WARNING: lock held when returning to user space in ptp_open damon-dbgfs: DAMON debugfs interface is deprecated, so users should move to DAMON_SYSFS. If you cannot, please report your usecase to damon@lists.linux.dev and linux-mm@kvack.org. ================================================ WARNING: lock held when returning to user space! 6.6.0-rc6-next-20231018-syzkaller-dirty #0 Not tainted ------------------------------------------------ syz-fuzzer/5045 is leaving the kernel with locks still held! 1 lock held by syz-fuzzer/5045: #0: ffff88814b1a0660 (&ptp->tsevq_mux){+.+.}-{3:3}, at: ptp_open+0xbc/0x530 drivers/ptp/ptp_chardev.c:112 can: request_module (can-proto-0) failed. can: request_module (can-proto-0) failed. can: request_module (can-proto-0) failed. UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list base_sock_release(ffff888078b99e00) sk=ffff8880763ff000 Warning: Permanently added '10.128.0.79' (ED25519) to the list of known hosts. 2023/10/28 03:37:23 fuzzer started 2023/10/28 03:37:24 connecting to host at 10.128.0.169:37679 2023/10/28 03:37:24 checking machine... 2023/10/28 03:37:24 checking revisions... 2023/10/28 03:37:24 testing simple program... [ 73.728803][ T5050] cgroup: Unknown subsys name 'net' [ 73.870798][ T5050] cgroup: Unknown subsys name 'rlimit' [ 75.511846][ T5050] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 75.705858][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 75.715304][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 75.723361][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 75.731464][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 75.739069][ T50] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 75.746741][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 75.920515][ T5054] chnl_net:caif_netlink_parms(): no params data found [ 76.000871][ T5054] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.009054][ T5054] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.016962][ T5054] bridge_slave_0: entered allmulticast mode [ 76.024258][ T5054] bridge_slave_0: entered promiscuous mode [ 76.034137][ T5054] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.041464][ T5054] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.049692][ T5054] bridge_slave_1: entered allmulticast mode [ 76.057019][ T5054] bridge_slave_1: entered promiscuous mode [ 76.092654][ T5054] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.105170][ T5054] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.143237][ T5054] team0: Port device team_slave_0 added [ 76.152852][ T5054] team0: Port device team_slave_1 added [ 76.184579][ T5054] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.191739][ T5054] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 76.219909][ T5054] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.233897][ T5054] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.241232][ T5054] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 76.274823][ T5054] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.322774][ T5054] hsr_slave_0: entered promiscuous mode [ 76.330966][ T5054] hsr_slave_1: entered promiscuous mode executing program [ 76.488934][ T5054] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.504201][ T5054] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.517321][ T5054] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.530847][ T5054] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 76.565890][ T5054] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.573602][ T5054] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.581885][ T5054] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.589152][ T5054] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.671115][ T5054] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.693269][ T5051] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.704112][ T5051] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.722154][ T5054] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.738034][ T780] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.745264][ T780] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.762656][ T5064] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.770217][ T5064] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.962288][ T5054] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.022512][ T5054] veth0_vlan: entered promiscuous mode [ 77.036424][ T5054] veth1_vlan: entered promiscuous mode [ 77.077554][ T5054] veth0_macvtap: entered promiscuous mode [ 77.091301][ T5054] veth1_macvtap: entered promiscuous mode [ 77.115306][ T5054] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.137812][ T5054] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.153537][ T5054] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.164129][ T5054] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.173943][ T5054] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.183346][ T5054] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.282986][ T2836] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.297131][ T2836] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.334449][ T2836] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.342947][ T2836] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 2023/10/28 03:37:28 building call list... executing program [ 79.839935][ T5045] damon-dbgfs: DAMON debugfs interface is deprecated, so users should move to DAMON_SYSFS. If you cannot, please report your usecase to damon@lists.linux.dev and linux-mm@kvack.org. [ 79.953886][ T5045] [ 79.956273][ T5045] ================================================ [ 79.963071][ T5045] WARNING: lock held when returning to user space! [ 79.970052][ T5045] 6.6.0-rc6-next-20231018-syzkaller-dirty #0 Not tainted [ 79.977347][ T5045] ------------------------------------------------ [ 79.984144][ T5045] syz-fuzzer/5045 is leaving the kernel with locks still held! [ 79.991869][ T5045] 1 lock held by syz-fuzzer/5045: [ 79.997281][ T5045] #0: ffff88814b1a0660 (&ptp->tsevq_mux){+.+.}-{3:3}, at: ptp_open+0xbc/0x530 [ 80.113342][ T5045] can: request_module (can-proto-0) failed. [ 80.138941][ T5045] can: request_module (can-proto-0) failed. [ 80.166188][ T5045] can: request_module (can-proto-0) failed. [ 80.318727][ T58] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 80.918621][ T5045] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 81.479051][ T5045] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 81.493640][ T5045] base_sock_release(ffff888078b99e00) sk=ffff8880763ff000 syzkaller build log: go env (err=) GO111MODULE="auto" GOARCH="amd64" GOBIN="" GOCACHE="/syzkaller/.cache/go-build" GOENV="/syzkaller/.config/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE="" GOMODCACHE="/syzkaller/jobs-2/linux/gopath/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/syzkaller/jobs-2/linux/gopath" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/usr/local/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64" GOVCS="" GOVERSION="go1.20.1" GCCGO="gccgo" GOAMD64="v1" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod" GOWORK="" CGO_CFLAGS="-O2 -g" CGO_CPPFLAGS="" CGO_CXXFLAGS="-O2 -g" CGO_FFLAGS="-O2 -g" CGO_LDFLAGS="-O2 -g" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build2966533481=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at 361b23dca nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:32: run command via tools/syz-env for best compatibility, see: Makefile:33: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=361b23dca53619ee1dfd92dd6a74a7f3e58f270c -X 'github.com/google/syzkaller/prog.gitRevisionDate=20231020-131623'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=361b23dca53619ee1dfd92dd6a74a7f3e58f270c -X 'github.com/google/syzkaller/prog.gitRevisionDate=20231020-131623'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=361b23dca53619ee1dfd92dd6a74a7f3e58f270c -X 'github.com/google/syzkaller/prog.gitRevisionDate=20231020-131623'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress mkdir -p ./bin/linux_amd64 gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"361b23dca53619ee1dfd92dd6a74a7f3e58f270c\"