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 3113DCCF2C7 for ; Sun, 18 Oct 2026 02:07:51 +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=s0staK1toosvVTYdUZvQImybVckAdiMM5CzJz98ALkE=; b=JKLcMSD0jcSXPFlhewHGihJOnS Ssiu+jWod0ObgdASmbnFNwdsIjYXTq/OsLVfaXbaC6sliINpe2VBGDl4D7BRX0qJ8vdpvdmmOgPAX 6xLglPKhKtPevtDjLGT+Qw7RGpsc/lrV5Mk/9q2ykyL2g3MvhNW67oXgnVzRxBDn56oYaXBFxwTHP 0sN3t8PhEByfzJo5f8NZnV3hvUb0LJ7CsH911eZbn4ZququhJPd9d8KOV75mzsxY9hV7OlnJ32MX4 m91v/0waLvPSrb9kBXDveK5aCJ21WCu6zdgy1/x4Oo0E4q9aFDp+HaJlQnAN0MVp/vKNTaBKGluUD aSk0W9Hg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xIGJB-00000005R2d-28bn; Sun, 18 Oct 2026 02:07:33 +0000 Received: from mail-oi1-f198.google.com ([209.85.167.198]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xIGJ6-00000005R2A-1mrG for linux-arm-kernel@lists.infradead.org; Sun, 18 Oct 2026 02:07:31 +0000 Received: by mail-oi1-f198.google.com with SMTP id 5614622812f47-4dc57e2a3f2so1821411b6e.0 for ; Sat, 17 Oct 2026 19:07:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792289246; x=1792894046; 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=s0staK1toosvVTYdUZvQImybVckAdiMM5CzJz98ALkE=; b=WO6Nk0Oj1GOCPNYBq+GsrJYFWOpFGzpZUCNJrCrNTKvPMhmbMClIn6CNhg5Ucz60JQ Hw42V084qKTMaIorr56bxHHlfaXo5J19n8aQ4rm8BakkfENwXcqKUJIyv914EF1kkvSt RxwyP1+eUjfZVnKqe1gzOVGuioOSAevLlwFDA2P/FiY098uWgYQ4Za05wJQAYx4MR/el xCnHCoB+gmPQP16FSYSb8jpkwi00KszEGY9KSm7OUVw40CkYHB04Lq0MZiE4hilkKRhC ZZbc5GsQM+CuhO7p8L1HjSTwfz3laOAbD/YEOqVXiJG7WxWvgc6IF6K5By5/8zy0X21F KvnQ== X-Gm-Message-State: AFq9FYI4k0V/OmlNrGx1wR4omsb0s0hXmbsA+xpggA2pKdeU9Ocrtvsj hSIFR5epVEGksOlly/QCnF0Efp3P1ww3AIfB6LekpWZyvgXRfGC3cTmVR9dN44WrQipyj4T6VYe w3Fy0w7J2/ju4mWpLCIy+e5zeGqTw6lACykoVqyO5GwQzR9WmKbMYZraFGkE= MIME-Version: 1.0 X-Received: by 2002:a05:6808:199b:b0:4f3:e931:9f27 with SMTP id 5614622812f47-53cd1202ba2mr4493923b6e.53.1792289246314; Sat, 17 Oct 2026 19:07:26 -0700 (PDT) Date: Sat, 17 Oct 2026 19:07:26 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ad429de.7f4e89eb.3d59aa.00a9.GAE@google.com> Subject: [syzbot] [arm?] WARNING in __run_timer_base (3) From: syzbot To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261017_190728_475511_408C23E3 X-CRM114-Status: UNSURE ( 6.58 ) 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: 7a19f0cc94ad 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=128d8121580000 kernel config: https://syzkaller.appspot.com/x/.config?x=26d6221a572842ac dashboard link: https://syzkaller.appspot.com/bug?extid=c4582e7bc680cba1fcfb compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11904895580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=113a2621580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/296cd4b77dbf/disk-7a19f0cc.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e57669ed895f/vmlinux-7a19f0cc.xz kernel image: https://storage.googleapis.com/syzbot-assets/c679c1ad76d4/Image-7a19f0cc.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c4582e7bc680cba1fcfb@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: kernel/time/timer.c:1786 at expire_timers kernel/time/timer.c:1786 [inline], CPU#1: swapper/1/0 WARNING: kernel/time/timer.c:1786 at __run_timers kernel/time/timer.c:2374 [inline], CPU#1: swapper/1/0 WARNING: kernel/time/timer.c:1786 at __run_timer_base+0x598/0x744 kernel/time/timer.c:2386, CPU#1: swapper/1/0 Modules linked in: CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G M syzkaller #0 PREEMPT Tainted: [M]=MACHINE_CHECK Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 pstate: 434000c5 (nZcv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : expire_timers kernel/time/timer.c:1786 [inline] pc : __run_timers kernel/time/timer.c:2374 [inline] pc : __run_timer_base+0x598/0x744 kernel/time/timer.c:2386 lr : expire_timers kernel/time/timer.c:1786 [inline] lr : __run_timers kernel/time/timer.c:2374 [inline] lr : __run_timer_base+0x598/0x744 kernel/time/timer.c:2386 sp : ffff80008f7f7d40 x29: ffff80008f7f7e50 x28: ffff0001a4fdfd00 x27: 0000000000000000 x26: ffff0000c8d96970 x25: 00000000ffff98f0 x24: ffff80008f7f7dc8 x23: ffff0000c8d96988 x22: 1fffe000349fbfa0 x21: 1ffff00011efefb9 x20: dfff800000000000 x19: ffff0001a4fdfcc0 x18: 1fffe000349fbc28 x17: ffff80011b89c000 x16: ffff80008f7f0000 x15: 0000000000000000 x14: 00000000001e00c1 x13: 0000000000000001 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000000003 x9 : 0000000000000102 x8 : 0000000000000000 x7 : ffff8000819951c0 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff800080538560 x2 : 0000000000000002 x1 : ffff0000c1aa8000 x0 : 0000000000000000 Call trace: expire_timers kernel/time/timer.c:1786 [inline] (P) __run_timers kernel/time/timer.c:2374 [inline] (P) __run_timer_base+0x598/0x744 kernel/time/timer.c:2386 (P) run_timer_base+0x84/0x1b8 kernel/time/timer.c:2395 run_timer_softirq+0x20/0x48 kernel/time/timer.c:2405 handle_softirqs+0x324/0xcbc kernel/softirq.c:645 __do_softirq+0x14/0x20 kernel/softirq.c:679 ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:78 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:901 do_softirq_own_stack+0x1c/0x28 arch/arm64/kernel/irq.c:83 invoke_softirq kernel/softirq.c:526 [inline] __irq_exit_rcu+0x10c/0x318 kernel/softirq.c:758 irq_exit_rcu+0x14/0x84 kernel/softirq.c:775 __el1_irq arch/arm64/kernel/entry-common.c:569 [inline] el1_interrupt+0x40/0x60 arch/arm64/kernel/entry-common.c:581 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:586 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:602 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] (P) arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline] (P) default_idle_call+0xa0/0xb8 kernel/sched/idle.c:129 (P) cpuidle_idle_call kernel/sched/idle.c:199 [inline] do_idle+0x1ec/0x450 kernel/sched/idle.c:355 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:454 secondary_start_kernel+0x1d8/0x1fc arch/arm64/kernel/smp.c:275 __secondary_switched+0xc0/0xc4 arch/arm64/kernel/head.S:400 irq event stamp: 286461 hardirqs last enabled at (286460): [] handle_softirqs+0x1e8/0xcbc kernel/softirq.c:629 hardirqs last disabled at (286461): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:163 [inline] hardirqs last disabled at (286461): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:189 softirqs last enabled at (283904): [] softirq_handle_end kernel/softirq.c:491 [inline] softirqs last enabled at (283904): [] handle_softirqs+0xb2c/0xcbc kernel/softirq.c:673 softirqs last disabled at (286459): [] __do_softirq+0x14/0x20 kernel/softirq.c:679 ---[ end trace 0000000000000000 ]--- --- 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