From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (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 3FCAA70830 for ; Tue, 12 Nov 2024 13:11:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731417109; cv=none; b=g0uChKjWjzUdRR3PW147iCdNiiGdIjfiTlw/Ysgxw1o10eNFDLBnuCf0c20UKyN0q6sZUO28dgsbdiwLetTxWy1V+hVIIE9exvQ4QCbaaVVAgxzQUqEF+Z2l52axFWaXO2JDMNgDySvzGhfPjifCEtzfH4Oxo9XGgxRH5MMOGAY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731417109; c=relaxed/simple; bh=2PYHYjLp4KHlBdgADutQ7RkXw8pPJl16GVk4cd7tnBk=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=cBwVgJzA4/nZv9Mdf3YSW8s3OETsEGwOoDDkSd+FtoV/RjPhE20233MTCdh1NNlxkCNpt2VWamvc8IndR7GXeK78fDhkw3szxX9vtxdWRGQvo/jYqzx9LsllJ8w7kVY07PC34RZSJJVwziacNQhOZa2KO82cCzDGtQ3Ms54ydE8= 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=209.85.166.72 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-io1-f72.google.com with SMTP id ca18e2360f4ac-83aecd993faso568873039f.0 for ; Tue, 12 Nov 2024 05:11:48 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731417107; x=1732021907; 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=Lk0xfPNXPphQ0nfUKgSqJXWmAOdIT/K1cSorCiPLDfI=; b=K2hWTqbBGrVZu/m5M26ZsUTmB0bAdOxQS9XFgvIH69FWJh6yYnoqs0nPwLCp7akftu mTg+AkW+Ky0foccUwbnRIG0jnnQ5AZuSQofHS2zVCPl2XoingjVrAa5MwG8VcTPmnVvQ Ym1QoJ1f2RKe7VGDocsBwBYjd7OakDvrphxpFyWzOHgCYWLt7cgqrJzd8nyFoIojTr+2 O7zoPkFmHt+zhuZSctpGRlhqs3tZKHB4w71c4twHNdQboOFFRD3PicAEZc/urkpfKL4D /tGCarRAi8ft+PgT2jZQkYHZwTqSFb63R21dNXg460UHob+oBdYDQjpqsue0yW6Hxrpr 14yw== X-Gm-Message-State: AOJu0YxNyEEl0IkmC54sMs/taWKezCxWVtSfTpjGBEtuU296tAeuPofK a+6y7VH52nhWJqvgFrNtAZGlxAlnddFGlN+dc7wtE+0XFQ2u10oMy2ycc5E88tBkUq/w4lwMVVE lf2HE2BGxqOv6jVHFk7IvjfnT0o5wMfH7CJY0sQCGvU/IzldBnBieTbo= X-Google-Smtp-Source: AGHT+IE7KxGxtUCligeJxEW/9Iw6DW91kLeuX+fiqzie2eqvEG9IE55xEbGbmGYh4KteuTvfDzETd1T1P7LsAgJXq6yYwUCS7vVK Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3a85:b0:3a6:abb0:59a0 with SMTP id e9e14a558f8ab-3a6f23b7163mr149792335ab.0.1731417107367; Tue, 12 Nov 2024 05:11:47 -0800 (PST) Date: Tue, 12 Nov 2024 05:11:47 -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: <67335413.050a0220.a0661.041c.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..9e4631fade90 100644 --- a/net/mac802154/iface.c +++ b/net/mac802154/iface.c @@ -684,6 +684,10 @@ void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata) ASSERT_RTNL(); mutex_lock(&sdata->local->iflist_mtx); + if (list_empty(&sdata->local->interfaces)) { + mutex_unlock(&sdata->local->iflist_mtx); + return; + } list_del_rcu(&sdata->list); mutex_unlock(&sdata->local->iflist_mtx);