From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F125EC53219 for ; Wed, 29 Jul 2026 00:08:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:To:From:Subject :Message-ID:Date:MIME-Version:Reply-To:Cc:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=j8PbTbY2wedKvmEe4vPFLG8ALhOZp0GgcpYiFZK/Frc=; b=kgFQRrBmTAf2vsnZCtsiF1f3dg 90EC7fSOPedewVdvazDL8JrlabTeDSYh1BQV6sPu0PqiZ1h/V+dlCHGp3h2Ir0/wxUfGs8905wSZt /B0FaaVefJ/65hkAB4y5gSTzOPvXjFeSEeCG8b0/CwQYL7S1lhLfPr/9ysq0u9xahK5sw8KHtWUGd WTdIgFg1V9Aiv7VujgYdSVNZ4+16sLx2PejoNNXwusA/CZNo/1L55Wya9bSxgtZ8LtLZFC6qIKtwN OIHWm3WJbxBZb8YCSBFB/+jT7hPuNVL3klSjqcRxRy0QE/NNNJZ7zKqcvASjwAyOVQCBlYree3cun 9e0fXCeA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1worqe-00000006VIx-3pHn; Wed, 29 Jul 2026 00:08:36 +0000 Received: from mail-ot1-f79.google.com ([209.85.210.79]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1worqb-00000006VIc-3JSV for linux-arm-kernel@lists.infradead.org; Wed, 29 Jul 2026 00:08:35 +0000 Received: by mail-ot1-f79.google.com with SMTP id 46e09a7af769-7eb6a8c61deso328601a34.3 for ; Tue, 28 Jul 2026 17:08:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785283711; x=1785888511; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=j8PbTbY2wedKvmEe4vPFLG8ALhOZp0GgcpYiFZK/Frc=; b=sU6vE8uvqmQjLFw5dBoZcAX9c7CGLJDGw3MqtUAuPkunW+SAnbDe9ObhIAdbaWRQbO +czOu0uaZ82mTVgRkDjSAhfzAyxKllCLSo9A8xgEaJXnp/TX/fDze9pSZXAUNX+LrqvZ eCop/vV6SfmW6ccIe3Jt2HFMAqG/upA0X/cvqAbZl/puQTHsdyfIUltA9HYMCbAUYWMD AW+jR5APg2xFKH+nyyy+XREJKg0H+xMctWHUZs3WBEVi113K9Rfx4opErQG86IUtTJjZ RJ1QAlvFZOYjSrVJCq931kKE39/WPl9sswtP1NMCqEVThKye6tJDVjqJZOtb3CXUVw/3 57Ow== X-Gm-Message-State: AOJu0YzMxrEsXxtvNUcwhHgtrrVrX5WEx9HgyPFhzQJWMN7XCLYdtiY4 QZJcyFWhM48iFRVlmel413A4ILPJ/+Cqk+oeuMOjfGXJN22DO1yGVPjimB8nhqqofvpENf+8TCH neWYVhCqNuV+ZlGSx2fAx5obg8kESrzsOHnI0uOmP0ZxYtioBDVbzqr2eECsojQ== MIME-Version: 1.0 X-Received: by 2002:a05:6808:144a:b0:495:28f0:7d with SMTP id 5614622812f47-4ad5bd567ebmr2574834b6e.33.1785283711326; Tue, 28 Jul 2026 17:08:31 -0700 (PDT) Date: Tue, 28 Jul 2026 17:08:31 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a69447f.6bd615f2.c0aa.0002.GAE@google.com> Subject: [syzbot] [kernel?] WARNING in its_msi_teardown From: syzbot To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, maz@kernel.org, syzkaller-bugs@googlegroups.com, tglx@kernel.org Content-Type: text/plain; charset="UTF-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260728_170833_899841_EE009372 X-CRM114-Status: UNSURE ( 8.61 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hello, syzbot found the following issue on: HEAD commit: b66b0005b6ce Merge branches 'for-next/fixes' and 'for-next.. 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=15f7d746580000 kernel config: https://syzkaller.appspot.com/x/.config?x=72c97575381cec47 dashboard link: https://syzkaller.appspot.com/bug?extid=229d761b8a110e6de517 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1667e09e580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17525fde580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/63e3226301fe/disk-b66b0005.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b268844cbd22/vmlinux-b66b0005.xz kernel image: https://storage.googleapis.com/syzbot-assets/9440dfc93d1e/Image-b66b0005.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+229d761b8a110e6de517@syzkaller.appspotmail.com el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 ------------[ cut here ]------------ WARNING: drivers/irqchip/irq-gic-v3-its.c:2251 at its_lpi_free drivers/irqchip/irq-gic-v3-its.c:2251 [inline], CPU#0: syz.0.18/4916 WARNING: drivers/irqchip/irq-gic-v3-its.c:2251 at its_msi_teardown+0x3a4/0x424 drivers/irqchip/irq-gic-v3-its.c:3644, CPU#0: syz.0.18/4916 Modules linked in: CPU: 0 UID: 0 PID: 4916 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : its_lpi_free drivers/irqchip/irq-gic-v3-its.c:2251 [inline] pc : its_msi_teardown+0x3a4/0x424 drivers/irqchip/irq-gic-v3-its.c:3644 lr : its_lpi_free drivers/irqchip/irq-gic-v3-its.c:2251 [inline] lr : its_msi_teardown+0x3a4/0x424 drivers/irqchip/irq-gic-v3-its.c:3644 sp : ffff800098017560 x29: ffff8000980175f0 x28: ffff0000cfc75930 x27: 1fffe00019f8eb26 x26: 1fffe00019f8eb22 x25: ffff0000c13e1000 x24: dfff800000000000 x23: ffff700013002eac x22: 00000000fffffff4 x21: ffff800098017580 x20: ffff0000c1e07ce0 x19: ffff0000cfc75900 x18: 00000000ffffffff x17: 70202c31206c6176 x16: 0000000000000001 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000003 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 00000000ffffffff x4 : 0000000000000cc0 x3 : ffff800081ba1c7c x2 : 00000000fffffff4 x1 : ffff0000cfb10000 x0 : 0000000000000000 Call trace: its_lpi_free drivers/irqchip/irq-gic-v3-its.c:2251 [inline] (P) its_msi_teardown+0x3a4/0x424 drivers/irqchip/irq-gic-v3-its.c:3644 (P) its_msi_teardown+0xa0/0xb8 drivers/irqchip/irq-gic-its-msi-parent.c:249 msi_remove_device_irq_domain+0x16c/0x27c kernel/irq/msi.c:1127 msi_device_data_release+0x38/0x9c kernel/irq/msi.c:293 dr_node_release+0x4c/0x5c drivers/base/devres.c:122 release_nodes+0xac/0x108 drivers/base/devres.c:546 devres_release_all+0x138/0x1a4 drivers/base/devres.c:576 device_unbind_cleanup+0x80/0x1c8 drivers/base/dd.c:597 __device_release_driver drivers/base/dd.c:1354 [inline] device_release_driver_internal+0x19c/0x20c drivers/base/dd.c:1372 device_release_driver+0x28/0x38 drivers/base/dd.c:1395 pci_stop_dev drivers/pci/remove.c:27 [inline] pci_stop_bus_device+0x108/0x14c drivers/pci/remove.c:93 pci_stop_and_remove_bus_device+0x84/0xd0 drivers/pci/remove.c:128 pci_stop_and_remove_bus_device_locked+0x24/0x38 drivers/pci/remove.c:136 remove_store+0xdc/0x148 drivers/pci/pci-sysfs.c:523 dev_attr_store+0x6c/0x90 drivers/base/core.c:2505 sysfs_kf_write+0xe0/0x108 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x260/0x3b8 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x51c/0xa0c fs/read_write.c:687 ksys_write+0x12c/0x228 fs/read_write.c:739 __do_sys_write fs/read_write.c:750 [inline] __se_sys_write fs/read_write.c:747 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:747 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:736 el0t_64_sync_handler+0x48/0x148 arch/arm64/kernel/entry-common.c:755 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594 irq event stamp: 1608 hardirqs last enabled at (1607): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (1607): [] arm64_exit_to_kernel_mode+0x80/0x94 arch/arm64/kernel/entry-common.c:62 hardirqs last disabled at (1608): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:425 softirqs last enabled at (1528): [] __alloc_skb+0x1c0/0x610 net/core/skbuff.c:698 softirqs last disabled at (1526): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (1526): [] __alloc_skb+0x1a8/0x610 net/core/skbuff.c:697 ---[ end trace 0000000000000000 ]--- pci 0000:00:01.0: [1af4:1005] type 00 class 0x00ff00 conventional PCI endpoint pci 0000:00:01.0: BAR 0 [io 0x1000-0x101f] pci 0000:00:01.0: BAR 1 [mem 0x10110080-0x101100bf] pci 0000:00:01.0: BAR 1 [mem 0x10110080-0x101100bf]: assigned pci 0000:00:01.0: BAR 0 [io 0x1000-0x101f]: assigned virtio-pci 0000:00:01.0: virtio_pci: leaving for legacy driver --- 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 syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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