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bh=udueFBIM3j5WdgP6Fcf8GFLqeB62jVPjdscuPwIWGqE=; b=XYA2ch4KPEVKKr9CCfKVV/OmcrbSJAKyxGYS8XgJBu0VceJxRGUNIDB0ItSdjEBSUL uvgTdYxCtfJ0BNqGqI+6KaZfmoyoUiL7SP2fEpKY/3qH6nCP0jfCwNtF3VQLbmvyAv// 7qWl+6VJqNGN/mcJFZrdfoA6zggjHFcUzNkrwaqNJMrU/QXLdypM7oiDyyW4zEUJXtao 4UC7jyFo1C673WsmTgfd5xXY68RUQuwmVz0Y2qCuzuc3Pd2ZfNXsI2MWZV0GEXc950Ny r7BoR7yt7GSkxWoYgdAJBpVW6+owL5tqyeGaCCHAvn16pb5jjP9LMKtLq0+ojHduyOsN XymA== X-Gm-Message-State: ACrzQf1e5V5T4Anv2cZ1DkOSuoBmcQllSmtoEo+4Qh2pXxWCTBDtyNAj wjhMMp7KWVs2EkLv/4JgvyRb/1Lnu9/ris31rtqqtg== X-Received: by 2002:a81:1c07:0:b0:358:6e7d:5118 with SMTP id c7-20020a811c07000000b003586e7d5118mr27018934ywc.255.1665577202055; Wed, 12 Oct 2022 05:20:02 -0700 (PDT) MIME-Version: 1.0 References: <000000000000c8900705ead19e41@google.com> In-Reply-To: From: Eric Dumazet Date: Wed, 12 Oct 2022 05:19:50 -0700 Message-ID: Subject: Re: [syzbot] kernel panic: kernel stack overflow To: Dmitry Vyukov , Taehee Yoo Cc: syzbot , =?UTF-8?B?SmnFmcOtIFDDrXJrbw==?= , davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-17.6 required=5.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, ENV_AND_HDR_SPF_MATCH,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, USER_IN_DEF_DKIM_WL,USER_IN_DEF_SPF_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 12, 2022 at 12:53 AM Dmitry Vyukov wrote: > > On Wed, 12 Oct 2022 at 09:48, syzbot > wrote: > > > > Hello, > > > > syzbot found the following issue on: > > > > HEAD commit: bbed346d5a96 Merge branch 'for-next/core' into for-kernelci > > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci > > console output: https://syzkaller.appspot.com/x/log.txt?x=14a03a2a880000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=aae2d21e7dd80684 > > dashboard link: https://syzkaller.appspot.com/bug?extid=60748c96cf5c6df8e581 > > compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 > > userspace arch: arm64 > > > > Unfortunately, I don't have any reproducer for this issue yet. > > > > Downloadable assets: > > disk image: https://storage.googleapis.com/syzbot-assets/11078f50b80b/disk-bbed346d.raw.xz > > vmlinux: https://storage.googleapis.com/syzbot-assets/398e5f1e6c84/vmlinux-bbed346d.xz > > > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > > Reported-by: syzbot+60748c96cf5c6df8e581@syzkaller.appspotmail.com > > +Jiri > > It looks like the issue is with the team device. It seems to call > itself infinitely. > team_device_event was mentioned in stack overflow bugs in the past: > https://groups.google.com/g/syzkaller-bugs/search?q=%22team_device_event%22 > Taehee Yoo, can you take a look ? Patch series of yours was supposed to limit max nest level to 8 https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=65921376425fc9c8b7ce647e1f7989f7cdf5dd70 > > > x8 : 00000000000c008e x7 : ffff80000818cfc0 x6 : 0000000000000000 > > x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 > > x2 : 0000000000000008 x1 : ffff00013e520a60 x0 : ffff00013e520000 > > Kernel panic - not syncing: kernel stack overflow > > CPU: 1 PID: 16874 Comm: syz-executor.3 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 > > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 > > Call trace: > > dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:156 > > show_stack+0x2c/0x54 arch/arm64/kernel/stacktrace.c:163 > > __dump_stack lib/dump_stack.c:88 [inline] > > dump_stack_lvl+0x104/0x16c lib/dump_stack.c:106 > > dump_stack+0x1c/0x58 lib/dump_stack.c:113 > > panic+0x218/0x50c kernel/panic.c:274 > > nmi_panic+0xbc/0xf0 kernel/panic.c:169 > > panic_bad_stack+0x134/0x154 arch/arm64/kernel/traps.c:906 > > handle_bad_stack+0x34/0x48 arch/arm64/kernel/entry-common.c:848 > > __bad_stack+0x78/0x7c arch/arm64/kernel/entry.S:549 > > mark_lock+0x4/0x1b4 kernel/locking/lockdep.c:4593 > > lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666 > > do_write_seqcount_begin_nested include/linux/seqlock.h:516 [inline] > > do_write_seqcount_begin include/linux/seqlock.h:541 [inline] > > psi_group_change+0x128/0x3d0 kernel/sched/psi.c:705 > > psi_task_switch+0x9c/0x310 kernel/sched/psi.c:851 > > psi_sched_switch kernel/sched/stats.h:194 [inline] > > __schedule+0x554/0x5a0 kernel/sched/core.c:6489 > > preempt_schedule_irq+0x64/0x110 kernel/sched/core.c:6806 > > arm64_preempt_schedule_irq arch/arm64/kernel/entry-common.c:265 [inline] > > __el1_irq arch/arm64/kernel/entry-common.c:473 [inline] > > el1_interrupt+0x4c/0x68 arch/arm64/kernel/entry-common.c:485 > > el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:490 > > el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:577 > > arch_local_irq_restore+0x8/0x10 arch/arm64/include/asm/irqflags.h:122 > > lock_is_held include/linux/lockdep.h:283 [inline] > > __might_resched+0x7c/0x218 kernel/sched/core.c:9854 > > __might_sleep+0x48/0x78 kernel/sched/core.c:9821 > > might_alloc include/linux/sched/mm.h:274 [inline] > > slab_pre_alloc_hook mm/slab.h:700 [inline] > > slab_alloc_node mm/slub.c:3162 [inline] > > kmem_cache_alloc_node+0x80/0x370 mm/slub.c:3298 > > __alloc_skb+0xf8/0x378 net/core/skbuff.c:422 > > alloc_skb include/linux/skbuff.h:1257 [inline] > > nlmsg_new include/net/netlink.h:953 [inline] > > genlmsg_new include/net/genetlink.h:410 [inline] > > ethnl_default_notify+0x16c/0x320 net/ethtool/netlink.c:640 > > ethtool_notify+0xb4/0x178 net/ethtool/netlink.c:704 > > ethnl_notify_features net/ethtool/netlink.c:715 [inline] > > ethnl_netdev_event+0x44/0x60 net/ethtool/netlink.c:723 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_compute_features drivers/net/team/team.c:1031 [inline] > > team_device_event+0x1a8/0x25c drivers/net/team/team.c:3024 > > notifier_call_chain kernel/notifier.c:87 [inline] > > raw_notifier_call_chain+0x7c/0x108 kernel/notifier.c:455 > > call_netdevice_notifiers_info net/core/dev.c:1945 [inline] > > call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] > > call_netdevice_notifiers net/core/dev.c:1997 [inline] > > netdev_features_change net/core/dev.c:1315 [inline] > > netdev_sync_lower_features+0x13c/0x21c net/core/dev.c:9599 > > __netdev_update_features+0x284/0xa88 net/core/dev.c:9751 > > netdev_change_features+0x30/0xfc net/core/dev.c:9823 > > team_add_slave+0x7c/0x98 drivers/net/team/team.c:1988 > > do_set_master net/core/rtnetlink.c:2577 [inline] > > do_setlink+0x5f8/0x17a4 net/core/rtnetlink.c:2787 > > __rtnl_newlink net/core/rtnetlink.c:3546 [inline] > > rtnl_newlink+0x988/0xa04 net/core/rtnetlink.c:3593 > > rtnetlink_rcv_msg+0x484/0x82c net/core/rtnetlink.c:6090 > > netlink_rcv_skb+0xe4/0x1d0 net/netlink/af_netlink.c:2501 > > rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6108 > > netlink_unicast_kernel+0xfc/0x1dc net/netlink/af_netlink.c:1319 > > netlink_unicast+0x164/0x248 net/netlink/af_netlink.c:1345 > > netlink_sendmsg+0x484/0x584 net/netlink/af_netlink.c:1921 > > sock_sendmsg_nosec net/socket.c:714 [inline] > > sock_sendmsg net/socket.c:734 [inline] > > ____sys_sendmsg+0x2f8/0x440 net/socket.c:2482 > > ___sys_sendmsg net/socket.c:2536 [inline] > > __sys_sendmsg+0x1ac/0x228 net/socket.c:2565 > > __do_sys_sendmsg net/socket.c:2574 [inline] > > __se_sys_sendmsg net/socket.c:2572 [inline] > > __arm64_sys_sendmsg+0x2c/0x3c net/socket.c:2572 > > __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] > > invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] > > el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 > > do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 > > el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 > > el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 > > el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 > > SMP: stopping secondary CPUs > > Kernel Offset: disabled > > CPU features: 0x00000,02070084,26017203 > > Memory Limit: none > > > > > > --- > > This report is generated by a bot. It may contain errors. > > See https://goo.gl/tpsmEJ for more information about syzbot. > > syzbot engineers can be reached at syzkaller@googlegroups.com. > > > > syzbot will keep track of this issue. See: > > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > > > > -- > > 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/000000000000c8900705ead19e41%40google.com.