From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (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 14D272AF1B for ; Tue, 12 Nov 2024 12:35:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731414961; cv=none; b=YCz3LpeMZGhks/rSbZryTOeGvprKtXAtrlpBtT4koIasxaCUgF2oMX8n6OKtLH15tTCuY8TeCVXSTYYXn8e5fEBtjYtJNEEzHOSuaXP4giSFR2N3dw9Amxydqt4P3qPvQ8gJLn2f45MPgoICiii2BpperD6Vc/zv+Qhv9VTwpy0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731414961; c=relaxed/simple; bh=TX6nXkG48NPAUvRTtP+52T9qR769R1a2oi79kkdWE8U=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=cybhiCx86nWP4sqAveEY5A0DjgErrib7xbCAITf4Y+AGT1U7Bt805XB2F0a31NMWOoHNkqlxCUQIWEMLVyYZ7Mo6UfMNRbIZF3fVWEo6xJd94bMYNFlC1cSV5gOtipdN7ERQGKFhdD3eiB8cFz6dAiJTifqSnk3YNabnMO2QRiA= 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=209.85.166.199 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-f199.google.com with SMTP id e9e14a558f8ab-3a3c72d4ac4so62038335ab.3 for ; Tue, 12 Nov 2024 04:35:59 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731414959; x=1732019759; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=xntS/3Wne3S8rhOx2uZtXl5NplE/+EkZHaYPSmCvfC8=; b=oJxch1Y4oLcqLhTYn1WlVgDwwNy6rfyxcgnqEDdiE00CaDLXUcdODE4pbaKipe+rYh tEjFrlQ9KIM3xSpY8W13jIwnx772EuwmwOsrL1TIfIJUHFWHuuR6+RYM1ywFj+jUYlFI Xq/hj+w0F+IUDrATYEH4zDWHX84zex4P/tS/lm9/PR0cdjvtFwZ1yy2/rbRc3CA09d2v kX99BmLqoVTBv+DPWYJSz/HJ5AjHtdKFP2fg2Y3joRvUeModdnNq4C5dQGu5GDc1OBNz 8BuDO129IyaHhHa2flVp6BGUjoqiTGs8i4uAYFo1lELa75RfPZUmZyZAvOYdCqq5SGQk jy/w== X-Gm-Message-State: AOJu0YwG56gw66+kdqUFg2OLM2qipZHvBRar7Jzoq/X/T4++ykvYLMI5 NL5Me8AZuGJ0oi/gx8ilxDgIcZpd2n51Q2WBj204jjGLKRtZ+iG0w/VRMphkxOMtBJ2okjL5EVz WXDTW5KUSwQBc46AM1q4C+LnJJKAcvAkn0Zp2GoASkihLBCXAz4DWafs= X-Google-Smtp-Source: AGHT+IGYnQvZQCMk9n5Xo8czgabgVuLdt6H3PXSgPFrgzqL46TcUVxLY4sjO6/ilbD1x35BKLl033gvLwpddjcKYYeHpYVubFfJU Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1ca2:b0:3a4:e62b:4dfd with SMTP id e9e14a558f8ab-3a70c80ee27mr24098545ab.7.1731414959223; Tue, 12 Nov 2024 04:35:59 -0800 (PST) Date: Tue, 12 Nov 2024 04:35:59 -0800 In-Reply-To: <672b9f03.050a0220.350062.0276.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67334baf.050a0220.a0661.041a.GAE@google.com> Subject: Re: [syzbot] Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove Author: lizhi.xu@windriver.com net device has been unregistered, since the rcu grace period it must be run before ieee802154_if_remove #syz test diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c index c0e2da5072be..6f24f1760969 100644 --- a/net/mac802154/iface.c +++ b/net/mac802154/iface.c @@ -684,7 +684,8 @@ void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata) ASSERT_RTNL(); mutex_lock(&sdata->local->iflist_mtx); - list_del_rcu(&sdata->list); + if (!list_empty(&sdata->local->interfaces)) + list_del_rcu(&sdata->list); mutex_unlock(&sdata->local->iflist_mtx); synchronize_rcu();