| 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-2024-40964: ALSA: hda: cs35l41: Possible null pointer dereference in cs35l41_hda_unbind() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ALSA: hda: cs35l41: Possible null pointer dereference in cs35l41_hda_unbind() |
| |
| The cs35l41_hda_unbind() function clears the hda_component entry |
| matching it's index and then dereferences the codec pointer held in the |
| first element of the hda_component array, this is an issue when the |
| device index was 0. |
| |
| Instead use the codec pointer stashed in the cs35l41_hda structure as it |
| will still be valid. |
| |
| The Linux kernel CVE team has assigned CVE-2024-40964 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.6 with commit 7cf5ce66dfda2be444ea668c3d48f732ba4a7fd1 and fixed in 6.6.36 with commit ff27bd8e17884f7cdefecb3f3817caadd6813dc0 |
| Issue introduced in 6.6 with commit 7cf5ce66dfda2be444ea668c3d48f732ba4a7fd1 and fixed in 6.9.7 with commit 19be722369c347f3af1c5848e303980ed040b819 |
| Issue introduced in 6.6 with commit 7cf5ce66dfda2be444ea668c3d48f732ba4a7fd1 and fixed in 6.10 with commit 6386682cdc8b41319c92fbbe421953e33a28840c |
| |
| 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-2024-40964 |
| 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: |
| sound/pci/hda/cs35l41_hda.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/ff27bd8e17884f7cdefecb3f3817caadd6813dc0 |
| https://git.kernel.org/stable/c/19be722369c347f3af1c5848e303980ed040b819 |
| https://git.kernel.org/stable/c/6386682cdc8b41319c92fbbe421953e33a28840c |
