/0x130 kernel/softirq.c:927 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244