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 D903555820F for ; Fri, 11 Sep 2026 19:51:40 +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=1789156312; cv=none; b=YetH4Lwe69YZ7F23JgtGChbn1HthGiBzVVYg2i3tODaBfl0jDlExoiT8C4LQtoXM+qOqvX05PQlkQxNz2Xiz4XI+LrrnOPFdcf2+HwxCIPyQBbaIpavjRZmfwcYlqM1at3pQ2Fqsl7F3Ip1AnK0fb+UAUaAzCrtZry30mtSYES4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789156312; c=relaxed/simple; bh=B5KwXwYhAtcxH7J8nrDgrpWLZpSmw6FiumQFEWuiBRc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Ac2JgaxwXYt9iz5NcXP/kLJF46/N6T+BkiZ+Ma3whQJhBY5ftRahy6zOQ21kcA3dGxb12/7zM7OzdlSuXWKwrX3xXD6dINjpkLwYg5jOlzL6qZhpyJBETqpwUGQ2lH6Tqup3kdAS9PTDYn48OZ4XTz6y6juhE3zbFNQG+k0GmmM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=HG75wEeg; 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="HG75wEeg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1DB4F1F0089B; Fri, 11 Sep 2026 19:51:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789156298; bh=V/ALecAWSVw1NNp/8/mDEHZ59wVycLHyvMsPeEsULck=; h=From:To:Cc:Subject:Date:Reply-To; b=HG75wEegjvK35ekdBqyROgdHVpiY8vqpkD7ew7xJ2PRTcrYXdvx9uGTXy9OkTYZgD TyC6HHkY34pgV8bPVHHNnkQogBM2nPrzyxcA2zDdmBxifS+VGHPldb9GoG92GeXzEc hbcdDQcOiGcZ9gVQNtLGG7N/KqIRxhqXIleUo/+0= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-89469: power: supply: lp8727: fix use-after-free in lp8727_release_irq() Date: Fri, 11 Sep 2026 21:42:38 +0200 Message-ID: <2026091102-CVE-2026-89469-9dbf@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=2836; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=0cYq/g2WDC3FL9c4k9jwzrEnC0HZnRgeTC2ZQZpDUtk=; b=owGbwMvMwCRo6H6F97bub03G02pJDFlLIv0+JU012Bqgn/1l1q1YBwUPXvXlR+L2hs8qsf8i9 XbG062hHbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjARjlsMC7pP3t6rrbPqFYdN 3dqtbF96Wre/1WeY7zO7+8rHwIlGm87PusDmr7XrxJNTOQA= 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: power: supply: lp8727: fix use-after-free in lp8727_release_irq() lp8727_isr_func(), the threaded IRQ handler, is the only caller that arms pchg->work via schedule_delayed_work(). lp8727_release_irq() currently cancels the work before freeing the IRQ, so an IRQ delivered in between can re-arm the work through the threaded handler. After .remove returns the devm layer frees pchg while lp8727_delayed_func() may still run and dereference it. Free the IRQ first so the threaded handler is quiesced and can no longer queue work, then cancel the delayed work to drain the final generation. This issue was found by an in-house static analysis tool. The Linux kernel CVE team has assigned CVE-2026-89469 to this issue. Affected and fixed versions =========================== Issue introduced in 3.7 with commit d71fda01610269e3aaedd451f8d3e34cdf550036 and fixed in 6.12.109 with commit 80d4e40a85ba524e66c8c748aa7bb19eaf2f69df Issue introduced in 3.7 with commit d71fda01610269e3aaedd451f8d3e34cdf550036 and fixed in 6.18.50 with commit ab6b1ad710bed7931540733ce145493fece8ceef Issue introduced in 3.7 with commit d71fda01610269e3aaedd451f8d3e34cdf550036 and fixed in 7.2.4 with commit 6ab3128292df67295de1b2a86f21d89cf6612a7e Issue introduced in 3.7 with commit d71fda01610269e3aaedd451f8d3e34cdf550036 and fixed in 7.3-rc1 with commit ceb6ac43b0f591722401922ceb958ce2616935e0 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-2026-89469 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/power/supply/lp8727_charger.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/80d4e40a85ba524e66c8c748aa7bb19eaf2f69df https://git.kernel.org/stable/c/ab6b1ad710bed7931540733ce145493fece8ceef https://git.kernel.org/stable/c/6ab3128292df67295de1b2a86f21d89cf6612a7e https://git.kernel.org/stable/c/ceb6ac43b0f591722401922ceb958ce2616935e0