From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 50E7A582B97 for ; Fri, 11 Sep 2026 19:50:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789156268; cv=none; b=XBZlC83nrmwn+WNYlVVJDgwNLN3ufk6mTN6kQgrpnoINx1ENdlm1oRqoVJ9pnXIZrPd1HIJvWGEQhHhdnA+zwAdKJdB6JXWDPQMKaEHo8vaftbbTsApfRgfEIsDsKPEBaYHJ2sGfa7gn+eEApHwrT62ynkTJGTKb70/p86yjMfk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789156268; c=relaxed/simple; bh=tssON+M9Q4MqrGa/+HTaCofOMK4WzTY52/RPPjaJjXQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=YLDDXhJH+guhUy1+oHRSQMomqjBrP2zOr7UlbxPF7P97hc9oseQp6Skz9U+5QC/OwnLIapG1/0/9B0VVaDyJNrfS/oCzpc2Lv7AQBE0E59o2UeieuC3/rhCdWEuUjWT9Vk579f7KuJSCwbAUNCPCAmJLeUR975BwtvlX5gKQoJ4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=eivXwK1S; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="eivXwK1S" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C89931F0089C; Fri, 11 Sep 2026 19:50:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789156248; bh=WhNI2Rljb25zOTPLBUNyeXXnWHc9brfsoIxZJAdlvD8=; h=From:To:Cc:Subject:Date:Reply-To; b=eivXwK1SR3ud6UkYhT2B6GU36h0a3FZVPtMdi4QwpCMFYtF9hvdRY+QilLTSDW/XR TJWq2bmrQOxBmhUd5Rdh88IaThkpiB+JuFKKfVU9e8XjJJS/wKwUeMApHKUJISP1bw TH7JyuSEQdoNeylcK30D9r05AhjlPEeFs/dN/dfc= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-89454: PCI: plda: Fix IRQ domain leaks in the error paths of plda_init_interrupts() Date: Fri, 11 Sep 2026 21:42:23 +0200 Message-ID: <2026091159-CVE-2026-89454-8b16@gregkh> X-Mailer: git-send-email 2.55.0 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=3013; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=MP6AjIy6E+8DhDwDd5yIme3cSTfvZHdTsPW+YXsUgDo=; b=owGbwMvMwCRo6H6F97bub03G02pJDFlLIr1jjaz0GC8Wll3jmyUlExkSfGlqceyz5RlCDA8nT vj5gHFiRywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAEzkTzHD/Fies6WMCtW5hZZb u7Lr794+GSHVybCgVf8yv+K9U1IaU0Mk8nffC1OztH4MAA== 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: PCI: plda: Fix IRQ domain leaks in the error paths of plda_init_interrupts() plda_init_interrupts() initializes IRQ domains and creates IRQ mapping but does not unwind them when later step fails. If platform_get_irq() or either irq_create_mapping() fails in plda_init_interrupts(), the domains are never deinitialized. If irq_create_mapping() fails, port->intx_irq stays initialized. Hence, remove the IRQ domains in the error path by calling plda_pcie_irq_domain_deinit(). Since plda_pcie_irq_domain_deinit() now disposes of the intx_irq and msi_irq mappings itself before removing their domains, the msi_irq mapping failure path can go directly to err_irq_domain_deinit instead of disposing of port->intx_irq separately first. This issue was found by automated review of sashiko-bot [mani: commit log] The Linux kernel CVE team has assigned CVE-2026-89454 to this issue. Affected and fixed versions =========================== Issue introduced in 6.11 with commit 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 and fixed in 6.12.109 with commit 01b05cebe1e862e31e382359848d7dca02525a4f Issue introduced in 6.11 with commit 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 and fixed in 6.18.50 with commit 4b575052ea65423693726a21826d783cf3f1745e Issue introduced in 6.11 with commit 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 and fixed in 7.2.4 with commit e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad Issue introduced in 6.11 with commit 4602c370bdf6946b4e954a3db0ef5958aac2b7b4 and fixed in 7.3-rc1 with commit 19a30bbb6477bfd7e3109b7a2943e6597ee9de37 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-2026-89454 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/pci/controller/plda/pcie-plda-host.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/01b05cebe1e862e31e382359848d7dca02525a4f https://git.kernel.org/stable/c/4b575052ea65423693726a21826d783cf3f1745e https://git.kernel.org/stable/c/e54e8d2a0f9c8bf251ae4385ea4f4a68840fedad https://git.kernel.org/stable/c/19a30bbb6477bfd7e3109b7a2943e6597ee9de37