* Re: [syzbot] [bridge?] [netfilter?] KASAN: vmalloc-out-of-bounds Read in __ebt_unregister_table [not found] <20230219024213.2103-1-hdanton@sina.com> @ 2023-02-19 2:57 ` syzbot 0 siblings, 0 replies; 6+ messages in thread From: syzbot @ 2023-02-19 2:57 UTC (permalink / raw) To: hdanton, linux-kernel, syzkaller-bugs Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: KASAN: vmalloc-out-of-bounds Read in __ebt_unregister_table ================================================================== BUG: KASAN: vmalloc-out-of-bounds in __ebt_unregister_table+0xf4a/0xfc0 net/bridge/netfilter/ebtables.c:1201 Read of size 4 at addr ffffc90002d9c000 by task kworker/u4:4/74 CPU: 1 PID: 74 Comm: kworker/u4:4 Not tainted 6.2.0-rc8-syzkaller-00083-g3ac88fa4605e-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Workqueue: netns cleanup_net Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:306 [inline] print_report+0x15e/0x45d mm/kasan/report.c:417 kasan_report+0xbf/0x1f0 mm/kasan/report.c:517 __ebt_unregister_table+0xf4a/0xfc0 net/bridge/netfilter/ebtables.c:1201 ebt_unregister_table+0x35/0x40 net/bridge/netfilter/ebtables.c:1405 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:169 cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:613 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> Memory state around the buggy address: ffffc90002d9bf00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90002d9bf80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc90002d9c000: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc90002d9c080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90002d9c100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ================================================================== Tested on: commit: 3ac88fa4 Merge tag 'net-6.2-final' of git://git.kernel.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=17733430c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=fe56f7d193926860 dashboard link: https://syzkaller.appspot.com/bug?extid=f61594de72d6705aea03 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=161cf127480000 ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <20230220072531.2352-1-hdanton@sina.com>]
* Re: [syzbot] [bridge?] [netfilter?] KASAN: vmalloc-out-of-bounds Read in __ebt_unregister_table [not found] <20230220072531.2352-1-hdanton@sina.com> @ 2023-02-20 7:40 ` syzbot 2023-02-20 7:51 ` Dmitry Vyukov 0 siblings, 1 reply; 6+ messages in thread From: syzbot @ 2023-02-20 7:40 UTC (permalink / raw) To: hdanton, linux-kernel, syzkaller-bugs Hello, syzbot tried to test the proposed patch but the build/boot failed: BUG: program execution failed: executor NUM: exit status NUM executing program 2023/02/20 07:39:21 SYZFATAL: BUG: program execution failed: executor 0: exit status 67 SYZFAIL: ebtable checkpoint: getsockopt(EBT_SO_GET_INIT_INFO) failed table=broute (errno 22: Invalid argument) loop exited with status 67 SYZFAIL: ebtable checkpoint: getsockopt(EBT_SO_GET_INIT_INFO) failed table=broute (errno 22: Invalid argument) loop exited with status 67 forked to background, child pid 4644 no interfaces have a carri[ 21.644085][ T4645] 8021q: adding VLAN 0 to HW filter on device bond0 er [ 21.654665][ T4645] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.147' (ECDSA) to the list of known hosts. 2023/02/20 07:39:16 fuzzer started 2023/02/20 07:39:16 connecting to host at 10.128.0.169:38103 2023/02/20 07:39:16 checking machine... 2023/02/20 07:39:16 checking revisions... 2023/02/20 07:39:16 testing simple program... syzkaller login: [ 41.158159][ T5072] cgroup: Unknown subsys name 'net' [ 41.280558][ T5072] cgroup: Unknown subsys name 'rlimit' [ 41.458767][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 41.466801][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 41.474302][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 41.482242][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 41.489962][ T47] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 41.497314][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 41.575513][ T5074] chnl_net:caif_netlink_parms(): no params data found [ 41.605498][ T5074] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.612704][ T5074] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.621073][ T5074] device bridge_slave_0 entered promiscuous mode [ 41.629011][ T5074] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.636311][ T5074] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.644219][ T5074] device bridge_slave_1 entered promiscuous mode [ 41.660216][ T5074] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 41.670509][ T5074] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 41.687969][ T5074] team0: Port device team_slave_0 added [ 41.694592][ T5074] team0: Port device team_slave_1 added [ 41.707841][ T5074] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 41.714774][ T5074] 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. [ 41.740979][ T5074] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 41.753328][ T5074] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 41.760417][ T5074] 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. [ 41.786578][ T5074] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 41.808751][ T5074] device hsr_slave_0 entered promiscuous mode [ 41.815328][ T5074] device hsr_slave_1 entered promiscuous mode [ 41.868811][ T5074] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 41.878202][ T5074] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 41.886794][ T5074] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 41.894950][ T5074] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 41.910541][ T5074] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.917682][ T5074] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.925140][ T5074] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.932231][ T5074] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.961982][ T5074] 8021q: adding VLAN 0 to HW filter on device bond0 [ 41.975137][ T5074] 8021q: adding VLAN 0 to HW filter on device team0 [ 41.982463][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.991359][ T5085] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.999460][ T5085] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.007256][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 42.019018][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 42.027409][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.034725][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.057701][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 42.066041][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.073143][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.081105][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 42.089690][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 42.097954][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 42.105963][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 42.114939][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 42.124330][ T5074] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 42.210712][ T5074] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 42.218113][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 42.225438][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 42.239448][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 42.253747][ T5074] device veth0_vlan entered promiscuous mode [ 42.260990][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 42.269189][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 42.277611][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 42.287989][ T5074] device veth1_vlan entered promiscuous mode [ 42.301815][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 42.309984][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 42.318401][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 42.329281][ T5074] device veth0_macvtap entered promiscuous mode [ 42.338518][ T5074] device veth1_macvtap entered promiscuous mode [ 42.350723][ T5074] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 42.358825][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 42.368262][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 42.378872][ T5074] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 42.386287][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 42.396632][ T5074] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.405419][ T5074] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.414360][ T5074] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.423211][ T5074] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 42.463113][ T55] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 42.471160][ T55] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 42.482258][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 42.491386][ T55] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 42.499597][ T55] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 42.507812][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program 2023/02/20 07:39:21 SYZFATAL: BUG: program execution failed: executor 0: exit status 67 SYZFAIL: ebtable checkpoint: getsockopt(EBT_SO_GET_INIT_INFO) failed table=broute (errno 22: Invalid argument) loop exited with status 67 SYZFAIL: ebtable checkpoint: getsockopt(EBT_SO_GET_INIT_INFO) failed table=broute (errno 22: Invalid argument) loop exited with status 67 [ 46.245969][ T3557] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 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-build2682014572=/tmp/go-build -gno-record-gcc-switches" git status (err=<nil>) HEAD detached at 851bc19a3 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=851bc19a3c4615f6653414b6deec9b9e84c8ca58 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230216-173454'" "-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=851bc19a3c4615f6653414b6deec9b9e84c8ca58 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230216-173454'" "-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=851bc19a3c4615f6653414b6deec9b9e84c8ca58 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230216-173454'" "-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=\"851bc19a3c4615f6653414b6deec9b9e84c8ca58\" Tested on: commit: 3ac88fa4 Merge tag 'net-6.2-final' of git://git.kernel.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git kernel config: https://syzkaller.appspot.com/x/.config?x=fe56f7d193926860 dashboard link: https://syzkaller.appspot.com/bug?extid=f61594de72d6705aea03 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=17c96c30c80000 ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [syzbot] [bridge?] [netfilter?] KASAN: vmalloc-out-of-bounds Read in __ebt_unregister_table 2023-02-20 7:40 ` syzbot @ 2023-02-20 7:51 ` Dmitry Vyukov 0 siblings, 0 replies; 6+ messages in thread From: Dmitry Vyukov @ 2023-02-20 7:51 UTC (permalink / raw) To: hdanton; +Cc: linux-kernel, syzkaller-bugs, syzbot Hi Hillf, I see that Florian also tested a fix for this: https://syzkaller.appspot.com/bug?extid=f61594de72d6705aea03 It looks like Florian figured out something about this bug. On Mon, 20 Feb 2023 at 08:40, syzbot <syzbot+f61594de72d6705aea03@syzkaller.appspotmail.com> wrote: > > Hello, > > syzbot tried to test the proposed patch but the build/boot failed: > > BUG: program execution failed: executor NUM: exit status NUM > > executing program > 2023/02/20 07:39:21 SYZFATAL: BUG: program execution failed: executor 0: exit status 67 > SYZFAIL: ebtable checkpoint: getsockopt(EBT_SO_GET_INIT_INFO) failed > table=broute (errno 22: Invalid argument) > loop exited with status 67 > > SYZFAIL: ebtable checkpoint: getsockopt(EBT_SO_GET_INIT_INFO) failed > table=broute (errno 22: Invalid argument) > loop exited with status 67 > > > forked to background, child pid 4644 > no interfaces have a carri[ 21.644085][ T4645] 8021q: adding VLAN 0 to HW filter on device bond0 > er > [ 21.654665][ T4645] eql: remember to turn off Van-Jacobson compression on your slave devices > Starting sshd: OK > > syzkaller > Warning: Permanently added '10.128.1.147' (ECDSA) to the list of known hosts. > 2023/02/20 07:39:16 fuzzer started > 2023/02/20 07:39:16 connecting to host at 10.128.0.169:38103 > 2023/02/20 07:39:16 checking machine... > 2023/02/20 07:39:16 checking revisions... > 2023/02/20 07:39:16 testing simple program... > syzkaller login: [ 41.158159][ T5072] cgroup: Unknown subsys name 'net' > [ 41.280558][ T5072] cgroup: Unknown subsys name 'rlimit' > [ 41.458767][ T47] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 > [ 41.466801][ T47] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 > [ 41.474302][ T47] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 > [ 41.482242][ T47] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 > [ 41.489962][ T47] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 > [ 41.497314][ T47] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 > [ 41.575513][ T5074] chnl_net:caif_netlink_parms(): no params data found > [ 41.605498][ T5074] bridge0: port 1(bridge_slave_0) entered blocking state > [ 41.612704][ T5074] bridge0: port 1(bridge_slave_0) entered disabled state > [ 41.621073][ T5074] device bridge_slave_0 entered promiscuous mode > [ 41.629011][ T5074] bridge0: port 2(bridge_slave_1) entered blocking state > [ 41.636311][ T5074] bridge0: port 2(bridge_slave_1) entered disabled state > [ 41.644219][ T5074] device bridge_slave_1 entered promiscuous mode > [ 41.660216][ T5074] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link > [ 41.670509][ T5074] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link > [ 41.687969][ T5074] team0: Port device team_slave_0 added > [ 41.694592][ T5074] team0: Port device team_slave_1 added > [ 41.707841][ T5074] batman_adv: batadv0: Adding interface: batadv_slave_0 > [ 41.714774][ T5074] 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. > [ 41.740979][ T5074] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active > [ 41.753328][ T5074] batman_adv: batadv0: Adding interface: batadv_slave_1 > [ 41.760417][ T5074] 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. > [ 41.786578][ T5074] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active > [ 41.808751][ T5074] device hsr_slave_0 entered promiscuous mode > [ 41.815328][ T5074] device hsr_slave_1 entered promiscuous mode > [ 41.868811][ T5074] netdevsim netdevsim0 netdevsim0: renamed from eth0 > [ 41.878202][ T5074] netdevsim netdevsim0 netdevsim1: renamed from eth1 > [ 41.886794][ T5074] netdevsim netdevsim0 netdevsim2: renamed from eth2 > [ 41.894950][ T5074] netdevsim netdevsim0 netdevsim3: renamed from eth3 > [ 41.910541][ T5074] bridge0: port 2(bridge_slave_1) entered blocking state > [ 41.917682][ T5074] bridge0: port 2(bridge_slave_1) entered forwarding state > [ 41.925140][ T5074] bridge0: port 1(bridge_slave_0) entered blocking state > [ 41.932231][ T5074] bridge0: port 1(bridge_slave_0) entered forwarding state > [ 41.961982][ T5074] 8021q: adding VLAN 0 to HW filter on device bond0 > [ 41.975137][ T5074] 8021q: adding VLAN 0 to HW filter on device team0 > [ 41.982463][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready > [ 41.991359][ T5085] bridge0: port 1(bridge_slave_0) entered disabled state > [ 41.999460][ T5085] bridge0: port 2(bridge_slave_1) entered disabled state > [ 42.007256][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready > [ 42.019018][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready > [ 42.027409][ T22] bridge0: port 1(bridge_slave_0) entered blocking state > [ 42.034725][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state > [ 42.057701][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready > [ 42.066041][ T22] bridge0: port 2(bridge_slave_1) entered blocking state > [ 42.073143][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state > [ 42.081105][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready > [ 42.089690][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready > [ 42.097954][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready > [ 42.105963][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready > [ 42.114939][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready > [ 42.124330][ T5074] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready > [ 42.210712][ T5074] 8021q: adding VLAN 0 to HW filter on device batadv0 > [ 42.218113][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready > [ 42.225438][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready > [ 42.239448][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready > [ 42.253747][ T5074] device veth0_vlan entered promiscuous mode > [ 42.260990][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready > [ 42.269189][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready > [ 42.277611][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready > [ 42.287989][ T5074] device veth1_vlan entered promiscuous mode > [ 42.301815][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready > [ 42.309984][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready > [ 42.318401][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready > [ 42.329281][ T5074] device veth0_macvtap entered promiscuous mode > [ 42.338518][ T5074] device veth1_macvtap entered promiscuous mode > [ 42.350723][ T5074] batman_adv: batadv0: Interface activated: batadv_slave_0 > [ 42.358825][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready > [ 42.368262][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready > [ 42.378872][ T5074] batman_adv: batadv0: Interface activated: batadv_slave_1 > [ 42.386287][ T5086] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready > [ 42.396632][ T5074] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 > [ 42.405419][ T5074] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 > [ 42.414360][ T5074] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 > [ 42.423211][ T5074] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 > [ 42.463113][ T55] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 > [ 42.471160][ T55] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 > [ 42.482258][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready > [ 42.491386][ T55] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 > [ 42.499597][ T55] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 > [ 42.507812][ T5085] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready > executing program > 2023/02/20 07:39:21 SYZFATAL: BUG: program execution failed: executor 0: exit status 67 > SYZFAIL: ebtable checkpoint: getsockopt(EBT_SO_GET_INIT_INFO) failed > table=broute (errno 22: Invalid argument) > loop exited with status 67 > > SYZFAIL: ebtable checkpoint: getsockopt(EBT_SO_GET_INIT_INFO) failed > table=broute (errno 22: Invalid argument) > loop exited with status 67 > [ 46.245969][ T3557] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 > > > 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-build2682014572=/tmp/go-build -gno-record-gcc-switches" > > git status (err=<nil>) > HEAD detached at 851bc19a3 > 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=851bc19a3c4615f6653414b6deec9b9e84c8ca58 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230216-173454'" "-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=851bc19a3c4615f6653414b6deec9b9e84c8ca58 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230216-173454'" "-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=851bc19a3c4615f6653414b6deec9b9e84c8ca58 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20230216-173454'" "-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=\"851bc19a3c4615f6653414b6deec9b9e84c8ca58\" > > > > Tested on: > > commit: 3ac88fa4 Merge tag 'net-6.2-final' of git://git.kernel.. > git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > kernel config: https://syzkaller.appspot.com/x/.config?x=fe56f7d193926860 > dashboard link: https://syzkaller.appspot.com/bug?extid=f61594de72d6705aea03 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > patch: https://syzkaller.appspot.com/x/patch.diff?x=17c96c30c80000 > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/00000000000074a5d005f51cc69c%40google.com. ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <20230219114014.2224-1-hdanton@sina.com>]
* Re: [syzbot] [bridge?] [netfilter?] KASAN: vmalloc-out-of-bounds Read in __ebt_unregister_table [not found] <20230219114014.2224-1-hdanton@sina.com> @ 2023-02-19 11:46 ` syzbot 0 siblings, 0 replies; 6+ messages in thread From: syzbot @ 2023-02-19 11:46 UTC (permalink / raw) To: hdanton, linux-kernel, syzkaller-bugs Hello, syzbot tried to test the proposed patch but the build/boot failed: net/bridge/netfilter/ebtables.c:1215:28: error: passing argument 1 of 'ebt_verify_pointers' from incompatible pointer type [-Werror=incompatible-pointer-types] Tested on: commit: 3ac88fa4 Merge tag 'net-6.2-final' of git://git.kernel.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git dashboard link: https://syzkaller.appspot.com/bug?extid=f61594de72d6705aea03 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=170d73d7480000 ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <20230219071501.2166-1-hdanton@sina.com>]
* Re: [syzbot] [bridge?] [netfilter?] KASAN: vmalloc-out-of-bounds Read in __ebt_unregister_table [not found] <20230219071501.2166-1-hdanton@sina.com> @ 2023-02-19 7:29 ` syzbot 0 siblings, 0 replies; 6+ messages in thread From: syzbot @ 2023-02-19 7:29 UTC (permalink / raw) To: hdanton, linux-kernel, syzkaller-bugs Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: KASAN: vmalloc-out-of-bounds Read in __ebt_unregister_table ================================================================== BUG: KASAN: vmalloc-out-of-bounds in __ebt_unregister_table+0xc00/0xcd0 net/bridge/netfilter/ebtables.c:1175 Read of size 4 at addr ffffc90003755000 by task kworker/u4:2/41 CPU: 0 PID: 41 Comm: kworker/u4:2 Not tainted 6.2.0-rc8-syzkaller-00083-g3ac88fa4605e-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Workqueue: netns cleanup_net Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:306 [inline] print_report+0x15e/0x45d mm/kasan/report.c:417 kasan_report+0xbf/0x1f0 mm/kasan/report.c:517 __ebt_unregister_table+0xc00/0xcd0 net/bridge/netfilter/ebtables.c:1175 ebt_unregister_table+0x35/0x40 net/bridge/netfilter/ebtables.c:1383 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:169 cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:613 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> Memory state around the buggy address: ffffc90003754f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90003754f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc90003755000: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc90003755080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90003755100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ================================================================== Tested on: commit: 3ac88fa4 Merge tag 'net-6.2-final' of git://git.kernel.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=15693b58c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=fe56f7d193926860 dashboard link: https://syzkaller.appspot.com/bug?extid=f61594de72d6705aea03 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=11afbd80c80000 ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <20230218135137.2025-1-hdanton@sina.com>]
* Re: [syzbot] [bridge?] [netfilter?] KASAN: vmalloc-out-of-bounds Read in __ebt_unregister_table [not found] <20230218135137.2025-1-hdanton@sina.com> @ 2023-02-18 14:06 ` syzbot 0 siblings, 0 replies; 6+ messages in thread From: syzbot @ 2023-02-18 14:06 UTC (permalink / raw) To: hdanton, linux-kernel, syzkaller-bugs Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: KASAN: vmalloc-out-of-bounds Read in __ebt_unregister_table ================================================================== BUG: KASAN: vmalloc-out-of-bounds in __ebt_unregister_table+0xf43/0xfc0 net/bridge/netfilter/ebtables.c:1178 Read of size 4 at addr ffffc90003263000 by task kworker/u4:6/3167 CPU: 0 PID: 3167 Comm: kworker/u4:6 Not tainted 6.2.0-rc8-syzkaller-00083-g3ac88fa4605e-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Workqueue: netns cleanup_net Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:306 [inline] print_report+0x15e/0x45d mm/kasan/report.c:417 kasan_report+0xbf/0x1f0 mm/kasan/report.c:517 __ebt_unregister_table+0xf43/0xfc0 net/bridge/netfilter/ebtables.c:1178 ebt_unregister_table+0x35/0x40 net/bridge/netfilter/ebtables.c:1382 ops_exit_list+0xb0/0x170 net/core/net_namespace.c:169 cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:613 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> Memory state around the buggy address: ffffc90003262f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90003262f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc90003263000: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc90003263080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90003263100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ================================================================== Tested on: commit: 3ac88fa4 Merge tag 'net-6.2-final' of git://git.kernel.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=12fc4f6f480000 kernel config: https://syzkaller.appspot.com/x/.config?x=fe56f7d193926860 dashboard link: https://syzkaller.appspot.com/bug?extid=f61594de72d6705aea03 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=173470f0c80000 ^ permalink raw reply [flat|nested] 6+ messages in thread
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[not found] <20230219024213.2103-1-hdanton@sina.com>
2023-02-19 2:57 ` [syzbot] [bridge?] [netfilter?] KASAN: vmalloc-out-of-bounds Read in __ebt_unregister_table syzbot
[not found] <20230220072531.2352-1-hdanton@sina.com>
2023-02-20 7:40 ` syzbot
2023-02-20 7:51 ` Dmitry Vyukov
[not found] <20230219114014.2224-1-hdanton@sina.com>
2023-02-19 11:46 ` syzbot
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2023-02-19 7:29 ` syzbot
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2023-02-18 14:06 ` syzbot
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