| 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-2024-39481: media: mc: Fix graph walk in media_pipeline_start |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| media: mc: Fix graph walk in media_pipeline_start |
| |
| The graph walk tries to follow all links, even if they are not between |
| pads. This causes a crash with, e.g. a MEDIA_LNK_FL_ANCILLARY_LINK link. |
| |
| Fix this by allowing the walk to proceed only for MEDIA_LNK_FL_DATA_LINK |
| links. |
| |
| The Linux kernel CVE team has assigned CVE-2024-39481 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.1 with commit ae219872834a32da88408a92a4b4745c11f5a7ce and fixed in 6.1.94 with commit 788fd0f11e45ae8d3a8ebbd3452a6e83f92db376 |
| Issue introduced in 6.1 with commit ae219872834a32da88408a92a4b4745c11f5a7ce and fixed in 6.6.34 with commit e80d9db99b7b6c697d8d952dfd25c3425cf61499 |
| Issue introduced in 6.1 with commit ae219872834a32da88408a92a4b4745c11f5a7ce and fixed in 6.9.5 with commit bee9440bc0b6b3b7432f7bfde28656262a3484a2 |
| Issue introduced in 6.1 with commit ae219872834a32da88408a92a4b4745c11f5a7ce and fixed in 6.10 with commit 8a9d420149c477e7c97fbd6453704e4612bdd3fa |
| |
| 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-2024-39481 |
| 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/mc/mc-entity.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/788fd0f11e45ae8d3a8ebbd3452a6e83f92db376 |
| https://git.kernel.org/stable/c/e80d9db99b7b6c697d8d952dfd25c3425cf61499 |
| https://git.kernel.org/stable/c/bee9440bc0b6b3b7432f7bfde28656262a3484a2 |
| https://git.kernel.org/stable/c/8a9d420149c477e7c97fbd6453704e4612bdd3fa |
