From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (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 31B0723ED59 for ; Tue, 10 Dec 2024 18:20:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733854828; cv=none; b=LnePWNd71Sdjc36/rLxcHMVk/7xZlbqjSDHEUOVU3Cego42bfZ6Y90AkmwEe/EHsx8gmrhoWgrwIOu7RBuHQ4SqZxgfTuhPsGZK9XO12F4/Yg6NvBwIhJBy8E/mWPY8a7tJKC3k5c0FscvwLviRRMeNcyoFcDcYfkc6z4suCyT4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733854828; c=relaxed/simple; bh=8X1cBbSjsVYSPA7/TPd/8Ejxj0AiaZ6jDoWQMyiylYk=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=XymHcgCts18BbEsxo9E2ZN5gI1R4PjnGWeB7jUT+r7bgmWKiIF3em+XSin1XQAVrKM0JcjAokpJBovO+2MZpcxNrhnVkc7ci+xpB6YCn1LtMjh1t7PPq7AlPgypN2gCTd0C/2xkF8UaE0TQjR1I0/GRFYpogfnW50bvN7w+mrmA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.207 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-il1-f207.google.com with SMTP id e9e14a558f8ab-3a7cf41b54eso111971555ab.2 for ; Tue, 10 Dec 2024 10:20:26 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733854826; x=1734459626; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=3iz0LvI06t2t+5BKL+U3ZhKEcCP4S3jXRHl4/Yuwiew=; b=okZU6W0hJyzNpe/fF+pZIZrazEdvPZST0gXO6tkPuPcPUIhMIq8DIb8qOMq6zJ8zKI 1iBPQWNzVb7KmsRIwvUoZ1wHmBmvVMikUdVqngMG27tWN5lB/dW5cn+aGEhDBQXeRsx5 dGvdf4nVMwREz7yc8E17rFG/R8eDhFZwX1gk+JlwN+hNVrcBwnjRwlRHl1zHE+TJWYeZ bzpOKH2vS3hQTGWJWOdz7YSYtvUUTIKjz309Sb8uJgTQJQnEiAID9FUutYVsuoihT3BI WbZjxBhMc7yfW2C+7YQ1HdTStO7meQnNCqponRTpyGl5BhKTyw4JInsbJUuAFXrzw2Tc 9i6Q== X-Forwarded-Encrypted: i=1; AJvYcCVonojkRu0u3pnfHnZk37A2WQb8XKAb3gkp4gMRXZLZ4taSC4XUBl3xzmWtBOZU9GLLh5MJX2RNbWYCA1c=@vger.kernel.org X-Gm-Message-State: AOJu0YxL0NdYWc89ZUurnSbqyty5vxYTQsg0oiupgwO/2bQpYiUe5AS7 wJcFPZOMyDNUQ6QW9FMyPCRADaLQX/GfCCBB0aDInw1azLPbPNl81WNnYAhuByDvQ3/XUVEapQE dEIljoHUKX+9CTrFQnysBcTy+CgaxCRkkkSMBoZ0BGHSfsnKCz4EJYyU= X-Google-Smtp-Source: AGHT+IH2RRMbbOZIOE8hFuP0Wd1SNGiEHsu/laAOuXeblnP25CD61Pi1qXmCn2f4vjfiAfGdcy8yjYvlYxl9Z/d52rd01iylXKg0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1547:b0:3a7:6e72:fbb3 with SMTP id e9e14a558f8ab-3a811d774c1mr164591175ab.4.1733854826338; Tue, 10 Dec 2024 10:20:26 -0800 (PST) Date: Tue, 10 Dec 2024 10:20:26 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6758866a.050a0220.a30f1.01d9.GAE@google.com> Subject: [syzbot] [kernel?] KMSAN: uninit-value in timerqueue_add (2) From: syzbot To: anna-maria@linutronix.de, frederic@kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: b8f52214c61a Merge tag 'audit-pr-20241205' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12b6d330580000 kernel config: https://syzkaller.appspot.com/x/.config?x=dcc2c6db74766fbc dashboard link: https://syzkaller.appspot.com/bug?extid=8974d7bf41172a2b0729 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/961b446be7db/disk-b8f52214.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/9f408f31c5b2/vmlinux-b8f52214.xz kernel image: https://storage.googleapis.com/syzbot-assets/97900576aa59/bzImage-b8f52214.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8974d7bf41172a2b0729@syzkaller.appspotmail.com ffff88813fd05fc0: ffff888031cf2978 (0xffff888031cf2978) ffff88813fd05fc8: 0000000000000000 ... ffff88813fd05fe8: ffff888031cf2968 (0xffff888031cf2968) ffff88813fd05ff0: ffffffff8fe8d40e (instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]) ffff88813fd05ff0: ffffffff8fe8d40e (sysvec_apic_timer_interrupt+0x7e/0x90 arch/x86/kernel/apic/apic.c:1049) ffff88813fd05ff8: ffff888031cf2958 (0xffff888031cf2958) BUG: KMSAN: uninit-value in rb_add_cached include/linux/rbtree.h:172 [inline] BUG: KMSAN: uninit-value in timerqueue_add+0x20b/0x3d0 lib/timerqueue.c:40 rb_add_cached include/linux/rbtree.h:172 [inline] timerqueue_add+0x20b/0x3d0 lib/timerqueue.c:40 enqueue_hrtimer+0x189/0x3a0 kernel/time/hrtimer.c:1084 __run_hrtimer kernel/time/hrtimer.c:1756 [inline] __hrtimer_run_queues+0x64d/0xe40 kernel/time/hrtimer.c:1803 hrtimer_interrupt+0x41b/0xb10 kernel/time/hrtimer.c:1865 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0xa7/0x420 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x7e/0x90 arch/x86/kernel/apic/apic.c:1049 Uninit was created at: __alloc_pages_noprof+0x9a7/0xe00 mm/page_alloc.c:4774 alloc_pages_mpol_noprof+0x299/0x990 mm/mempolicy.c:2265 alloc_pages_noprof+0x1bf/0x1e0 mm/mempolicy.c:2344 alloc_slab_page mm/slub.c:2408 [inline] allocate_slab+0x320/0x12e0 mm/slub.c:2574 new_slab mm/slub.c:2627 [inline] ___slab_alloc+0x12ef/0x35e0 mm/slub.c:3815 __slab_alloc mm/slub.c:3905 [inline] __slab_alloc_node mm/slub.c:3980 [inline] slab_alloc_node mm/slub.c:4141 [inline] kmem_cache_alloc_node_noprof+0x84a/0xe00 mm/slub.c:4205 __alloc_skb+0x1e9/0x7b0 net/core/skbuff.c:668 alloc_skb include/linux/skbuff.h:1323 [inline] new_skb+0x46/0x560 drivers/block/aoe/aoecmd.c:66 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:430 [inline] aoecmd_cfg+0x2c0/0xac0 drivers/block/aoe/aoecmd.c:1370 discover_timer+0x62/0x80 drivers/block/aoe/aoemain.c:25 call_timer_fn+0x49/0x580 kernel/time/timer.c:1793 expire_timers kernel/time/timer.c:1844 [inline] __run_timers kernel/time/timer.c:2418 [inline] __run_timer_base+0x84e/0xe90 kernel/time/timer.c:2430 run_timer_base kernel/time/timer.c:2439 [inline] run_timer_softirq+0x3a/0x70 kernel/time/timer.c:2449 handle_softirqs+0x1a0/0x7c0 kernel/softirq.c:554 __do_softirq+0x14/0x1a kernel/softirq.c:588 CPU: 1 UID: 0 PID: 8505 Comm: syz.1.784 Not tainted 6.13.0-rc1-syzkaller-00182-gb8f52214c61a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 ===================================================== --- 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