| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2023-52841: media: vidtv: mux: Add check and kfree for kstrdup |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| media: vidtv: mux: Add check and kfree for kstrdup |
| |
| Add check for the return value of kstrdup() and return the error |
| if it fails in order to avoid NULL pointer dereference. |
| Moreover, use kfree() in the later error handling in order to avoid |
| memory leak. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52841 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.10 with commit c2f78f0cb294aa6f009d3a170f4ee8ad199ba5da and fixed in 5.10.201 with commit 64863ba8e6b7651d994c6e6d506cc8aa2ac45edb |
| Issue introduced in 5.10 with commit c2f78f0cb294aa6f009d3a170f4ee8ad199ba5da and fixed in 5.15.139 with commit 980be4c3b0d51c0f873fd750117774561c66cf68 |
| Issue introduced in 5.10 with commit c2f78f0cb294aa6f009d3a170f4ee8ad199ba5da and fixed in 6.1.63 with commit a254ee1ddc592ae1efcce96b8c014e1bd2d5a2b4 |
| Issue introduced in 5.10 with commit c2f78f0cb294aa6f009d3a170f4ee8ad199ba5da and fixed in 6.5.12 with commit cb13001411999adb158b39e76d94705eb2da100d |
| Issue introduced in 5.10 with commit c2f78f0cb294aa6f009d3a170f4ee8ad199ba5da and fixed in 6.6.2 with commit aae7598aff291d4d140be1355aa20930af948785 |
| Issue introduced in 5.10 with commit c2f78f0cb294aa6f009d3a170f4ee8ad199ba5da and fixed in 6.7 with commit 1fd6eb12642e0c32692924ff359c07de4b781d78 |
| |
| 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-2023-52841 |
| 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/test-drivers/vidtv/vidtv_mux.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/64863ba8e6b7651d994c6e6d506cc8aa2ac45edb |
| https://git.kernel.org/stable/c/980be4c3b0d51c0f873fd750117774561c66cf68 |
| https://git.kernel.org/stable/c/a254ee1ddc592ae1efcce96b8c014e1bd2d5a2b4 |
| https://git.kernel.org/stable/c/cb13001411999adb158b39e76d94705eb2da100d |
| https://git.kernel.org/stable/c/aae7598aff291d4d140be1355aa20930af948785 |
| https://git.kernel.org/stable/c/1fd6eb12642e0c32692924ff359c07de4b781d78 |
