From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CA8DB1CAA87 for ; Sat, 25 Jan 2025 09:56:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737798966; cv=none; b=a7kspTI3qcw+dgmBOCi9y5fC8a6EZcB/e6ZIBhb/bqbyKww9HKauxj/KQtHvrQoQa4DmuEy7Q2BwUWg57JemntiEyz9vaIwbT0KZ6pPEjYKSwLktUAm7i5mzI3GsnbpMkZyB/v4xufAUZ2ISQoIzlmtX4jYCkG1lLZypIcBMB6w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737798966; c=relaxed/simple; bh=um4SIFlqmBZujoF79gXbjMR2+uK5an8mHrNlM8NYsXY=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; 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linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1fcf:b0:3cd:d08a:5c99 with SMTP id e9e14a558f8ab-3cf7440c386mr259268035ab.8.1737798963923; Sat, 25 Jan 2025 01:56:03 -0800 (PST) Date: Sat, 25 Jan 2025 01:56:03 -0800 In-Reply-To: <20250125094128.49098-1-aha310510@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6794b533.050a0220.2eae65.0026.GAE@google.com> Subject: Re: [syzbot] [bcachefs?] general protection fault in bch2_subvolume_delete From: syzbot To: aha310510@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot tried to test the proposed patch but the build/boot failed: 86.173663][ T30] ? mark_lock+0x9a/0x360 [ 86.173676][ T30] __lock_acquire+0x1397/0x2100 [ 86.173699][ T30] lock_acquire+0x1ed/0x550 [ 86.173711][ T30] ? unregister_netdevice_many_notify+0xac2/0x2030 [ 86.173729][ T30] ? __pfx_lock_acquire+0x10/0x10 [ 86.173742][ T30] ? __pfx___might_resched+0x10/0x10 [ 86.173755][ T30] ? finish_wait+0xd4/0x1e0 [ 86.173769][ T30] __mutex_lock+0x19c/0x1010 [ 86.173782][ T30] ? unregister_netdevice_many_notify+0xac2/0x2030 [ 86.173799][ T30] ? unregister_netdevice_many_notify+0xac2/0x2030 [ 86.173813][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 86.173824][ T30] ? __pfx___might_resched+0x10/0x10 [ 86.173835][ T30] ? unregister_netdevice_many_notify+0x9fa/0x2030 [ 86.173850][ T30] ? unregister_netdevice_many_notify+0x9fa/0x2030 [ 86.173867][ T30] unregister_netdevice_many_notify+0xac2/0x2030 [ 86.173882][ T30] ? mark_lock+0x9a/0x360 [ 86.173898][ T30] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 86.173912][ T30] ? kernfs_remove_by_name_ns+0x11b/0x160 [ 86.173919][ T30] ? __pfx_lock_release+0x10/0x10 [ 86.173930][ T30] unregister_netdevice_queue+0x303/0x370 [ 86.173939][ T30] ? __pfx_up_write+0x10/0x10 [ 86.173946][ T30] ? __pfx_unregister_netdevice_queue+0x10/0x10 [ 86.173960][ T30] ? kernfs_remove_by_name_ns+0x11b/0x160 [ 86.173970][ T30] _cfg80211_unregister_wdev+0x163/0x590 [ 86.173983][ T30] ieee80211_remove_interfaces+0x4ef/0x700 [ 86.173999][ T30] ? __pfx_ieee80211_remove_interfaces+0x10/0x10 [ 86.174014][ T30] ? rcu_is_watching+0x15/0xb0 [ 86.174025][ T30] ieee80211_unregister_hw+0x5d/0x2c0 [ 86.174039][ T30] mac80211_hwsim_del_radio+0x2c4/0x4c0 [ 86.174056][ T30] ? __pfx_mac80211_hwsim_del_radio+0x10/0x10 [ 86.174068][ T30] hwsim_exit_net+0x5c1/0x670 [ 86.174075][ T30] ? __pfx_hwsim_exit_net+0x10/0x10 [ 86.174084][ T30] ? __ip_vs_dev_cleanup_batch+0x239/0x260 [ 86.174097][ T30] cleanup_net+0x812/0xd60 [ 86.174110][ T30] ? __pfx_cleanup_net+0x10/0x10 [ 86.174123][ T30] ? process_scheduled_works+0x976/0x1840 [ 86.174135][ T30] process_scheduled_works+0xa66/0x1840 [ 86.174152][ T30] ? __pfx_process_scheduled_works+0x10/0x10 [ 86.174166][ T30] ? assign_work+0x364/0x3d0 [ 86.174177][ T30] worker_thread+0x870/0xd30 [ 86.174192][ T30] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 86.174203][ T30] ? __kthread_parkme+0x169/0x1d0 [ 86.174217][ T30] ? __pfx_worker_thread+0x10/0x10 [ 86.174228][ T30] kthread+0x7a9/0x920 [ 86.174241][ T30] ? __pfx_kthread+0x10/0x10 [ 86.174255][ T30] ? __pfx_worker_thread+0x10/0x10 [ 86.174266][ T30] ? __pfx_kthread+0x10/0x10 [ 86.174279][ T30] ? __pfx_kthread+0x10/0x10 [ 86.174292][ T30] ? __pfx_kthread+0x10/0x10 [ 86.174305][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 86.174314][ T30] ? lockdep_hardirqs_on+0x99/0x150 [ 86.174325][ T30] ? __pfx_kthread+0x10/0x10 [ 86.174338][ T30] ret_from_fork+0x4b/0x80 [ 86.174351][ T30] ? __pfx_kthread+0x10/0x10 [ 86.174364][ T30] ret_from_fork_asm+0x1a/0x30 [ 86.174379][ T30] [ 86.326052][ T5403] 8021q: adding VLAN 0 to HW filter on device team0 [ 86.344710][ T5403] hsr0: Slave A (hsr_slave_0) is not up; please bring = it up to get a fully working HSR network [ 86.348674][ T5403] hsr0: Slave B (hsr_slave_1) is not up; please bring = it up to get a fully working HSR network [ 86.356759][ T1094] bridge0: port 1(bridge_slave_0) entered blocking sta= te [ 86.359179][ T1094] bridge0: port 1(bridge_slave_0) entered forwarding s= tate [ 86.362292][ T1094] bridge0: port 2(bridge_slave_1) entered blocking sta= te [ 86.365046][ T1094] bridge0: port 2(bridge_slave_1) entered forwarding s= tate [ 86.502482][ T5403] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 86.529234][ T5403] veth0_vlan: entered promiscuous mode [ 86.547503][ T5403] veth1_vlan: entered promiscuous mode [ 86.561423][ T5403] veth0_macvtap: entered promiscuous mode [ 86.581382][ T5403] veth1_macvtap: entered promiscuous mode [ 86.590531][ T5403] batman_adv: batadv0: Interface activated: batadv_sla= ve_0 [ 86.598005][ T5403] batman_adv: batadv0: Interface activated: batadv_sla= ve_1 [ 86.602999][ T5403] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 86.610307][ T9] cfg80211: failed to load regulatory.db [ 86.612903][ T5403] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 86.616325][ T5403] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 86.619556][ T5403] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 f= amily 0 port 6081 - 0 [ 86.658341][ T5403] ieee80211 phy5: Selected rate control algorithm 'min= strel_ht' [ 86.690732][ T11] wlan0: Created IBSS using preconfigured BSSID 50:50:= 50:50:50:50 [ 86.697289][ T11] wlan0: Creating new IBSS network, BSSID 50:50:50:50:= 50:50 [ 86.703108][ T5403] ieee80211 phy6: Selected rate control algorithm 'min= strel_ht' [ 86.736086][ T1091] wlan1: Created IBSS using preconfigured BSSID 50:50:= 50:50:50:50 [ 86.738855][ T1091] wlan1: Creating new IBSS network, BSSID 50:50:50:50:= 50:50 [ 88.141021][ T30] netdevsim netdevsim0 netdevsim3 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 89.436714][ T30] netdevsim netdevsim0 netdevsim2 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 89.846349][ T30] netdevsim netdevsim0 netdevsim1 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 89.877734][ T30] netdevsim netdevsim0 netdevsim0 (unregistering): uns= et [1, 0] type 2 family 0 port 6081 - 0 [ 89.940689][ T30] bridge_slave_1: left allmulticast mode [ 89.942726][ T30] bridge_slave_1: left promiscuous mode [ 89.945910][ T30] bridge0: port 2(bridge_slave_1) entered disabled sta= te [ 89.949410][ T30] bridge_slave_0: left allmulticast mode [ 89.951543][ T30] bridge_slave_0: left promiscuous mode [ 89.953892][ T30] bridge0: port 1(bridge_slave_0) entered disabled sta= te [ 90.074471][ T30] bond0 (unregistering): (slave bond_slave_0): Releasi= ng backup interface [ 90.078732][ T30] bond0 (unregistering): (slave bond_slave_1): Releasi= ng backup interface [ 90.082590][ T30] bond0 (unregistering): Released all slaves [ 90.204319][ T30] hsr_slave_0: left promiscuous mode [ 90.207269][ T30] hsr_slave_1: left promiscuous mode [ 90.215565][ T30] batman_adv: batadv0: Interface deactivated: batadv_s= lave_0 [ 90.218556][ T30] batman_adv: batadv0: Removing interface: batadv_slav= e_0 [ 90.234126][ T30] batman_adv: batadv0: Interface deactivated: batadv_s= lave_1 [ 90.237099][ T30] batman_adv: batadv0: Removing interface: batadv_slav= e_1 [ 90.241437][ T30] veth1_macvtap: left promiscuous mode [ 90.243584][ T30] veth0_macvtap: left promiscuous mode [ 90.246002][ T30] veth1_vlan: left promiscuous mode [ 90.248034][ T30] veth0_vlan: left promiscuous mode [ 90.400194][ T30] team0 (unregistering): Port device team_slave_1 remo= ved [ 90.412669][ T30] team0 (unregistering): Port device team_slave_0 remo= ved VM DIAGNOSIS: 09:55:22 Registers: info registers vcpu 0 CPU#0 RAX=3D0000000000000034 RBX=3Dffffffff9a743940 RCX=3D0000000000000000 RDX=3D= 00000000000003f8 RSI=3D0000000000000000 RDI=3D0000000000000020 RBP=3D0000000000000000 RSP=3D= ffffc900005164b0 R8 =3Dffffffff8576147b R9 =3D1ffff11003e09046 R10=3Ddffffc0000000000 R11=3D= ffffffff85761430 R12=3Ddffffc0000000000 R13=3Dffffffff9a43df4b R14=3D0000000000000034 R15=3D= 00000000000003f8 RIP=3Dffffffff857614ae RFL=3D00000002 [-------] CPL=3D0 II=3D0 A20=3D1 SMM= =3D0 HLT=3D0 ES =3D0000 0000000000000000 ffffffff 00c00000 CS =3D0010 0000000000000000 ffffffff 00a09b00 DPL=3D0 CS64 [-RA] SS =3D0018 0000000000000000 ffffffff 00c09300 DPL=3D0 DS [-WA] DS =3D0000 0000000000000000 ffffffff 00c00000 FS =3D0000 0000000000000000 ffffffff 00c00000 GS =3D0000 ffff88801fc00000 ffffffff 00c00000 LDT=3D0000 0000000000000000 ffffffff 00c00000 TR =3D0040 fffffe0000003000 00004087 00008b00 DPL=3D0 TSS64-busy GDT=3D fffffe0000001000 0000007f IDT=3D fffffe0000000000 00000fff CR0=3D80050033 CR2=3D000055cf5c5e0131 CR3=3D0000000059c88000 CR4=3D00352ef0 DR0=3D0000000000000000 DR1=3D0000000000000000 DR2=3D0000000000000000 DR3=3D= 0000000000000000=20 DR6=3D00000000fffe0ff0 DR7=3D0000000000000400 EFER=3D0000000000000d01 FCW=3D037f FSW=3D0000 [ST=3D0] FTW=3D00 MXCSR=3D00001f80 FPR0=3D0000000000000000 0000 FPR1=3D0000000000000000 0000 FPR2=3D0000000000000000 0000 FPR3=3D0000000000000000 0000 FPR4=3D0000000000000000 0000 FPR5=3D0000000000000000 0000 FPR6=3D0000000000000000 0000 FPR7=3D0000000000000000 0000 Opmask00=3D0000000000200020 Opmask01=3D0000000000000fff Opmask02=3D00000000= ffffffef Opmask03=3D0000000000000000 Opmask04=3D0000000000000000 Opmask05=3D0000000000000000 Opmask06=3D00000000= 00000000 Opmask07=3D0000000000000000 ZMM00=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM01=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 00007ffd0a6c0bd0 0000003000000010 ZMM02=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 00007fb809402a6f ZMM03=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 00007fb809402a67 ZMM04=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 00007fb809402a9a ZMM05=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 00007fb809402aa7 ZMM06=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 00007fb809402aa1 ZMM07=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 00007fb809402ab5 ZMM08=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 00007fb809402b3b ZMM09=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 00007fb809402c19 ZMM10=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM11=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM12=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM13=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM14=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM15=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM16=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 2525252525252525 2525252525252525 2525252525252525 2525252525252525 ZMM18=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 6e6f625f6f745f31 6874657600646e6f 625f6f745f306874 6576006567646972 ZMM19=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 625f6f745f316874 6576006567646972 625f6f745f306874 6576003168746576 ZMM20=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM21=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM22=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM23=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM24=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM25=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM26=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM27=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM28=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM29=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM30=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM31=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 syzkaller build log: go env (err=3D) GO111MODULE=3D'auto' GOARCH=3D'amd64' GOBIN=3D'' GOCACHE=3D'/syzkaller/.cache/go-build' GOENV=3D'/syzkaller/.config/go/env' GOEXE=3D'' GOEXPERIMENT=3D'' GOFLAGS=3D'' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMODCACHE=3D'/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs/linux/gopath' GOPRIVATE=3D'' GOPROXY=3D'https://proxy.golang.org,direct' GOROOT=3D'/usr/local/go' GOSUMDB=3D'sum.golang.org' GOTMPDIR=3D'' GOTOOLCHAIN=3D'auto' GOTOOLDIR=3D'/usr/local/go/pkg/tool/linux_amd64' GOVCS=3D'' GOVERSION=3D'go1.22.7' GCCGO=3D'gccgo' GOAMD64=3D'v1' AR=3D'ar' CC=3D'gcc' CXX=3D'g++' CGO_ENABLED=3D'1' GOMOD=3D'/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mo= d' GOWORK=3D'' CGO_CFLAGS=3D'-O2 -g' CGO_CPPFLAGS=3D'' CGO_CXXFLAGS=3D'-O2 -g' CGO_FFLAGS=3D'-O2 -g' CGO_LDFLAGS=3D'-O2 -g' PKG_CONFIG=3D'pkg-config' GOGCCFLAGS=3D'-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=3D0= -ffile-prefix-map=3D/tmp/go-build1787408358=3D/tmp/go-build -gno-record-gc= c-switches' git status (err=3D) HEAD detached at da72ac06e38 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:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sy= s/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env bin/syz-sysgen go fmt ./sys/... >/dev/null touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build "-ldflags=3D-s -w -X github.com/google= /syzkaller/prog.GitRevision=3Dda72ac06e38cf1dd2ecbddd5502225ff7589542d -X '= github.com/google/syzkaller/prog.gitRevisionDate=3D20250121-154645'" "-tags= =3Dsyz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execpr= og github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wfr= ame-larger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-forma= t-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -= static-pie -std=3Dc++17 -I. -Iexecutor/_include -DGOOS_linux=3D1 -DGOARCH= _amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"da72ac06e38cf1dd2ecbddd5502225ff75= 89542d\" /usr/bin/ld: /tmp/ccYhmzh2.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applicat= ions requires at runtime the shared libraries from the glibc version used f= or linking Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=3D128e9e18580000 Tested on: commit: b46c89c0 Merge tag 'spi-fix-v6.14-merge-window' of git.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3Dba866aed9d46ef9= 7 dashboard link: https://syzkaller.appspot.com/bug?extid=3D2875f6362e0214a32= 381 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debia= n) 2.40 Note: no patches were applied.