From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A7B252F6912; Thu, 30 Oct 2025 10:50:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761821429; cv=none; b=urcdKMYMFPJjzGRLVhu3n0fTjrsP9Oswe80oCo5hKqVDYpamGki69oxdzSX5MHLXDLof1ONL18E8Y26k4NF4SprTbAGtPWZBWn2LwjLm2FYxDNNgLk+4G+NY5Mipdby3rnrSPjsO2K+mbertlw7girK04kfrJuWIJ/MsBYapDZo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761821429; c=relaxed/simple; bh=98kXD/+Z28d/KmYrnZjd8hjURwtKxTpVlrgw3abxKU0=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=HMWfbHBeV1T1meTsEvttNR3ErylqrLjqttscz+WQaVOz3NnpkLVk014l2Vb9nZavG2UckwjPpI1kxz0mAcd6CxOIUR/5/NWD052zmq3ErB+zwT+BKsARJ5c8T9QnIRJmYIviKJD+yzC0PVS1zfuOU/z31UfdfjSIOAci/v6JUi8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DFmtIKw2; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DFmtIKw2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 32CA1C4CEF1; Thu, 30 Oct 2025 10:50:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761821429; bh=98kXD/+Z28d/KmYrnZjd8hjURwtKxTpVlrgw3abxKU0=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=DFmtIKw2czgnewzuT9btvEUV8O1damXZSfOxfwVLDo1ymC9bknvwP/E5mD8of/gEJ wt9/l2VtQ02Ep/WV3dPj2/VYEp//G16kaVPqXQioazFrsZkj9ZO5Nrx+Zqap4j/f+G ZIgJLYTrfGcctwl0kfjao//hqzjTXzkvOcNdohP1Pd14yiLbH/X5LwcMhMmYBQE9xx vWK9F2zbtcNQLSKwpe1FUZn0xsLsdbM1t3DOt4XOSXTS92cgbpR/8HBElmbBcG8yez 9rUTDJYyKlMaM8mI3eZQ3e3T3KRib+DQ1i2fGaZV+khzCNwggMFuevaj5lhXK7G5dv pAef4CqCZvEgw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 33F263A55FB0; Thu, 30 Oct 2025 10:50:07 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH v3] net: sctp: fix KMSAN uninit-value in sctp_inq_pop From: patchwork-bot+netdevbpf@kernel.org Message-Id: <176182140601.3798636.15774437371836976916.git-patchwork-notify@kernel.org> Date: Thu, 30 Oct 2025 10:50:06 +0000 References: <20251026-kmsan_fix-v3-1-2634a409fa5f@gmail.com> In-Reply-To: <20251026-kmsan_fix-v3-1-2634a409fa5f@gmail.com> To: Ranganath V N Cc: marcelo.leitner@gmail.com, lucien.xin@gmail.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, linux-sctp@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, syzbot+d101e12bccd4095460e7@syzkaller.appspotmail.com Hello: This patch was applied to netdev/net.git (main) by Paolo Abeni : On Sun, 26 Oct 2025 22:03:12 +0530 you wrote: > Fix an issue detected by syzbot: > > KMSAN reported an uninitialized-value access in sctp_inq_pop > BUG: KMSAN: uninit-value in sctp_inq_pop > > The issue is actually caused by skb trimming via sk_filter() in sctp_rcv(). > In the reproducer, skb->len becomes 1 after sk_filter(), which bypassed the > original check: > > [...] Here is the summary with links: - [v3] net: sctp: fix KMSAN uninit-value in sctp_inq_pop https://git.kernel.org/netdev/net/c/51e5ad549c43 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html