From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from r3-18.sinamail.sina.com.cn (r3-18.sinamail.sina.com.cn [202.108.3.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1A3542FE06F for ; Wed, 12 Nov 2025 11:27:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.108.3.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762946857; cv=none; b=fUgyXoWEuhNvyOa5nafeDFZs6VikLuCaTNnF/hLJqulkbXF6XmOIvF2XwRl5egnWtjpbJ1qTrQNVXJHdbPb0wUlc+Jh/VShmJtwh9Z+eDXfYcU8oHhr+hBQokhwjQf/8Ap+8cD9dk1BTW05qtbGKNf4qq/3TmKbxDKoV2FTtuQ0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762946857; c=relaxed/simple; bh=IkKSbfptNiW91BM06OUzO8qEvxk/nZ+6XUKwR6Zmh24=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cxh+VQYdiVw+gWKTo3655Z3RrS0oelJpw3nR63FQSP4gGFAUeamUxUNzRWpJaeAsQfDzqXa32A+/hMWeuhiQrSRLm4dkXwXVa5RTHuckRELxFYdc9yvHwNHVGCz+S78WTV1XOaBgUyQf+aW1lrM2IDgrm/q3G8eKD/4yhHYIV1Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sina.com; spf=pass smtp.mailfrom=sina.com; dkim=pass (1024-bit key) header.d=sina.com header.i=@sina.com header.b=L1xarU7v; arc=none smtp.client-ip=202.108.3.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sina.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=sina.com header.i=@sina.com header.b="L1xarU7v" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1762946852; bh=YWmos0LZaJQaafwZrux+ArhwVZRFdJfSccimLc6KMBQ=; h=From:Subject:Date:Message-ID; b=L1xarU7vbj89S9NlTaHiYQIeTENuAZsh3+hzbjcsol9cVws+LgNLdlZaU/aqSfZub icy8FfXurXY/YKC6oFT2NpwAZljxpQZrPmKtJH4j0MlhA5MoCAOXfxngyP+GTNvEbm YiluNcw9T/YRRo2wbgHLVAUIT7JvqjzvhnxgjDNs= X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([114.249.57.85]) by sina.com (10.54.253.32) with ESMTP id 69146F1800003F18; Wed, 12 Nov 2025 19:27:23 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com Authentication-Results: sina.com; spf=none smtp.mailfrom=hdanton@sina.com; dkim=none header.i=none; dmarc=none action=none header.from=hdanton@sina.com X-SMAIL-MID: 777804456607 X-SMAIL-UIID: C5777E0D146946EAABCBC88C9E9EE198-20251112-192723-1 From: Hillf Danton To: syzbot Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [hams?] WARNING: ODEBUG bug in handle_softirqs Date: Wed, 12 Nov 2025 19:27:05 +0800 Message-ID: <20251112112714.9203-1-hdanton@sina.com> In-Reply-To: <6914128b.050a0220.417c2.0004.GAE@google.com> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > Date: Tue, 11 Nov 2025 20:52:27 -0800 [thread overview] > syzbot has found a reproducer for the following issue on: > > HEAD commit: 2666975a8905 Add linux-next specific files for 20251111 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=13748212580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=e82ba9dc816af74c > dashboard link: https://syzkaller.appspot.com/bug?extid=60db000b8468baeddbb1 > compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10646b42580000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=133eec12580000 #syz test --- x/net/rose/rose_timer.c +++ y/net/rose/rose_timer.c @@ -180,6 +180,7 @@ static void rose_timer_expiry(struct tim break; case ROSE_STATE_2: /* T3 */ + timer_shutdown_sync(&rose->neighbour->t0timer); rose_neigh_put(rose->neighbour); rose_disconnect(sk, ETIMEDOUT, -1, -1); break; --