| From bippy-1.1.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2023-53044: dm stats: check for and propagate alloc_percpu failure |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| dm stats: check for and propagate alloc_percpu failure |
| |
| Check alloc_precpu()'s return value and return an error from |
| dm_stats_init() if it fails. Update alloc_dev() to fail if |
| dm_stats_init() does. |
| |
| Otherwise, a NULL pointer dereference will occur in dm_stats_cleanup() |
| even if dm-stats isn't being actively used. |
| |
| The Linux kernel CVE team has assigned CVE-2023-53044 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.12 with commit fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and fixed in 4.14.312 with commit 2287d7b721471a3d58bcd829250336e3cdf1635e |
| Issue introduced in 3.12 with commit fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and fixed in 4.19.280 with commit 0d96bd507ed7e7d565b6d53ebd3874686f123b2e |
| Issue introduced in 3.12 with commit fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and fixed in 5.4.240 with commit 4a32a9a818a895671bd43e0c40351e60e4e9140b |
| Issue introduced in 3.12 with commit fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and fixed in 5.10.177 with commit c68f08cc745675a17894e1b4a5b5b9700ace6da4 |
| Issue introduced in 3.12 with commit fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and fixed in 5.15.105 with commit 443c9d522397511a4328dc2ec3c9c63c73049756 |
| Issue introduced in 3.12 with commit fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and fixed in 6.1.22 with commit a42180dd361584816bfe15c137b665699b994d90 |
| Issue introduced in 3.12 with commit fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and fixed in 6.2.9 with commit 5b66e36a3efd24041b7374432bfa4dec2ff01e95 |
| Issue introduced in 3.12 with commit fd2ed4d252701d3bbed4cd3e3d267ad469bb832a and fixed in 6.3 with commit d3aa3e060c4a80827eb801fc448debc9daa7c46b |
| |
| 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-2023-53044 |
| 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/md/dm-stats.c |
| drivers/md/dm-stats.h |
| drivers/md/dm.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/2287d7b721471a3d58bcd829250336e3cdf1635e |
| https://git.kernel.org/stable/c/0d96bd507ed7e7d565b6d53ebd3874686f123b2e |
| https://git.kernel.org/stable/c/4a32a9a818a895671bd43e0c40351e60e4e9140b |
| https://git.kernel.org/stable/c/c68f08cc745675a17894e1b4a5b5b9700ace6da4 |
| https://git.kernel.org/stable/c/443c9d522397511a4328dc2ec3c9c63c73049756 |
| https://git.kernel.org/stable/c/a42180dd361584816bfe15c137b665699b994d90 |
| https://git.kernel.org/stable/c/5b66e36a3efd24041b7374432bfa4dec2ff01e95 |
| https://git.kernel.org/stable/c/d3aa3e060c4a80827eb801fc448debc9daa7c46b |
