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 CF3E22F8E99 for ; Fri, 8 May 2026 14:27:35 +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=1778250455; cv=none; b=iaknvJyC6vi8PAVJsj1EuV1V6qjfJh7i+kG4W5wwPJPlOCcXvyI5S3vg3mdWa9I7V404vXgHXQ9t4J9/538cJtm58wJjkV4+sPF3CE87NBMkTsJ+J0izoNZcarn6bZgQSRC2EpxompXbgIsHVCp9Yc7DPMyCqvzxDboOIOM6clw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778250455; c=relaxed/simple; bh=wr2TG4BTRPPhD6ukjeXAv5+0//2iwMf8Trqk0R1Niwc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=qD3E3WUDxJNTcBlqOE7U7lKH2wUu2mseecZm32qOeUcF1IoeOC/Sa9XJLtSuczVB5+dpXF47+gNkkAoL7Dj03BK2V+SzgKuqIC/OdGhNvjbN0JnOls6CPUWzpJcKiJ7uq7vi9evbRhqhkDp54mueB5Zr2h5X5sgsdxLAyzGdMoE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=wpR10bxP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="wpR10bxP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 656E9C2BCB0; Fri, 8 May 2026 14:27:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778250455; bh=wr2TG4BTRPPhD6ukjeXAv5+0//2iwMf8Trqk0R1Niwc=; h=From:To:Cc:Subject:Date:Reply-To:From; b=wpR10bxPLeJiAWai4vL6dcCJWTVDXpsSKFZk4zznmeVsS4tdMRIFEBbAAmwTcLTxo 2A8j7t2OOPZyu1YUu0hXwWUEx11X44RNK+XAaInVzTLk9b3aFOi/GRkYlTysiaVpPd eGi+3zOSWKpi9Bs/ZNQXsdjyPIJ8r4SEG6GJHSBI= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-43461: spi: amlogic: spifc-a4: Fix DMA mapping error handling Date: Fri, 8 May 2026 16:23:10 +0200 Message-ID: <2026050801-CVE-2026-43461-908f@gregkh> X-Mailer: git-send-email 2.54.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2535; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=g/707MnU5iQc5Trcowuk4vJVm0BF/TiVClqaVUieAOI=; b=owGbwMvMwCRo6H6F97bub03G02pJDJl/P3ayXT81SbU+2XtGseqJ237lu5df5ElY5cLqErV4X arNldqGjlgWBkEmBlkxRZYv23iO7q84pOhlaHsaZg4rE8gQBi5OAZjI/9kM85Mm+Nf4GR/mlSr/ 0vRyaev+BZ/rKhnm++SvZBL8q7dDreJyteAz/mkrQnfvBgA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: spi: amlogic: spifc-a4: Fix DMA mapping error handling Fix three bugs in aml_sfc_dma_buffer_setup() error paths: 1. Unnecessary goto: When the first DMA mapping (sfc->daddr) fails, nothing needs cleanup. Use direct return instead of goto. 2. Double-unmap bug: When info DMA mapping failed, the code would unmap sfc->daddr inline, then fall through to out_map_data which would unmap it again, causing a double-unmap. 3. Wrong unmap size: The out_map_info label used datalen instead of infolen when unmapping sfc->iaddr, which could lead to incorrect DMA sync behavior. The Linux kernel CVE team has assigned CVE-2026-43461 to this issue. Affected and fixed versions =========================== Issue introduced in 6.18 with commit 4670db6f32e9379f5ab6c9bb2a6787cd9b9230a9 and fixed in 6.18.19 with commit 0a83d6c9e149a176340190fa9cbadf2266db4c9a Issue introduced in 6.18 with commit 4670db6f32e9379f5ab6c9bb2a6787cd9b9230a9 and fixed in 6.19.9 with commit c0b88f1176074f80140ed77fce909f254b7180ab Issue introduced in 6.18 with commit 4670db6f32e9379f5ab6c9bb2a6787cd9b9230a9 and fixed in 7.0 with commit b20b437666e1cb26a7c499d1664e8f2a0ac67000 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-43461 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/spi/spi-amlogic-spifc-a4.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/0a83d6c9e149a176340190fa9cbadf2266db4c9a https://git.kernel.org/stable/c/c0b88f1176074f80140ed77fce909f254b7180ab https://git.kernel.org/stable/c/b20b437666e1cb26a7c499d1664e8f2a0ac67000