Hello, syzbot tried to test the proposed patch but the build/boot failed: tered promiscuous mode [ 49.294465][ T3636] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 49.305282][ T3636] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 49.325908][ T3636] team0: Port device team_slave_0 added [ 49.333047][ T3636] team0: Port device team_slave_1 added [ 49.350306][ T3636] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 49.357336][ T3636] 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. [ 49.383401][ T3636] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 49.395845][ T3636] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 49.402957][ T3636] 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. [ 49.430471][ T3636] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 49.455720][ T3636] device hsr_slave_0 entered promiscuous mode [ 49.463006][ T3636] device hsr_slave_1 entered promiscuous mode [ 49.538340][ T3636] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 49.549079][ T3636] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.558155][ T3636] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.569133][ T3636] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.590785][ T3636] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.597986][ T3636] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.605904][ T3636] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.613050][ T3636] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.657283][ T3636] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.669522][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.679945][ T14] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.688892][ T14] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.697602][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.710449][ T3636] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.722894][ T3647] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.732572][ T3647] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.739646][ T3647] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.750696][ T923] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.759168][ T923] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.766347][ T923] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.783139][ T3647] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.798118][ T3647] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.807101][ T3647] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.816367][ T3647] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.828659][ T3636] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 49.841622][ T3636] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 49.849961][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 49.867463][ T923] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 49.875057][ T923] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 49.887724][ T3636] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.991352][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 50.007687][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 50.016485][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 50.024664][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 50.034755][ T3636] device veth0_vlan entered promiscuous mode [ 50.047971][ T3636] device veth1_vlan entered promiscuous mode [ 50.067469][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 50.075584][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 50.084115][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 50.095890][ T3636] device veth0_macvtap entered promiscuous mode [ 50.105744][ T3636] device veth1_macvtap entered promiscuous mode [ 50.120925][ T3636] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 50.129807][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 50.139778][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 50.152837][ T3636] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 50.161478][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 50.172240][ T3636] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.182764][ T3636] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.192635][ T3636] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.202479][ T3636] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 50.258761][ T33] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 50.276234][ T33] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 50.292455][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 50.306188][ T11] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 50.315505][ T11] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 50.325576][ T14] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2022/08/10 16:46:13 building call list... [ 50.505046][ T3636] ------------[ cut here ]------------ [ 50.510773][ T3636] ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 [ 50.520732][ T3636] WARNING: CPU: 1 PID: 3636 at lib/debugobjects.c:505 debug_object_assert_init+0x1fa/0x250 [ 50.530739][ T3636] Modules linked in: [ 50.534652][ T3636] CPU: 1 PID: 3636 Comm: syz-executor.0 Not tainted 5.19.0-syzkaller #0 [ 50.542991][ T3636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 50.553063][ T3636] RIP: 0010:debug_object_assert_init+0x1fa/0x250 [ 50.559406][ T3636] Code: e8 bb d2 d1 fd 4c 8b 45 00 48 c7 c7 20 96 6a 8a 48 c7 c6 20 93 6a 8a 48 c7 c2 c0 97 6a 8a 31 c9 49 89 d9 31 c0 e8 86 cd 4e fd <0f> 0b ff 05 da 58 8a 09 48 83 c5 38 48 89 e8 48 c1 e8 03 42 80 3c [ 50.579117][ T3636] RSP: 0018:ffffc9000392f8c8 EFLAGS: 00010046 [ 50.585300][ T3636] RAX: 8bc764758f9d2d00 RBX: 0000000000000000 RCX: ffff88807f27ba80 [ 50.593296][ T3636] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 50.601277][ T3636] RBP: ffffffff8a0fc700 R08: ffffffff8165ed3d R09: ffffed10173a4f14 [ 50.609266][ T3636] R10: ffffed10173a4f14 R11: 1ffff110173a4f13 R12: dffffc0000000000 [ 50.617255][ T3636] R13: ffff88801bea49d0 R14: 0000000000000015 R15: ffffffff900beb38 [ 50.625245][ T3636] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 50.634196][ T3636] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.641255][ T3636] CR2: 00007fe56a2e1200 CR3: 0000000011c4e000 CR4: 00000000003506e0 [ 50.649282][ T3636] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.657280][ T3636] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.665286][ T3636] Call Trace: [ 50.668606][ T3636] <TASK> [ 50.671567][ T3636] del_timer+0x3d/0x2d0 [ 50.675770][ T3636] ? try_to_grab_pending+0xb1/0x700 [ 50.681004][ T3636] try_to_grab_pending+0xbf/0x700 [ 50.686321][ T3636] __cancel_work_timer+0x81/0x5b0 [ 50.691373][ T3636] ? mgmt_send_event_skb+0x2ee/0x4e0 [ 50.696805][ T3636] ? kmem_cache_free+0x95/0x1d0 [ 50.701675][ T3636] ? mgmt_send_event_skb+0x2ee/0x4e0 [ 50.706989][ T3636] mgmt_index_removed+0x244/0x330 [ 50.712032][ T3636] hci_unregister_dev+0x28e/0x460 [ 50.718115][ T3636] ? vhci_open+0x360/0x360 [ 50.722542][ T3636] vhci_release+0x7f/0xd0 [ 50.726883][ T3636] __fput+0x3b9/0x820 [ 50.730896][ T3636] task_work_run+0x146/0x1c0 [ 50.735510][ T3636] do_exit+0x4ed/0x1f30 [ 50.739669][ T3636] ? rcu_read_lock_sched_held+0x41/0xb0 [ 50.745233][ T3636] do_group_exit+0x23b/0x2f0 [ 50.749828][ T3636] ? _raw_spin_unlock_irq+0x1f/0x40 [ 50.755023][ T3636] ? lockdep_hardirqs_on+0x8d/0x130 [ 50.760218][ T3636] get_signal+0x16a3/0x1700 [ 50.766302][ T3636] arch_do_signal_or_restart+0x29/0x5d0 [ 50.771852][ T3636] exit_to_user_mode_loop+0x74/0x150 [ 50.777133][ T3636] exit_to_user_mode_prepare+0xb2/0x140 [ 50.782695][ T3636] syscall_exit_to_user_mode+0x26/0x60 [ 50.788737][ T3636] do_syscall_64+0x49/0x90 [ 50.793176][ T3636] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 50.799177][ T3636] RIP: 0033:0x4191dc [ 50.803063][ T3636] Code: Unable to access opcode bytes at RIP 0x4191b2. [ 50.809916][ T3636] RSP: 002b:00007ffe6c6d7830 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 50.818354][ T3636] RAX: fffffffffffffe00 RBX: 00007ffe6c6d78f0 RCX: 00000000004191dc [ 50.826326][ T3636] RDX: 0000000000000050 RSI: 0000000000568020 RDI: 00000000000000f9 [ 50.834295][ T3636] RBP: 0000000000000003 R08: 0000000000000000 R09: 0079746972756365 [ 50.842269][ T3636] R10: 00000000005436a0 R11: 0000000000000246 R12: 0000000000000032 [ 50.850229][ T3636] R13: 000000000000c4c0 R14: 0000000000000000 R15: 00007ffe6c6d7930 [ 50.858211][ T3636] </TASK> [ 50.861256][ T3636] Kernel panic - not syncing: panic_on_warn set ... [ 50.867835][ T3636] CPU: 1 PID: 3636 Comm: syz-executor.0 Not tainted 5.19.0-syzkaller #0 [ 50.876158][ T3636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 50.886289][ T3636] Call Trace: [ 50.890527][ T3636] <TASK> [ 50.893448][ T3636] dump_stack_lvl+0x131/0x1c8 [ 50.898221][ T3636] panic+0x26b/0x693 [ 50.902113][ T3636] ? __warn+0x131/0x220 [ 50.906266][ T3636] ? debug_object_assert_init+0x1fa/0x250 [ 50.912064][ T3636] __warn+0x1fa/0x220 [ 50.916054][ T3636] ? debug_object_assert_init+0x1fa/0x250 [ 50.921777][ T3636] report_bug+0x1b3/0x2d0 [ 50.926103][ T3636] handle_bug+0x3d/0x70 [ 50.930513][ T3636] exc_invalid_op+0x16/0x40 [ 50.935009][ T3636] asm_exc_invalid_op+0x16/0x20 [ 50.939919][ T3636] RIP: 0010:debug_object_assert_init+0x1fa/0x250 [ 50.946259][ T3636] Code: e8 bb d2 d1 fd 4c 8b 45 00 48 c7 c7 20 96 6a 8a 48 c7 c6 20 93 6a 8a 48 c7 c2 c0 97 6a 8a 31 c9 49 89 d9 31 c0 e8 86 cd 4e fd <0f> 0b ff 05 da 58 8a 09 48 83 c5 38 48 89 e8 48 c1 e8 03 42 80 3c [ 50.965962][ T3636] RSP: 0018:ffffc9000392f8c8 EFLAGS: 00010046 [ 50.972034][ T3636] RAX: 8bc764758f9d2d00 RBX: 0000000000000000 RCX: ffff88807f27ba80 [ 50.980009][ T3636] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 50.988148][ T3636] RBP: ffffffff8a0fc700 R08: ffffffff8165ed3d R09: ffffed10173a4f14 [ 50.996123][ T3636] R10: ffffed10173a4f14 R11: 1ffff110173a4f13 R12: dffffc0000000000 [ 51.004180][ T3636] R13: ffff88801bea49d0 R14: 0000000000000015 R15: ffffffff900beb38 [ 51.012153][ T3636] ? __wake_up_klogd+0xcd/0x100 [ 51.017277][ T3636] ? debug_object_assert_init+0x1fa/0x250 [ 51.023040][ T3636] del_timer+0x3d/0x2d0 [ 51.027291][ T3636] ? try_to_grab_pending+0xb1/0x700 [ 51.032705][ T3636] try_to_grab_pending+0xbf/0x700 [ 51.037752][ T3636] __cancel_work_timer+0x81/0x5b0 [ 51.042785][ T3636] ? mgmt_send_event_skb+0x2ee/0x4e0 [ 51.048148][ T3636] ? kmem_cache_free+0x95/0x1d0 [ 51.053085][ T3636] ? mgmt_send_event_skb+0x2ee/0x4e0 [ 51.058748][ T3636] mgmt_index_removed+0x244/0x330 [ 51.063855][ T3636] hci_unregister_dev+0x28e/0x460 [ 51.069135][ T3636] ? vhci_open+0x360/0x360 [ 51.073542][ T3636] vhci_release+0x7f/0xd0 [ 51.077997][ T3636] __fput+0x3b9/0x820 [ 51.082080][ T3636] task_work_run+0x146/0x1c0 [ 51.086847][ T3636] do_exit+0x4ed/0x1f30 [ 51.091007][ T3636] ? rcu_read_lock_sched_held+0x41/0xb0 [ 51.096557][ T3636] do_group_exit+0x23b/0x2f0 [ 51.101224][ T3636] ? _raw_spin_unlock_irq+0x1f/0x40 [ 51.106439][ T3636] ? lockdep_hardirqs_on+0x8d/0x130 [ 51.111641][ T3636] get_signal+0x16a3/0x1700 [ 51.116151][ T3636] arch_do_signal_or_restart+0x29/0x5d0 [ 51.121725][ T3636] exit_to_user_mode_loop+0x74/0x150 [ 51.127039][ T3636] exit_to_user_mode_prepare+0xb2/0x140 [ 51.132611][ T3636] syscall_exit_to_user_mode+0x26/0x60 [ 51.138271][ T3636] do_syscall_64+0x49/0x90 [ 51.143033][ T3636] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 51.149376][ T3636] RIP: 0033:0x4191dc [ 51.153293][ T3636] Code: Unable to access opcode bytes at RIP 0x4191b2. [ 51.160326][ T3636] RSP: 002b:00007ffe6c6d7830 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 51.170079][ T3636] RAX: fffffffffffffe00 RBX: 00007ffe6c6d78f0 RCX: 00000000004191dc [ 51.178052][ T3636] RDX: 0000000000000050 RSI: 0000000000568020 RDI: 00000000000000f9 [ 51.186026][ T3636] RBP: 0000000000000003 R08: 0000000000000000 R09: 0079746972756365 [ 51.194096][ T3636] R10: 00000000005436a0 R11: 0000000000000246 R12: 0000000000000032 [ 51.202061][ T3636] R13: 000000000000c4c0 R14: 0000000000000000 R15: 00007ffe6c6d7930 [ 51.210491][ T3636] </TASK> [ 51.213889][ T3636] Kernel Offset: disabled [ 51.218357][ T3636] Rebooting in 86400 seconds.. syzkaller build log: go env (err=<nil>) 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/linux/gopath/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/syzkaller/jobs/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="go1.17" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build478383173=/tmp/go-build -gno-record-gcc-switches" git status (err=<nil>) HEAD detached at 607e3baf1 nothing to commit, working tree clean go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen make .descriptions bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=607e3baf1c25928040d05fc22eff6fce7edd709e -X 'github.com/google/syzkaller/prog.gitRevisionDate=20210324-183421'" "-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=607e3baf1c25928040d05fc22eff6fce7edd709e -X 'github.com/google/syzkaller/prog.gitRevisionDate=20210324-183421'" "-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=607e3baf1c25928040d05fc22eff6fce7edd709e -X 'github.com/google/syzkaller/prog.gitRevisionDate=20210324-183421'" "-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 -static -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"607e3baf1c25928040d05fc22eff6fce7edd709e\" Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=149def63080000 Tested on: commit: d4252071 add barriers to buffer_uptodate and set_buffe.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master kernel config: https://syzkaller.appspot.com/x/.config?x=aac0e3f739de465e dashboard link: https://syzkaller.appspot.com/bug?extid=b6c9fe29aefe68e4ad34 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=12593366080000
