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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D1FC3CDB482 for ; Wed, 18 Oct 2023 02:09:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229483AbjJRCJK (ORCPT ); Tue, 17 Oct 2023 22:09:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35824 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229453AbjJRCJJ (ORCPT ); Tue, 17 Oct 2023 22:09:09 -0400 Received: from mail-oo1-f78.google.com (mail-oo1-f78.google.com [209.85.161.78]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C88E2F7 for ; Tue, 17 Oct 2023 19:09:06 -0700 (PDT) Received: by mail-oo1-f78.google.com with SMTP id 006d021491bc7-581ead8a0deso943338eaf.3 for ; Tue, 17 Oct 2023 19:09:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697594946; x=1698199746; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=rQ7FtIypEQj/f0AClAakDsoov2FH7bW4DoRItDFF3Y4=; b=dNHw5C7MXCcx5GT2dbRfbd1aSBYpD7qI3N19fnm+mZ0+91U517eg9KXl34kSDU4dAk J6X+UJaMzrlBaVzyQKI5rNzgwcpZJCdKZqGh8Mu3yfGHqGUI6+CtxZyShVLKpDcaTDZH TLv4PsKl5xSydqrokI9L+5yPkXjDT0yb5CN5/sdg1rKBWFiSbjrIuLS3Rf/eh/jSwg+m z8JhI4RUmigJubK++MWvL+3I70IO+0oF+SdDp9HuRfgiv7v7fb680ClfJhXKGDzE7HB1 /uAT56eestWt490KLLmBdKFkxqYi37evmVGI7Ixbi+uZP6UcyQbBWVq+ASuyBmJCHFOc PJ4g== X-Gm-Message-State: AOJu0Yw6rMtV6murx6aiCuw0r9QfGWzeeDwOVWCoSy/XMMwSUjMWohQw Jc80XVKDGsIuNOe1TWMkH8TzBfJh+eBb5jZpQYl6qA1MPaid X-Google-Smtp-Source: AGHT+IF55VEEnFC9axfjk4buoZPO8zoDFpjn6naxOcQfT0tnl8TKXXtSXnbzJyx64tdTShwDxZVJapPsQWtI/XcnD1cd29vZaMBQ MIME-Version: 1.0 X-Received: by 2002:a05:6870:3282:b0:1d6:5e45:3bc7 with SMTP id q2-20020a056870328200b001d65e453bc7mr1646497oac.5.1697594946128; Tue, 17 Oct 2023 19:09:06 -0700 (PDT) Date: Tue, 17 Oct 2023 19:09:06 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bc90a60607f41fc3@google.com> Subject: [syzbot] [mm?] [kasan?] WARNING in __kfence_free (3) From: syzbot To: akpm@linux-foundation.org, dvyukov@google.com, elver@google.com, glider@google.com, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 213f891525c2 Merge tag 'probes-fixes-v6.6-rc6' of git://gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14a731f9680000 kernel config: https://syzkaller.appspot.com/x/.config?x=a4436b383d761e86 dashboard link: https://syzkaller.appspot.com/bug?extid=59f37b0ab4c558a5357c compiler: aarch64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0, 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 (non-bootable): https://storage.googleapis.com/syzbot-assets/384ffdcca292/non_bootable_disk-213f8915.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/98b9a78b6226/vmlinux-213f8915.xz kernel image: https://storage.googleapis.com/syzbot-assets/8ed2ef54968f/Image-213f8915.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+59f37b0ab4c558a5357c@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 3252 at mm/kfence/core.c:1147 __kfence_free+0x7c/0xb4 mm/kfence/core.c:1147 Modules linked in: CPU: 1 PID: 3252 Comm: syz-executor.1 Not tainted 6.6.0-rc6-syzkaller-00029-g213f891525c2 #0 Hardware name: linux,dummy-virt (DT) pstate: 81400009 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : __kfence_free+0x7c/0xb4 mm/kfence/core.c:1147 lr : kfence_free include/linux/kfence.h:187 [inline] lr : __slab_free+0x48c/0x508 mm/slub.c:3614 sp : ffff800082cebb50 x29: ffff800082cebb50 x28: f7ff000002c0c400 x27: ffff8000818ca8a8 x26: ffff8000821f0620 x25: 0000000000000001 x24: ffff00007ffa3000 x23: 0000000000000001 x22: ffff00007ffa3000 x21: ffff00007ffa3000 x20: ffff80008004191c x19: fffffc0001ffe8c0 x18: ffffffffffffffff x17: ffff800080027b40 x16: ffff800080027a34 x15: ffff800080318514 x14: ffff8000800469c8 x13: ffff800080011558 x12: ffff800081897ff4 x11: ffff800081897b28 x10: ffff800080027bfc x9 : 0000000000400cc0 x8 : ffff800082cebc30 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff80008004191c x4 : ffff00007f869000 x3 : ffff800082420338 x2 : fcff000006a24ec0 x1 : ffff00007f8a50a0 x0 : ffff00007ffa3000 Call trace: __kfence_free+0x7c/0xb4 mm/kfence/core.c:1147 kfence_free include/linux/kfence.h:187 [inline] __slab_free+0x48c/0x508 mm/slub.c:3614 do_slab_free mm/slub.c:3757 [inline] slab_free mm/slub.c:3810 [inline] __kmem_cache_free+0x220/0x230 mm/slub.c:3822 kfree+0x5c/0x74 mm/slab_common.c:1072 kvm_uevent_notify_change.part.0+0x10c/0x174 arch/arm64/kvm/../../../virt/kvm/kvm_main.c:5908 kvm_uevent_notify_change arch/arm64/kvm/../../../virt/kvm/kvm_main.c:5878 [inline] kvm_dev_ioctl_create_vm arch/arm64/kvm/../../../virt/kvm/kvm_main.c:5107 [inline] kvm_dev_ioctl+0x3e8/0x91c arch/arm64/kvm/../../../virt/kvm/kvm_main.c:5131 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0xac/0xf0 fs/ioctl.c:857 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:51 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:136 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:155 el0_svc+0x40/0x114 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:595 ---[ 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 bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup