| 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-2024-35919: media: mediatek: vcodec: adding lock to protect encoder context list |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| media: mediatek: vcodec: adding lock to protect encoder context list |
| |
| Add a lock for the ctx_list, to avoid accessing a NULL pointer |
| within the 'vpu_enc_ipi_handler' function when the ctx_list has |
| been deleted due to an unexpected behavior on the SCP IP block. |
| |
| The Linux kernel CVE team has assigned CVE-2024-35919 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.6 with commit 1972e32431ed14682909ad568c6fd660572ae6ab and fixed in 6.6.27 with commit 41671f0c0182b2bae74ca7e3b0f155559e3e2fc5 |
| Issue introduced in 6.6 with commit 1972e32431ed14682909ad568c6fd660572ae6ab and fixed in 6.8.6 with commit 51c84a8aac6e3b59af2b0e92ba63cabe2e641a2d |
| Issue introduced in 6.6 with commit 1972e32431ed14682909ad568c6fd660572ae6ab and fixed in 6.9 with commit afaaf3a0f647a24a7bf6a2145d8ade37baaf75ad |
| |
| 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-2024-35919 |
| 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/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c |
| drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.c |
| drivers/media/platform/mediatek/vcodec/encoder/mtk_vcodec_enc_drv.h |
| drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.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/41671f0c0182b2bae74ca7e3b0f155559e3e2fc5 |
| https://git.kernel.org/stable/c/51c84a8aac6e3b59af2b0e92ba63cabe2e641a2d |
| https://git.kernel.org/stable/c/afaaf3a0f647a24a7bf6a2145d8ade37baaf75ad |
