| 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-2022-48739: ASoC: hdmi-codec: Fix OOB memory accesses |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ASoC: hdmi-codec: Fix OOB memory accesses |
| |
| Correct size of iec_status array by changing it to the size of status |
| array of the struct snd_aes_iec958. This fixes out-of-bounds slab |
| read accesses made by memcpy() of the hdmi-codec driver. This problem |
| is reported by KASAN. |
| |
| The Linux kernel CVE team has assigned CVE-2022-48739 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.14 with commit 7a8e1d44211e16eb394b7b9e0b236ee1503a3ad3 and fixed in 5.15.22 with commit 10007bd96b6c4c3cfaea9e76c311b06a07a5e260 |
| Issue introduced in 5.14 with commit 7a8e1d44211e16eb394b7b9e0b236ee1503a3ad3 and fixed in 5.16.8 with commit 1552e66be325a21d7eff49f46013fb402165a0ac |
| Issue introduced in 5.14 with commit 7a8e1d44211e16eb394b7b9e0b236ee1503a3ad3 and fixed in 5.17 with commit 06feec6005c9d9500cd286ec440aabf8b2ddd94d |
| |
| 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-2022-48739 |
| 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: |
| include/uapi/sound/asound.h |
| sound/soc/codecs/hdmi-codec.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/10007bd96b6c4c3cfaea9e76c311b06a07a5e260 |
| https://git.kernel.org/stable/c/1552e66be325a21d7eff49f46013fb402165a0ac |
| https://git.kernel.org/stable/c/06feec6005c9d9500cd286ec440aabf8b2ddd94d |
