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 1685120C47A for ; Wed, 26 Feb 2025 02:00:23 +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=1740535223; cv=none; b=J3A5/o9ItO6gCPpMdLZwjFKcCpKzh0i6LHS4BoBoTgSWVIY5lF1LuD+rzNvZlGmCgWzptclHtjKqaAtZUxeoZ1J+KJL1dk+DLiB/GtAWvKK9klQCs/IeyFUh//+TbmM+E5KTbU7GHp8pxnEBmQSFAItijL26MaoUciyg0q97cCI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740535223; c=relaxed/simple; bh=JglMmkQ8zmU+gQ15KCI1M78EnyPnqlWt4AdNAPd8iLU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=j22DHuxjraZEkEqKT57Z8fO5nDTaNLLJzCzszLv6W0Yci2lECb1/ig5yOFHMUSTRrM+RgnX0frGm4bEDuAAm9TZIIu262vJB97xbCk7Y5xFUumalHqju9MpJBBU3ruGjccwUrq8i1/qgStMIbFzVROOHhMxh3zWk6Iq4L6Nj4+U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=oISsdmM/; 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="oISsdmM/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DE797C4CEEB; Wed, 26 Feb 2025 02:00:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1740535223; bh=JglMmkQ8zmU+gQ15KCI1M78EnyPnqlWt4AdNAPd8iLU=; h=From:To:Cc:Subject:Date:Reply-to:From; b=oISsdmM/8wAF7Gftg4FepFOuqSQnQQ/1ct5xsbMCPVFnPOHo1hjOsDtY0tPrjGBBV KeTaZaQM6/hgNpcLI7tcbuBQzG/Arq8LSOWqs2aaicd010UsXkQHDRLfdcwv97y+/c KR0rja4XpZyUgiJdUGlJyTtMH+KjOrm07kA09Tic= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2022-49277: jffs2: fix memory leak in jffs2_do_mount_fs Date: Wed, 26 Feb 2025 02:58:02 +0100 Message-ID: <2025022631-CVE-2022-49277-ff2c@gregkh> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reply-to: , X-Developer-Signature: v=1; a=openpgp-sha256; l=4898; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=JglMmkQ8zmU+gQ15KCI1M78EnyPnqlWt4AdNAPd8iLU=; b=owGbwMvMwCRo6H6F97bub03G02pJDOn7SsIf3pzw+hJ/cJOq+YSHzrc7TyfK5LDy/3VT+6G9t 4r1zRvtjlgWBkEmBlkxRZYv23iO7q84pOhlaHsaZg4rE8gQBi5OAZjI50KG+cHiT9j6nKwsjJfk TJr++dKXsCu+jQwL2p/4JX7j2B/IkLxJhEswO1xpE/NEAA== X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit Description =========== In the Linux kernel, the following vulnerability has been resolved: jffs2: fix memory leak in jffs2_do_mount_fs If jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error, we can observe the following kmemleak report: -------------------------------------------- unreferenced object 0xffff88811b25a640 (size 64): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmem_cache_alloc_trace+0x584/0x880 [] jffs2_sum_init+0x86/0x130 [] jffs2_do_mount_fs+0x798/0xac0 [] jffs2_do_fill_super+0x383/0xc30 [] jffs2_fill_super+0x2ea/0x4c0 [...] unreferenced object 0xffff88812c760000 (size 65536): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) hex dump (first 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ backtrace: [] __kmalloc+0x6b9/0x910 [] jffs2_sum_init+0xd7/0x130 [] jffs2_do_mount_fs+0x798/0xac0 [] jffs2_do_fill_super+0x383/0xc30 [] jffs2_fill_super+0x2ea/0x4c0 [...] -------------------------------------------- This is because the resources allocated in jffs2_sum_init() are not released. Call jffs2_sum_exit() to release these resources to solve the problem. The Linux kernel CVE team has assigned CVE-2022-49277 to this issue. Affected and fixed versions =========================== Issue introduced in 2.6.15 with commit e631ddba588783edd521c5a89f7b2902772fb691 and fixed in 4.9.311 with commit 2a9d8184458562e6bf2f40d0e677fc85e2dd3834 Issue introduced in 2.6.15 with commit e631ddba588783edd521c5a89f7b2902772fb691 and fixed in 4.14.276 with commit 9a0f6610c7daedd2eace430beeb08a8b7ac80699 Issue introduced in 2.6.15 with commit e631ddba588783edd521c5a89f7b2902772fb691 and fixed in 4.19.238 with commit dbe0d0521eaa6a3d235517319266c539bb5c5112 Issue introduced in 2.6.15 with commit e631ddba588783edd521c5a89f7b2902772fb691 and fixed in 5.4.189 with commit 0978e9af4559a171ac7a74a1b3ef21804b0a0fa9 Issue introduced in 2.6.15 with commit e631ddba588783edd521c5a89f7b2902772fb691 and fixed in 5.10.110 with commit 607d3aab7349f18e0d9dba4100d09d16fe27caca Issue introduced in 2.6.15 with commit e631ddba588783edd521c5a89f7b2902772fb691 and fixed in 5.15.33 with commit 4392e8aeebc5a4f8073620bccba7de1b1f6d7c88 Issue introduced in 2.6.15 with commit e631ddba588783edd521c5a89f7b2902772fb691 and fixed in 5.16.19 with commit 5f34310d1376ca5b2ed798258def2c2ab3cc6699 Issue introduced in 2.6.15 with commit e631ddba588783edd521c5a89f7b2902772fb691 and fixed in 5.17.2 with commit c94128470e6fe53d9bd9d16d2d3271813f9d37af Issue introduced in 2.6.15 with commit e631ddba588783edd521c5a89f7b2902772fb691 and fixed in 5.18 with commit d051cef784de4d54835f6b6836d98a8f6935772c 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-2022-49277 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: fs/jffs2/build.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/2a9d8184458562e6bf2f40d0e677fc85e2dd3834 https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699 https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112 https://git.kernel.org/stable/c/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9 https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88 https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699 https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c