From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793059208; b=HJO+0uGQNbRuE/mNINHcrncVUX+o3p6TecDKrzqHYyxX/T9V3hG+CTB4lRv1Dbr5d5Fa 3MnlG5/CxwbjyuNOAxJPuRaax6AJ2Y7tM1FAXpYob8bVYM/aZ//bfwhfHuYY73mjZZY6P xK4NK62leYdx2ci8IIm5pvC4Z3cW6Ks3M/IMTKObbUVCLBCrconpGubBFtPM+jzCDHSmA hCjEa8OA67ShhWuDu0xtblQJHY2hihDw2wnDIfMXh+mT+6OXeA+eQH362YFBOBLpEikVn XcRid+yxkyFka7MS94d4sTbxM92JiftrA2qRLlSnkDSx35tmpDTql7/nwsWFhr7rXiA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793059208; h=Received:DKIM-Signature:Received:Content-Type:MIME-Version: Content-Transfer-Encoding:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; bh=zm8ylpdcLafJblvCWohl/7MgbUg4kZBMF3/uRyXqqV0=; b=FnH2Ezy0Or8LsdUQN7uu/M8VEd7wIpVLP3gU8Lz3moeVCJ7c84mq6HB6aLqa76DREooU bom+RjMZ8gjUZfIUmS9yke8UMxgJa4XJHP5hUw4ddoB0N8UwYZfzZelQ7TkMNjmV/YkYM JBsGeWYIKosljlnYkdvxz5SKE/QnKLN+3qVCFuWyYandGOkjgKMofjwKK+Y6eGk7GyJsX C4hStNYHL4xMVCmK4O8i6MgG4P5NQrHgyX1TqQ9BZACg/X9smURAiGII2fK9n+jN2qde2 h0nmG8MCn7dYwhHJ6PkeklqNpefUoFSnTT7iMFqIU1P3TUMXJE4H2eV3bGfgeomPHdg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=DCoQ9BOL; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B23B8606A31A for ; Tue, 27 Oct 2026 00:00:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=DCoQ9BOL Received: by smtp.kernel.org (Postfix) with ESMTPSA id D62131F01828; Tue, 27 Oct 2026 00:00:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793059206; bh=zm8ylpdcLafJblvCWohl/7MgbUg4kZBMF3/uRyXqqV0=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=DCoQ9BOLv4ET6bWSw9KXdOTDjAAhZVdGjsbLQptaDcZeazyXxcXz7B+mEUN05vqEr cg3C17gfOdiNHh8BlYawX6UwG5/JenRNEh3KoujViOqSLp2ztDez/wwd6ttzmrusz8 bj+luGdcOfryVpvP7IBmYB1r0Mvl82NwRsDWfPmjhTA6xX8MbAO7vDBIu1F25hg6tL 6BRsHylMwpNi7tlnMp36RnG3cxmaasvm5LWKcQmMzdZd8yagGUL8SjfvcB38dKiKV7 PK653QV21TKiMgBAnV8618yEbJ3tKGG9y2jv64gH2t+SeH0cAvZwxdW9pMTPUjMguP XAkTIyX6au5QQ== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id BE4B63AA80F1; Tue, 27 Oct 2026 00:00:06 +0000 (UTC) Content-Type: text/plain; charset="utf-8" X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net v4] tipc: fix refcount panic in tipc_rcv() when receiving shared skb From: patchwork-bot+netdevbpf@kernel.org Message-Id: <179305920532.3470272.8792419448364439414.git-patchwork-notify@kernel.org> Date: Tue, 27 Oct 2026 00:00:05 +0000 References: <20261023052921.54220-1-tung.quang.nguyen@est.tech> In-Reply-To: <20261023052921.54220-1-tung.quang.nguyen@est.tech> To: Tung Nguyen Cc: netdev@vger.kernel.org, davem@davemloft.net, kuba@kernel.org, edumazet@kernel.org, pabeni@redhat.com, jmaloy@redhat.com, horms@kernel.org, tipc-discussion@lists.sourceforge.net, syzbot+0017742620a9d06f06ef@syzkaller.appspotmail.com, ngocthang2710.1999@gmail.com Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Fri, 23 Oct 2026 12:28:18 +0700 you wrote: > TIPC assumes that the received skb is not shared with other users. > However, syzbot reports a bug triggered by receiving a shared skb: > > ... > RIP: 0010:pskb_expand_head+0x135a/0x13a0 net/core/skbuff.c:2308 > __pskb_pull_tail+0x111/0x1870 net/core/skbuff.c:2890 > skb_cow_data+0x2ed/0xc50 net/core/skbuff.c:5398 > tipc_aead_decrypt net/tipc/crypto.c:892 [inline] > tipc_crypto_rcv+0x346/0x23d0 net/tipc/crypto.c:1843 > tipc_rcv+0x4b7/0x1040 net/tipc/node.c:2119 > tipc_l2_rcv_msg+0x2d9/0x470 net/tipc/bearer.c:669 > deliver_ptype_list_skb net/core/dev.c:2533 [inline] > ... > > [...] Here is the summary with links: - [net,v4] tipc: fix refcount panic in tipc_rcv() when receiving shared skb https://git.kernel.org/netdev/net/c/5308a2049b76 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html