Extracting prog: 58m11.045060107s Minimizing prog: 21m42.14925079s Simplifying prog options: 0s Extracting C: 3m49.914894747s Simplifying C: 29m3.177954991s extracting reproducer from 52 programs testing a last program of every proc single: executing 12 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$vnet-ioctl$VHOST_SET_FEATURES-write$vhost_msg_v2-write$vhost_msg_v2-write$vhost_msg_v2-write$vhost_msg_v2 detailed listing: executing program 0: r0 = openat$vnet(0xffffffffffffff9c, &(0x7f0000000c00), 0x2, 0x0) ioctl$VHOST_SET_FEATURES(r0, 0x4008af00, &(0x7f0000000000)=0x200000000) write$vhost_msg_v2(r0, &(0x7f0000000280)={0x2, 0x0, {&(0x7f0000000740)=""/255, 0xff, 0x0, 0x2, 0x2}}, 0x48) write$vhost_msg_v2(r0, &(0x7f00000039c0)={0x2, 0x0, {&(0x7f0000000680)=""/184, 0xfffffefd, 0x0, 0x3, 0x2}}, 0x48) write$vhost_msg_v2(r0, &(0x7f00000004c0)={0x2, 0x0, {&(0x7f0000000400)=""/185, 0xb9, 0x0, 0x3, 0x2}}, 0x48) write$vhost_msg_v2(r0, &(0x7f0000000180)={0x2, 0x0, {&(0x7f0000000e40)=""/187, 0xbb, 0x0, 0x2, 0x3}}, 0x48) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$fuse-openat$sndtimer-ioctl$SNDRV_TIMER_IOCTL_SELECT-ioctl$SNDRV_TIMER_IOCTL_START-mremap-ioctl$SNDRV_TIMER_IOCTL_PAUSE-open-ioctl$FIDEDUPERANGE-ioctl$SNDRV_TIMER_IOCTL_CONTINUE-connect$inet-ioctl$sock_SIOCGIFINDEX-socket$nl_netfilter-socket$nl_netfilter-sendmsg$IPSET_CMD_CREATE-sendmsg$IPSET_CMD_ADD detailed listing: executing program 0: openat$fuse(0xffffffffffffff9c, &(0x7f0000000040), 0x2, 0x0) r0 = openat$sndtimer(0xffffffffffffff9c, &(0x7f0000000000), 0x0) ioctl$SNDRV_TIMER_IOCTL_SELECT(r0, 0x40345410, &(0x7f0000000400)={{0x1}}) ioctl$SNDRV_TIMER_IOCTL_START(r0, 0x54a0) mremap(&(0x7f000016c000/0x4000)=nil, 0x4000, 0x40000000, 0x0, &(0x7f000063c000/0x3000)=nil) ioctl$SNDRV_TIMER_IOCTL_PAUSE(r0, 0x54a3) r1 = open(&(0x7f0000000000)='.\x00', 0x0, 0x0) ioctl$FIDEDUPERANGE(r1, 0xc0189436, &(0x7f0000000100)={0x6}) ioctl$SNDRV_TIMER_IOCTL_CONTINUE(r0, 0x5422) connect$inet(0xffffffffffffffff, 0x0, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, 0x0) r2 = socket$nl_netfilter(0x10, 0x3, 0xc) socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPSET_CMD_CREATE(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f00000044c0)={&(0x7f0000000080)={0x54, 0x2, 0x6, 0x801, 0x0, 0x0, {}, [@IPSET_ATTR_DATA={0xc, 0x7, 0x0, 0x1, [@IPSET_ATTR_BUCKETSIZE={0x5, 0x15, 0x9}]}, @IPSET_ATTR_PROTOCOL={0x5, 0x1, 0x6}, @IPSET_ATTR_FAMILY={0x5, 0x5, 0xa}, @IPSET_ATTR_REVISION={0x5}, @IPSET_ATTR_SETNAME={0x9, 0x2, 'syz0\x00'}, @IPSET_ATTR_TYPENAME={0x10, 0x3, 'hash:ip,mac\x00'}]}, 0x54}}, 0x0) sendmsg$IPSET_CMD_ADD(r2, &(0x7f0000000280)={0x0, 0x224e, &(0x7f0000000240)={&(0x7f0000000080)=ANY=[@ANYBLOB="50000000090601020000ffff00000000020000000900020073797a31000000000500010007000000280007800c00018008000140ffffffff0500070084000000060004404e22000006000540"], 0x50}, 0x1, 0x0, 0x0, 0x10000082}, 0x80) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): execve-open-openat$fuse-mount$fuse-read$FUSE-write$FUSE_INIT-openat-dup2-fallocate detailed listing: executing program 0: execve(&(0x7f0000000200)='./file0\x00', 0x0, 0x0) open(&(0x7f0000000100)='./file0\x00', 0x80ff, 0x0) r0 = openat$fuse(0xffffffffffffff9c, &(0x7f00000001c0), 0x42, 0x0) mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', &(0x7f0000002100), 0x0, &(0x7f0000002140)=ANY=[@ANYBLOB='fd=', @ANYRESHEX=r0, @ANYBLOB=',rootmode=000000000100000,user_id=', @ANYRESDEC=0x0, @ANYBLOB=',group_id=', @ANYRESDEC=0x0]) read$FUSE(r0, &(0x7f0000006300)={0x2020, 0x0, 0x0}, 0x2020) write$FUSE_INIT(r0, &(0x7f0000000040)={0x50, 0x0, r1, {0x7, 0x1f, 0x0, 0x10408}}, 0x50) r2 = openat(0xffffffffffffff9c, &(0x7f000000c380)='./file0\x00', 0x80101, 0x0) r3 = dup2(r2, r0) fallocate(r3, 0x40, 0x8000000008, 0x10000) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-openat$kvm-ioctl$KVM_CREATE_VM-socket$netlink-getsockopt$sock_cred-sendmsg$netlink-ioctl$KVM_CREATE_VCPU-syz_kvm_setup_cpu$x86-socket$nl_generic-syz_genetlink_get_family_id$tipc2-sendmsg$TIPC_NL_BEARER_ENABLE-syz_kvm_setup_cpu$x86-ioctl$KVM_X86_SETUP_MCE-ioctl$KVM_RUN-syz_usb_connect-syz_usb_control_io$cdc_ncm-syz_init_net_socket$bt_hci-bind$bt_hci-socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-syz_usb_control_io-accept4$bt_l2cap-getsockopt$bt_l2cap_L2CAP_OPTIONS-syz_open_dev$char_usb-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_IRQCHIP-ioctl$EVIOCGMASK detailed listing: executing program 0: r0 = syz_usb_connect(0x5, 0x3f, &(0x7f00000000c0)=ANY=[@ANYBLOB="11010000733336088dee1edb23610000000109022d0101100000000904000003fe03010009cd8d1f0002000000090505020000fcffff09058b1e20"], 0x0) r1 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0) r2 = ioctl$KVM_CREATE_VM(r1, 0xae01, 0x0) r3 = socket$netlink(0x10, 0x3, 0x0) getsockopt$sock_cred(r3, 0x1, 0x11, &(0x7f00000001c0)={0x0, 0x0}, &(0x7f0000000080)=0xc) sendmsg$netlink(r3, &(0x7f0000001280)={0x0, 0x0, &(0x7f0000000c00)=[{&(0x7f0000000480)={0x17c, 0x2c, 0x1, 0x0, 0x25dfdbfe, "", [@typed={0x8, 0x0, 0x0, 0x0, @uid=r4}, @nested={0x163, 0x2, 0x0, 0x1, [@generic="976b6408686030", @nested={0x158, 0x30, 0x0, 0x1, [@generic="b1ab4a3777752eb72aadc7c89145e4d288a18464b10e48fbb4ab96f0c1ba4d2409297615d5e84f3c4224c54b624693d78a6d87c4272a662839fb3a0eef54e55cb44a83123efebbbdc8c402e429a18d7e9caaa8fccb2f728e6d84bb2771", @generic="d470eabb2129102c68bbc67aeaec8594501983da8b56f7318fce73a601eb874d807d58ae0bf06b40c78b53bc3b730ad3fcbf6fd898d1e7c00ec0b9fd5d594d03dcaf2925cfb143eccfca1990cce2d3e8a1580e690e8a3589e514f2569de085622fd1859ff4ce8ff0b6b8a5d991808d9b4096bdcd1727360bb8711dddf1f229760576359c69f274e92670abaaaa06dc0dc2db10510aa32c74635787086ea5664d92123152d8f4dc578a80a703e29ba67c4660b57dd68924dc44cb944efad67c60c702ba361cf5655f0f3185c0b14799d4efb34a2ba00f141147642298d863f54e5852dfbff0a288f435d731", @typed={0xc, 0x61, 0x0, 0x0, @u64}]}]}]}, 0x17c}], 0x1, 0x0, 0x0, 0x2000c000}, 0xcc000) r5 = ioctl$KVM_CREATE_VCPU(r2, 0xae41, 0x1) syz_kvm_setup_cpu$x86(r2, r5, &(0x7f0000fe6000/0x18000)=nil, &(0x7f0000000000)=[@text32={0x20, &(0x7f00000000c0)="d8df0f23b3b9ce000000b807000000ba000000000f301b8154fea900600000c4e28ddc8dcd000000c182fd3f0000c8b950020000b801000000b9a6080000b800000100ba000000000f300f300fc79d53bf00000f015b00012202", 0x5a}], 0x1, 0xc, 0x0, 0x0) r6 = socket$nl_generic(0x10, 0x3, 0x10) r7 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000040), 0xffffffffffffffff) sendmsg$TIPC_NL_BEARER_ENABLE(r6, &(0x7f0000000300)={0x0, 0x0, &(0x7f00000002c0)={&(0x7f0000000600)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r7, @ANYBLOB="0100000000000000000003000000580001800d0001007564703a73797a300000000044000400200001000a004e2400000044fe80000000000000000000000000002a37200000200002"], 0x6c}}, 0x0) syz_kvm_setup_cpu$x86(r2, r5, &(0x7f0000fe7000/0x18000)=nil, &(0x7f0000000900)=[@text16={0x10, 0x0}], 0x1, 0x1, 0x0, 0x0) ioctl$KVM_X86_SETUP_MCE(r5, 0x4008ae9c, &(0x7f0000000080)={0x4, 0x5, 0x7}) ioctl$KVM_RUN(r5, 0xae80, 0x0) r8 = syz_usb_connect(0x0, 0x0, 0x0, 0x0) syz_usb_control_io$cdc_ncm(r8, 0x0, 0x0) r9 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) bind$bt_hci(r9, &(0x7f0000000040)={0x1f, 0x4}, 0x6) r10 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$NFT_BATCH(r10, &(0x7f000000c2c0)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000008c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}}, 0x0) sendmsg$NFT_BATCH(r10, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000080)={{0x14, 0x10, 0x1, 0x0, 0x0, {0x4}}, [@NFT_MSG_NEWRULE={0x44, 0x6, 0xa, 0x40b, 0x0, 0x0, {0x2, 0x0, 0x1}, [@NFTA_RULE_EXPRESSIONS={0x18, 0x4, 0x0, 0x1, [{0x14, 0x1, 0x0, 0x1, @reject={{0xb}, @val={0x4}}}]}, @NFTA_RULE_TABLE={0x9, 0x1, 'syz0\x00'}, @NFTA_RULE_CHAIN={0x9, 0x2, 'syz2\x00'}]}], {0x14}}, 0x6c}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000780)={0x84, &(0x7f00000004c0)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r11 = accept4$bt_l2cap(0xffffffffffffffff, &(0x7f0000000380)={0x1f, 0x0, @none}, &(0x7f00000003c0)=0xe, 0x800) getsockopt$bt_l2cap_L2CAP_OPTIONS(r11, 0x6, 0x1, &(0x7f0000000400), &(0x7f0000000440)=0xc) r12 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) r13 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) r14 = ioctl$KVM_CREATE_VM(r13, 0xae01, 0x0) ioctl$KVM_SET_IRQCHIP(r14, 0x4048aec9, &(0x7f0000000140)={0x6, 0x0, @ioapic={0x1000000, 0x4, 0x1, 0x0, 0x0, [{0x9, 0x0, 0x0, '\x00', 0xff}, {0xfd}, {0x0, 0x7}, {0x0, 0x0, 0x0, '\x00', 0xfd}, {}, {0x0, 0x0, 0xc6, '\x00', 0x1}, {0x0, 0x0, 0x0, '\x00', 0x2}, {0x1, 0x2, 0x0, '\x00', 0x80}, {0x0, 0x0, 0x0, '\x00', 0x4}, {0x9}, {0x40, 0x0, 0x40, '\x00', 0x24}, {}, {0x0, 0x0, 0x8}, {}, {0x0, 0x9, 0x4}, {0x0, 0x2, 0xb, '\x00', 0x20}, {}, {0x3, 0x0, 0x0, '\x00', 0xfc}, {0x20, 0x0, 0x4}, {0x0, 0x0, 0x0, '\x00', 0x7}, {0x0, 0x0, 0x8}, {0x0, 0x0, 0x0, '\x00', 0xb}, {0x0, 0x9}, {0x0, 0x0, 0x40}]}}) ioctl$EVIOCGMASK(r12, 0x80015b11, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dsp-prlimit64-prctl$PR_SCHED_CORE-socket$inet6_tcp-close-socket$inet6_mptcp-bind$inet6-listen-socket$inet_mptcp-setsockopt$sock_int-connect$inet-accept-sendmsg$TEAM_CMD_OPTIONS_SET-recvfrom detailed listing: executing program 0: openat$dsp(0xffffffffffffff9c, &(0x7f00000003c0), 0x101a02, 0x0) prlimit64(0x0, 0xe, &(0x7f00000007c0)={0x8, 0x88}, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) close(r0) r1 = socket$inet6_mptcp(0xa, 0x1, 0x106) bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x3, @empty, 0x1}, 0x1c) listen(r1, 0x1) r2 = socket$inet_mptcp(0x2, 0x1, 0x106) setsockopt$sock_int(r2, 0x1, 0x8, &(0x7f0000000140)=0x7, 0x4) connect$inet(r2, &(0x7f0000000000)={0x2, 0x4e22, @empty}, 0x10) r3 = accept(r0, 0x0, 0x0) sendmsg$TEAM_CMD_OPTIONS_SET(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000001c0)=ANY=[], 0xfffffdef}}, 0x1) recvfrom(r2, &(0x7f0000000180)=""/60, 0xfffffffffffffecb, 0x4100, 0x0, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$dsp-prlimit64-prctl$PR_SCHED_CORE-socket$inet6_tcp-close-socket$inet6_mptcp-bind$inet6-listen-socket$inet_mptcp-setsockopt$sock_int-connect$inet-accept-sendmsg$TEAM_CMD_OPTIONS_SET-recvfrom detailed listing: executing program 0: openat$dsp(0xffffffffffffff9c, &(0x7f00000003c0), 0x101a02, 0x0) prlimit64(0x0, 0xe, &(0x7f00000007c0)={0x8, 0x88}, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) close(r0) r1 = socket$inet6_mptcp(0xa, 0x1, 0x106) bind$inet6(r0, &(0x7f0000000040)={0xa, 0x4e22, 0x3, @empty, 0x1}, 0x1c) listen(r1, 0x1) r2 = socket$inet_mptcp(0x2, 0x1, 0x106) setsockopt$sock_int(r2, 0x1, 0x8, &(0x7f0000000140)=0x7, 0x4) connect$inet(r2, &(0x7f0000000000)={0x2, 0x4e22, @empty}, 0x10) r3 = accept(r0, 0x0, 0x0) sendmsg$TEAM_CMD_OPTIONS_SET(r3, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000001c0)=ANY=[], 0xfffffdef}}, 0x1) recvfrom(r2, &(0x7f0000000180)=""/60, 0xfffffffffffffecb, 0x4100, 0x0, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-open-fcntl$setsig-fcntl$setlease-timer_create-timer_settime-truncate detailed listing: executing program 0: sync() r0 = open(&(0x7f00009e1000)='./file0\x00', 0x60840, 0x0) fcntl$setsig(r0, 0xa, 0x13) fcntl$setlease(r0, 0x400, 0x0) timer_create(0x0, &(0x7f00000005c0)={0x0, 0x12, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000280)=0x0) timer_settime(r1, 0x0, &(0x7f0000000180)={{0x0, 0x989680}, {0x0, 0x1c9c380}}, 0x0) truncate(&(0x7f0000000040)='./file0\x00', 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-open-fcntl$setsig-fcntl$setlease-timer_create-timer_settime-truncate detailed listing: executing program 0: sync() r0 = open(&(0x7f00009e1000)='./file0\x00', 0x60840, 0x0) fcntl$setsig(r0, 0xa, 0x13) fcntl$setlease(r0, 0x400, 0x0) timer_create(0x0, &(0x7f00000005c0)={0x0, 0x12, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000280)=0x0) timer_settime(r1, 0x0, &(0x7f0000000180)={{0x0, 0x989680}, {0x0, 0x1c9c380}}, 0x0) truncate(&(0x7f0000000040)='./file0\x00', 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap-madvise-mlock detailed listing: executing program 0: mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeed, 0x8031, 0xffffffffffffffff, 0xf6d0f000) mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil) madvise(&(0x7f0000000000/0x600000)=nil, 0x600003, 0x19) mlock(&(0x7f00007d8000/0x800000)=nil, 0x800000) program crashed: INFO: task hung in do_madvise single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap-madvise detailed listing: executing program 0: mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeed, 0x8031, 0xffffffffffffffff, 0xf6d0f000) mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil) madvise(&(0x7f0000000000/0x600000)=nil, 0x600003, 0x19) program crashed: INFO: task hung in exit_mm testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap detailed listing: executing program 0: mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeed, 0x8031, 0xffffffffffffffff, 0xf6d0f000) mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil) program crashed: INFO: task hung in exit_mm testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap detailed listing: executing program 0: mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeed, 0x8031, 0xffffffffffffffff, 0xf6d0f000) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mremap detailed listing: executing program 0: mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap program crashed: INFO: task hung in exit_mm simplifying C reproducer testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap program crashed: INFO: task hung in exit_mm testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap program crashed: INFO: task hung in exit_mm testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap program crashed: INFO: task hung in exit_mm testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap program crashed: INFO: task hung in exit_mm testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap program crashed: INFO: task hung in exit_mm testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap program crashed: INFO: task hung in exit_mm testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap detailed listing: executing program 0: mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeed, 0x8031, 0xffffffffffffffff, 0xf6d0f000) mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil) program crashed: INFO: task hung in exit_mm validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap detailed listing: executing program 0: mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeed, 0x8031, 0xffffffffffffffff, 0xf6d0f000) mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil) program crashed: INFO: task hung in exit_mm validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-mremap detailed listing: executing program 0: mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeed, 0x8031, 0xffffffffffffffff, 0xf6d0f000) mremap(&(0x7f0000000000/0x9000)=nil, 0x600002, 0x600002, 0x7, &(0x7f0000a00000/0x600000)=nil) program crashed: INFO: task hung in exit_mm validation run: crashed=true reproducing took 2h4m21.287399545s repro crashed as (corrupted=false): INFO: task syz.0.16:6045 blocked for more than 143 seconds. Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 Blocked by coredump. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.16 state:D stack:25096 pid:6045 tgid:6045 ppid:5959 task_flags:0x40004c flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5351 [inline] __schedule+0x1737/0x4d30 kernel/sched/core.c:6954 __schedule_loop kernel/sched/core.c:7036 [inline] schedule+0x165/0x360 kernel/sched/core.c:7051 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7108 rwsem_down_read_slowpath+0x5fd/0x8f0 kernel/locking/rwsem.c:1088 __down_read_common kernel/locking/rwsem.c:1263 [inline] __down_read kernel/locking/rwsem.c:1276 [inline] down_read+0x98/0x2e0 kernel/locking/rwsem.c:1541 mmap_read_lock include/linux/mmap_lock.h:412 [inline] exit_mm+0xcc/0x2c0 kernel/exit.c:557 do_exit+0x648/0x2300 kernel/exit.c:947 do_group_exit+0x21c/0x2d0 kernel/exit.c:1100 __do_sys_exit_group kernel/exit.c:1111 [inline] __se_sys_exit_group kernel/exit.c:1109 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1109 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232 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: 0033:0x7fe0bc18e9a9 RSP: 002b:00007fffbe1124e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe0bc18e9a9 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000003 R08: 00000002be1125df R09: 00007fe0bc380260 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe0bc380260 R14: 0000000000000003 R15: 00007fffbe1125a0 INFO: task syz.0.16:6046 blocked for more than 144 seconds. Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 Blocked by coredump. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.16 state:D stack:25208 pid:6046 tgid:6045 ppid:5959 task_flags:0x40044c flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5351 [inline] __schedule+0x1737/0x4d30 kernel/sched/core.c:6954 __schedule_loop kernel/sched/core.c:7036 [inline] schedule+0x165/0x360 kernel/sched/core.c:7051 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7108 rwsem_down_read_slowpath+0x5fd/0x8f0 kernel/locking/rwsem.c:1088 __down_read_common kernel/locking/rwsem.c:1263 [inline] __down_read kernel/locking/rwsem.c:1276 [inline] down_read+0x98/0x2e0 kernel/locking/rwsem.c:1541 mmap_read_lock include/linux/mmap_lock.h:412 [inline] exit_mm+0xcc/0x2c0 kernel/exit.c:557 do_exit+0x648/0x2300 kernel/exit.c:947 do_group_exit+0x21c/0x2d0 kernel/exit.c:1100 get_signal+0x1286/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:208 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0bc18e9a9 RSP: 002b:00007fe0bcf6d0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fe0bc3b5fa8 RCX: 00007fe0bc18e9a9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe0bc3b5fa8 RBP: 00007fe0bc3b5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe0bc3b5fac R13: 0000000000000000 R14: 00007fffbe1120a0 R15: 00007fffbe112188 Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6770 2 locks held by kworker/u8:4/69: 3 locks held by kworker/u8:8/1173: #0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3211 [inline] #0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3319 #1: ffffc90003ac7bc0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3212 [inline] #1: ffffc90003ac7bc0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3319 #2: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:303 2 locks held by getty/5610: #0: ffff888033e0e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900036c32f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 drivers/tty/n_tty.c:2222 1 lock held by syz.0.16/6045: #0: ffff88802839b7a0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88802839b7a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.0.16/6046: #0: ffff88802839b7a0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88802839b7a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 2 locks held by syz.0.16/6055: 1 lock held by syz.1.17/6141: #0: ffff888027f9ed60 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f9ed60 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.1.17/6142: #0: ffff888027f9ed60 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f9ed60 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 4 locks held by syz.1.17/6143: 1 lock held by syz.2.18/6166: #0: ffff88807a7657e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88807a7657e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.2.18/6167: #0: ffff88807a7657e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88807a7657e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.2.18/6168: 1 lock held by syz.3.19/6191: #0: ffff888027f981e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f981e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.3.19/6192: #0: ffff888027f981e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f981e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 3 locks held by syz.3.19/6193: 1 lock held by syz.4.20/6226: #0: ffff888027f98ca0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f98ca0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.4.20/6227: #0: ffff888027f98ca0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f98ca0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 3 locks held by syz.4.20/6231: 1 lock held by syz.5.21/6262: #0: ffff88807a762ce0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88807a762ce0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.5.21/6263: #0: ffff88807a762ce0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88807a762ce0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 2 locks held by syz.5.21/6264: 1 lock held by syz.6.22/6294: #0: ffff888027f9a220 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f9a220 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.6.22/6295: #0: ffff888027f9a220 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f9a220 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 3 locks held by syz.6.22/6296: 3 locks held by syz-executor/6305: #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250 net/core/rtnetlink.c:570 #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70 net/core/rtnetlink.c:4056 #2: ffffffff8e543338 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:311 [inline] #2: ffffffff8e543338 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730 kernel/rcu/tree_exp.h:967 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline] watchdog+0xf93/0xfe0 kernel/hung_task.c:491 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 6190 Comm: kworker/0:4 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: wg-crypt-wg0 wg_packet_encrypt_worker RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:217 [inline] RIP: 0010:unwind_next_frame+0x219/0x2390 arch/x86/kernel/unwind_orc.c:494 Code: 3f 76 0c 8d 42 ff 44 39 f8 0f 86 65 18 00 00 44 89 f8 4c 8d 2c 85 08 fe 21 91 4c 89 e8 48 c1 e8 03 0f b6 04 28 84 c0 48 89 eb <0f> 85 1c 1c 00 00 45 8b 6d 00 44 89 f8 ff c0 48 8d 2c 85 08 fe 21 RSP: 0018:ffffc90000007778 EFLAGS: 00000246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 6bed61bc2692a000 RDX: 00000000000a8343 RSI: ffffffff8c04d3e0 RDI: ffffffff8c04d3a0 RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff81730195 R10: ffffc90000007898 R11: ffffffff81ac9660 R12: ffffffff81a85064 R13: ffffffff91249f48 R14: ffffc90000007848 R15: 000000000000a850 FS: 0000000000000000(0000) GS:ffff8881257ab000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fe8254aa58 CR3: 00000000293e8000 CR4: 00000000003526f0 Call Trace: arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2417 [inline] slab_free mm/slub.c:4680 [inline] kfree+0x18e/0x440 mm/slub.c:4879 slab_free_after_rcu_debug+0x60/0x2a0 mm/slub.c:4717 rcu_do_batch kernel/rcu/tree.c:2605 [inline] rcu_core+0xca5/0x1710 kernel/rcu/tree.c:2861 handle_softirqs+0x286/0x870 kernel/softirq.c:579 do_softirq+0xec/0x180 kernel/softirq.c:480 __local_bh_enable_ip+0x17d/0x1c0 kernel/softirq.c:407 spin_unlock_bh include/linux/spinlock.h:396 [inline] ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline] wg_packet_encrypt_worker+0x167a/0x1720 drivers/net/wireguard/send.c:293 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x70e/0x8a0 kernel/kthread.c:463 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): INFO: task syz.0.16:6045 blocked for more than 143 seconds. Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 Blocked by coredump. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.16 state:D stack:25096 pid:6045 tgid:6045 ppid:5959 task_flags:0x40004c flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5351 [inline] __schedule+0x1737/0x4d30 kernel/sched/core.c:6954 __schedule_loop kernel/sched/core.c:7036 [inline] schedule+0x165/0x360 kernel/sched/core.c:7051 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7108 rwsem_down_read_slowpath+0x5fd/0x8f0 kernel/locking/rwsem.c:1088 __down_read_common kernel/locking/rwsem.c:1263 [inline] __down_read kernel/locking/rwsem.c:1276 [inline] down_read+0x98/0x2e0 kernel/locking/rwsem.c:1541 mmap_read_lock include/linux/mmap_lock.h:412 [inline] exit_mm+0xcc/0x2c0 kernel/exit.c:557 do_exit+0x648/0x2300 kernel/exit.c:947 do_group_exit+0x21c/0x2d0 kernel/exit.c:1100 __do_sys_exit_group kernel/exit.c:1111 [inline] __se_sys_exit_group kernel/exit.c:1109 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1109 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232 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: 0033:0x7fe0bc18e9a9 RSP: 002b:00007fffbe1124e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe0bc18e9a9 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000003 R08: 00000002be1125df R09: 00007fe0bc380260 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe0bc380260 R14: 0000000000000003 R15: 00007fffbe1125a0 INFO: task syz.0.16:6046 blocked for more than 144 seconds. Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 Blocked by coredump. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.16 state:D stack:25208 pid:6046 tgid:6045 ppid:5959 task_flags:0x40044c flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5351 [inline] __schedule+0x1737/0x4d30 kernel/sched/core.c:6954 __schedule_loop kernel/sched/core.c:7036 [inline] schedule+0x165/0x360 kernel/sched/core.c:7051 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7108 rwsem_down_read_slowpath+0x5fd/0x8f0 kernel/locking/rwsem.c:1088 __down_read_common kernel/locking/rwsem.c:1263 [inline] __down_read kernel/locking/rwsem.c:1276 [inline] down_read+0x98/0x2e0 kernel/locking/rwsem.c:1541 mmap_read_lock include/linux/mmap_lock.h:412 [inline] exit_mm+0xcc/0x2c0 kernel/exit.c:557 do_exit+0x648/0x2300 kernel/exit.c:947 do_group_exit+0x21c/0x2d0 kernel/exit.c:1100 get_signal+0x1286/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:208 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe0bc18e9a9 RSP: 002b:00007fe0bcf6d0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fe0bc3b5fa8 RCX: 00007fe0bc18e9a9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe0bc3b5fa8 RBP: 00007fe0bc3b5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe0bc3b5fac R13: 0000000000000000 R14: 00007fffbe1120a0 R15: 00007fffbe112188 Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6770 2 locks held by kworker/u8:4/69: 3 locks held by kworker/u8:8/1173: #0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3211 [inline] #0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3319 #1: ffffc90003ac7bc0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3212 [inline] #1: ffffc90003ac7bc0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3319 #2: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:303 2 locks held by getty/5610: #0: ffff888033e0e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900036c32f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 drivers/tty/n_tty.c:2222 1 lock held by syz.0.16/6045: #0: ffff88802839b7a0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88802839b7a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.0.16/6046: #0: ffff88802839b7a0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88802839b7a0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 2 locks held by syz.0.16/6055: 1 lock held by syz.1.17/6141: #0: ffff888027f9ed60 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f9ed60 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.1.17/6142: #0: ffff888027f9ed60 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f9ed60 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 4 locks held by syz.1.17/6143: 1 lock held by syz.2.18/6166: #0: ffff88807a7657e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88807a7657e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.2.18/6167: #0: ffff88807a7657e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88807a7657e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.2.18/6168: 1 lock held by syz.3.19/6191: #0: ffff888027f981e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f981e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.3.19/6192: #0: ffff888027f981e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f981e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 3 locks held by syz.3.19/6193: 1 lock held by syz.4.20/6226: #0: ffff888027f98ca0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f98ca0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.4.20/6227: #0: ffff888027f98ca0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f98ca0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 3 locks held by syz.4.20/6231: 1 lock held by syz.5.21/6262: #0: ffff88807a762ce0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88807a762ce0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.5.21/6263: #0: ffff88807a762ce0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff88807a762ce0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 2 locks held by syz.5.21/6264: 1 lock held by syz.6.22/6294: #0: ffff888027f9a220 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f9a220 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 1 lock held by syz.6.22/6295: #0: ffff888027f9a220 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock include/linux/mmap_lock.h:412 [inline] #0: ffff888027f9a220 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 kernel/exit.c:557 3 locks held by syz.6.22/6296: 3 locks held by syz-executor/6305: #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8f0c03e0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250 net/core/rtnetlink.c:570 #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #1: ffffffff8f938688 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70 net/core/rtnetlink.c:4056 #2: ffffffff8e543338 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:311 [inline] #2: ffffffff8e543338 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730 kernel/rcu/tree_exp.h:967 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline] watchdog+0xf93/0xfe0 kernel/hung_task.c:491 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 6190 Comm: kworker/0:4 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: wg-crypt-wg0 wg_packet_encrypt_worker RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:217 [inline] RIP: 0010:unwind_next_frame+0x219/0x2390 arch/x86/kernel/unwind_orc.c:494 Code: 3f 76 0c 8d 42 ff 44 39 f8 0f 86 65 18 00 00 44 89 f8 4c 8d 2c 85 08 fe 21 91 4c 89 e8 48 c1 e8 03 0f b6 04 28 84 c0 48 89 eb <0f> 85 1c 1c 00 00 45 8b 6d 00 44 89 f8 ff c0 48 8d 2c 85 08 fe 21 RSP: 0018:ffffc90000007778 EFLAGS: 00000246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 6bed61bc2692a000 RDX: 00000000000a8343 RSI: ffffffff8c04d3e0 RDI: ffffffff8c04d3a0 RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff81730195 R10: ffffc90000007898 R11: ffffffff81ac9660 R12: ffffffff81a85064 R13: ffffffff91249f48 R14: ffffc90000007848 R15: 000000000000a850 FS: 0000000000000000(0000) GS:ffff8881257ab000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fe8254aa58 CR3: 00000000293e8000 CR4: 00000000003526f0 Call Trace: arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2417 [inline] slab_free mm/slub.c:4680 [inline] kfree+0x18e/0x440 mm/slub.c:4879 slab_free_after_rcu_debug+0x60/0x2a0 mm/slub.c:4717 rcu_do_batch kernel/rcu/tree.c:2605 [inline] rcu_core+0xca5/0x1710 kernel/rcu/tree.c:2861 handle_softirqs+0x286/0x870 kernel/softirq.c:579 do_softirq+0xec/0x180 kernel/softirq.c:480 __local_bh_enable_ip+0x17d/0x1c0 kernel/softirq.c:407 spin_unlock_bh include/linux/spinlock.h:396 [inline] ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline] wg_packet_encrypt_worker+0x167a/0x1720 drivers/net/wireguard/send.c:293 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245