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 C96A63BCD2F for ; Thu, 17 Sep 2026 16:36:27 +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=1789662989; cv=none; b=iaBq6l1wg0SRAkigHFxSuLmyV2QVqyyDV6iAf59QZ41/dg9UtBQsOxx1FeQasxEJ/Wqwarzk8e6VMLV9wsUNubxKQo/gNrrlyjheSRUlUkU6gBRzenDrhC5ta0gWwyRyczURQ+n6vYbGXfj49hwLhhn30IOof+EXRYoviZrE6nM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789662989; c=relaxed/simple; bh=nnI595VrSAJCCgex/kXf+MUuAP9uOxU8szkEAGXD1GQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=YWq5tdkMLd5kDQVpyGr3m8Li5ubHf+tNhiojt2S8JVCFeD7foMr2WjwgJjs01ZSI8wwpxvNJVq9UxpfDwJikUBRkVOs1NqI58bs4EeslgKveKLSTTB86cEHxeWSojyKnOdfUSLID3vEG8ABmP/2ySTuU4X8eVqFTydm7xw6WN58= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=2JY/dMqt; 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="2JY/dMqt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2B35D1F000FF; Thu, 17 Sep 2026 16:36:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789662987; bh=Muh7uIMjaHVlXS5Obzmabtk3n2Nkyj+K959XJykpfzI=; h=From:To:Cc:Subject:Date:Reply-To; b=2JY/dMqt5QaWjrFFVHwYpEzvOihbnXkeUA/FkTquxz44NLpkgZokSMFOf8bFF/URk bdNVSL6aOaG1RIsd4foM5nsEXEU/Xq8h8Tow0W5xg4CpLZLrpnCd7z7QQLJ/kVyMds aj+C7X/CAU3DRTnqeIUp+DAJ+YLssgLjzseM8b28= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-93071: media: bcm2835-unicam: Fix asc leaked in error/remove path Date: Thu, 17 Sep 2026 17:15:50 +0100 Message-ID: <2026091739-CVE-2026-93071-e1d4@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=2996; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=7E5+0c0DcCbeDZoR7mC7P9QyLdnCnTGVVl7xAoFMPG0=; b=owGbwMvMwCRo6H6F97bub03G02pJDFlrBA7Xpf0RlWSapKs5PV5KM8oj4vDTDVced89bppTCu qnx/NabHbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjCRpacZFpxb8K9p0vWc5g9S b17uPWisKcG8rZxhfi3DhdmHD8qV7okvDvzxpaTioK2XLAA= 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: media: bcm2835-unicam: Fix asc leaked in error/remove path v4l2_async_nf_add_fwnode_remote() allocates the asc, which is freed when v4l2_async_nf_cleanup() is called. Call v4l2_async_nf_cleanup() properly in the driver paths. Discovered with kmemleak after rmmod: unreferenced object 0xffff000084526b80 (size 64): comm "modprobe", pid 185, jiffies 4295013512 hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 e8 0d ff bf 00 00 ff ff ................ 40 83 bc 84 00 00 ff ff 60 83 bc 84 00 00 ff ff @.......`....... backtrace (crc ac584083): [<00000000ffb081a7>] kmemleak_alloc+0x38/0x44 [<00000000d2fd9301>] __kmalloc+0x1b0/0x250 [<000000004dd5354d>] __v4l2_async_nf_add_fwnode+0x28/0x9c [<0000000067587657>] __v4l2_async_nf_add_fwnode_remote+0x3c/0x64 The Linux kernel CVE team has assigned CVE-2026-93071 to this issue. Affected and fixed versions =========================== Issue introduced in 6.10 with commit 392cd78d495f36c201eb5cc425b01017d493e094 and fixed in 6.12.110 with commit 5479372db364c80bb6bd59f640f5c31de3984bab Issue introduced in 6.10 with commit 392cd78d495f36c201eb5cc425b01017d493e094 and fixed in 6.18.52 with commit 2c29cd408ef86e695acb2a5d4e00fa2f5695368d Issue introduced in 6.10 with commit 392cd78d495f36c201eb5cc425b01017d493e094 and fixed in 7.2.6 with commit de9be39cefda1ecd762e6a913665c01f7bb18100 Issue introduced in 6.10 with commit 392cd78d495f36c201eb5cc425b01017d493e094 and fixed in 7.3-rc1 with commit 253c9659e25131b0169f718e7d094ac1aa0d9279 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-2026-93071 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/media/platform/broadcom/bcm2835-unicam.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/5479372db364c80bb6bd59f640f5c31de3984bab https://git.kernel.org/stable/c/2c29cd408ef86e695acb2a5d4e00fa2f5695368d https://git.kernel.org/stable/c/de9be39cefda1ecd762e6a913665c01f7bb18100 https://git.kernel.org/stable/c/253c9659e25131b0169f718e7d094ac1aa0d9279