| 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-2024-50160: ALSA: hda/cs8409: Fix possible NULL dereference |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ALSA: hda/cs8409: Fix possible NULL dereference |
| |
| If snd_hda_gen_add_kctl fails to allocate memory and returns NULL, then |
| NULL pointer dereference will occur in the next line. |
| |
| Since dolphin_fixups function is a hda_fixup function which is not supposed |
| to return any errors, add simple check before dereference, ignore the fail. |
| |
| Found by Linux Verification Center (linuxtesting.org) with SVACE. |
| |
| The Linux kernel CVE team has assigned CVE-2024-50160 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15 with commit 20e507724113300794f16884e7e7507d9b4dec68 and fixed in 5.15.170 with commit 4e19aca8db696b6ba4dd8c73657405e15c695f14 |
| Issue introduced in 5.15 with commit 20e507724113300794f16884e7e7507d9b4dec68 and fixed in 6.1.115 with commit 21dc97d5086fdabbe278786bb0a03cbf2e26c793 |
| Issue introduced in 5.15 with commit 20e507724113300794f16884e7e7507d9b4dec68 and fixed in 6.6.59 with commit 8971fd61210d75fd2af225621cd2fcc87eb1847c |
| Issue introduced in 5.15 with commit 20e507724113300794f16884e7e7507d9b4dec68 and fixed in 6.11.6 with commit a5dd71a8b849626f42d08a5e73d382f2016fc7bc |
| Issue introduced in 5.15 with commit 20e507724113300794f16884e7e7507d9b4dec68 and fixed in 6.12 with commit c9bd4a82b4ed32c6d1c90500a52063e6e341517f |
| |
| 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-2024-50160 |
| 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/patch_cs8409.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/4e19aca8db696b6ba4dd8c73657405e15c695f14 |
| https://git.kernel.org/stable/c/21dc97d5086fdabbe278786bb0a03cbf2e26c793 |
| https://git.kernel.org/stable/c/8971fd61210d75fd2af225621cd2fcc87eb1847c |
| https://git.kernel.org/stable/c/a5dd71a8b849626f42d08a5e73d382f2016fc7bc |
| https://git.kernel.org/stable/c/c9bd4a82b4ed32c6d1c90500a52063e6e341517f |
