From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (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 4F69337863 for ; Mon, 18 Dec 2023 14:45:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-7b739032bf6so372379139f.3 for ; Mon, 18 Dec 2023 06:45:27 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702910726; x=1703515526; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=a2hcKBWRTFc8cf/IyxHXD85RGAXgANYdNqTf+HBzUSc=; b=VxeN4c5NWJiFME/purtaHL6QLhlyDenQt9Oz2jz8Yimdi4la8ZKSuiDmoPqyAIgmbF bpgZr2wvGC1vXYx8ATqmOhlpwwf8qDYTb0OXFpLS+S+RTxAQtyUTouCPPzSUdeqS5NiL ZuvzVh/42CXBFnkXzel/FDaY/KZqE54kFLOPsbHYKnRFPKYgn3ey+47HvUqmDPK5+S/3 984AwPSac1iFSIUOI8huCJAOyiW2c9F/ed+Qb6axnjQL4YjYxMclMx1+Gs/2kO4qB3DI 58Nw7pMJYmzJFdCfRt0CzLip93g3fJlgIkpM1d+w1h39aAlnkf5WAqlrGWzJ0jOuherI ITnw== X-Gm-Message-State: AOJu0Ywft2WjMNWzVhaXoEtbG9BBkN6Z4o3kqN174KUa5Z8TbGe6a1XP UnCIxZ601kPC9Qmv0X9EMiyvIUHbzJhXvbEj7+NjKc8IbWIU X-Google-Smtp-Source: AGHT+IF+3JfM2KpBfG5mwHbgX33kDuZ3QGxZ/xIId/aI3wChlRAvI09KcxDkawRCwL2prle+0KFII/bLFY76X3DyMtsbwUUTxVJT Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:12cf:b0:466:509d:18b9 with SMTP id v15-20020a05663812cf00b00466509d18b9mr778357jas.3.1702910726475; Mon, 18 Dec 2023 06:45:26 -0800 (PST) Date: Mon, 18 Dec 2023 06:45:26 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ef958c060cc9cc3d@google.com> Subject: [syzbot] [net?] WARNING in call_rcu (3) From: syzbot To: davem@davemloft.net, edumazet@google.com, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, vinicius.gomes@intel.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: d5b235ec8eab 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=10ee273ae80000 kernel config: https://syzkaller.appspot.com/x/.config?x=f36ea342ce412b14 dashboard link: https://syzkaller.appspot.com/bug?extid=d17177af4afd8c6f804c compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/edab88544ce7/disk-d5b235ec.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2d149255b78d/vmlinux-d5b235ec.xz kernel image: https://storage.googleapis.com/syzbot-assets/c3bfc66db2fc/Image-d5b235ec.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d17177af4afd8c6f804c@syzkaller.appspotmail.com ------------[ cut here ]------------ ODEBUG: activate active (active state 1) object: 000000001b663dc1 object type: rcu_head hint: 0x0 WARNING: CPU: 0 PID: 21462 at lib/debugobjects.c:517 debug_print_object lib/debugobjects.c:514 [inline] WARNING: CPU: 0 PID: 21462 at lib/debugobjects.c:517 debug_object_activate+0x578/0x7e0 lib/debugobjects.c:733 Modules linked in: CPU: 0 PID: 21462 Comm: syz-executor.1 Not tainted 6.7.0-rc5-syzkaller-gd5b235ec8eab #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:514 [inline] pc : debug_object_activate+0x578/0x7e0 lib/debugobjects.c:733 lr : debug_print_object lib/debugobjects.c:514 [inline] lr : debug_object_activate+0x578/0x7e0 lib/debugobjects.c:733 sp : ffff800080007a00 x29: ffff800080007ad0 x28: dfff800000000000 x27: ffff700010000f44 x26: 0000000000000000 x25: ffff0000d99ed500 x24: 0000000000000000 x23: ffff80008a9af3a0 x22: ffff80008ae8cdc0 x21: 0000000000000001 x20: ffff80008a9af3a0 x19: ffff0000d99ed500 x18: ffff800080006ee0 x17: 6364333636623130 x16: ffff80008a77a080 x15: 0000000000000001 x14: 1ffff00010000e5c x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000010205 x10: 0000000000ff0100 x9 : dddee9959d64fa00 x8 : dddee9959d64fa00 x7 : 00000000000310a8 x6 : 0000000000031070 x5 : ffff8000800072f8 x4 : ffff80008e5c8460 x3 : ffff800080366550 x2 : 0000000000000001 x1 : 0000000100010203 x0 : 0000000000000000 Call trace: debug_print_object lib/debugobjects.c:514 [inline] debug_object_activate+0x578/0x7e0 lib/debugobjects.c:733 debug_rcu_head_queue kernel/rcu/rcu.h:227 [inline] __call_rcu_common kernel/rcu/tree.c:2666 [inline] call_rcu+0x48/0xaf4 kernel/rcu/tree.c:2795 switch_schedules net/sched/sch_taprio.c:210 [inline] advance_sched+0x7e0/0xac0 net/sched/sch_taprio.c:984 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x484/0xca0 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x2c0/0xb64 kernel/time/hrtimer.c:1814 timer_handler drivers/clocksource/arm_arch_timer.c:674 [inline] arch_timer_handler_virt+0x74/0x88 drivers/clocksource/arm_arch_timer.c:685 handle_percpu_devid_irq+0x2a4/0x804 kernel/irq/chip.c:942 generic_handle_irq_desc include/linux/irqdesc.h:161 [inline] handle_irq_desc kernel/irq/irqdesc.c:672 [inline] generic_handle_domain_irq+0x7c/0xc4 kernel/irq/irqdesc.c:728 __gic_handle_irq drivers/irqchip/irq-gic-v3.c:782 [inline] __gic_handle_irq_from_irqson drivers/irqchip/irq-gic-v3.c:833 [inline] gic_handle_irq+0x6c/0x190 drivers/irqchip/irq-gic-v3.c:877 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:886 do_interrupt_handler+0xd4/0x138 arch/arm64/kernel/entry-common.c:276 __el1_irq arch/arm64/kernel/entry-common.c:502 [inline] el1_interrupt+0x34/0x68 arch/arm64/kernel/entry-common.c:517 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:522 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:591 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:176 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:196 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] taprio_change+0x335c/0x3c54 net/sched/sch_taprio.c:1993 qdisc_change net/sched/sch_api.c:1387 [inline] tc_modify_qdisc+0x1474/0x1870 net/sched/sch_api.c:1717 rtnetlink_rcv_msg+0x748/0xdbc net/core/rtnetlink.c:6558 netlink_rcv_skb+0x214/0x3c4 net/netlink/af_netlink.c:2545 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6576 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1368 netlink_sendmsg+0x83c/0xb20 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x56c/0x840 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x26c/0x33c net/socket.c:2667 __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2674 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 irq event stamp: 647 hardirqs last enabled at (646): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (646): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (647): [] __el1_irq arch/arm64/kernel/entry-common.c:499 [inline] hardirqs last disabled at (647): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:517 softirqs last enabled at (636): [] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (636): [] __do_softirq+0xac8/0xce4 kernel/softirq.c:582 softirqs last disabled at (640): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (640): [] taprio_change+0x2e44/0x3c54 net/sched/sch_taprio.c:1943 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: active_state active (active state 1) object: 000000001b663dc1 object type: rcu_head hint: 0x0 WARNING: CPU: 0 PID: 21462 at lib/debugobjects.c:517 debug_print_object lib/debugobjects.c:514 [inline] WARNING: CPU: 0 PID: 21462 at lib/debugobjects.c:517 debug_object_active_state+0x2e4/0x414 lib/debugobjects.c:993 Modules linked in: CPU: 0 PID: 21462 Comm: syz-executor.1 Tainted: G W 6.7.0-rc5-syzkaller-gd5b235ec8eab #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:514 [inline] pc : debug_object_active_state+0x2e4/0x414 lib/debugobjects.c:993 lr : debug_print_object lib/debugobjects.c:514 [inline] lr : debug_object_active_state+0x2e4/0x414 lib/debugobjects.c:993 sp : ffff800080007ac0 x29: ffff800080007ad0 x28: ffff80008e4f0000 x27: dfff800000000000 x26: 1fffe0001ab43d28 x25: ffff800092d4d000 x24: 1fffe0001ab43d29 x23: 0000000000000000 x22: ffff0000d99ed500 x21: ffff80008a9af3a0 x20: ffff80008ae8cdc0 x19: 0000000000000001 x18: ffff800080006ee0 x17: 3662313030303030 x16: ffff80008a77a080 x15: 0000000000000001 x14: 1ffff00010000e74 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000010205 x10: 0000000000ff0100 x9 : dddee9959d64fa00 x8 : dddee9959d64fa00 x7 : 0000000000032628 x6 : 00000000000325d0 x5 : ffff8000800073b8 x4 : ffff80008e5c89e8 x3 : ffff800080366550 x2 : 0000000000000001 x1 : 0000000100010203 x0 : 0000000000000000 Call trace: debug_print_object lib/debugobjects.c:514 [inline] debug_object_active_state+0x2e4/0x414 lib/debugobjects.c:993 debug_rcu_head_queue kernel/rcu/rcu.h:228 [inline] __call_rcu_common kernel/rcu/tree.c:2666 [inline] call_rcu+0x60/0xaf4 kernel/rcu/tree.c:2795 switch_schedules net/sched/sch_taprio.c:210 [inline] advance_sched+0x7e0/0xac0 net/sched/sch_taprio.c:984 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x484/0xca0 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x2c0/0xb64 kernel/time/hrtimer.c:1814 timer_handler drivers/clocksource/arm_arch_timer.c:674 [inline] arch_timer_handler_virt+0x74/0x88 drivers/clocksource/arm_arch_timer.c:685 handle_percpu_devid_irq+0x2a4/0x804 kernel/irq/chip.c:942 generic_handle_irq_desc include/linux/irqdesc.h:161 [inline] handle_irq_desc kernel/irq/irqdesc.c:672 [inline] generic_handle_domain_irq+0x7c/0xc4 kernel/irq/irqdesc.c:728 __gic_handle_irq drivers/irqchip/irq-gic-v3.c:782 [inline] __gic_handle_irq_from_irqson drivers/irqchip/irq-gic-v3.c:833 [inline] gic_handle_irq+0x6c/0x190 drivers/irqchip/irq-gic-v3.c:877 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:886 do_interrupt_handler+0xd4/0x138 arch/arm64/kernel/entry-common.c:276 __el1_irq arch/arm64/kernel/entry-common.c:502 [inline] el1_interrupt+0x34/0x68 arch/arm64/kernel/entry-common.c:517 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:522 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:591 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:176 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:196 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] taprio_change+0x335c/0x3c54 net/sched/sch_taprio.c:1993 qdisc_change net/sched/sch_api.c:1387 [inline] tc_modify_qdisc+0x1474/0x1870 net/sched/sch_api.c:1717 rtnetlink_rcv_msg+0x748/0xdbc net/core/rtnetlink.c:6558 netlink_rcv_skb+0x214/0x3c4 net/netlink/af_netlink.c:2545 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6576 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1368 netlink_sendmsg+0x83c/0xb20 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x56c/0x840 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x26c/0x33c net/socket.c:2667 __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2674 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 irq event stamp: 647 hardirqs last enabled at (646): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (646): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (647): [] __el1_irq arch/arm64/kernel/entry-common.c:499 [inline] hardirqs last disabled at (647): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:517 softirqs last enabled at (636): [] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (636): [] __do_softirq+0xac8/0xce4 kernel/softirq.c:582 softirqs last disabled at (640): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (640): [] taprio_change+0x2e44/0x3c54 net/sched/sch_taprio.c:1943 ---[ end trace 0000000000000000 ]--- rcu: __call_rcu_common(): Double-freed CB 000000001b663dc1->taprio_free_sched_cb+0x0/0x178()!!! slab kmalloc-512 start ffff0000d99ed400 pointer offset 256 size 512 --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup