From bippy-851b3ed3d212 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman To: Reply-to: , Subject: CVE-2021-47037: ASoC: q6afe-clocks: fix reprobing of the driver Description =========== In the Linux kernel, the following vulnerability has been resolved: ASoC: q6afe-clocks: fix reprobing of the driver Q6afe-clocks driver can get reprobed. For example if the APR services are restarted after the firmware crash. However currently Q6afe-clocks driver will oops because hw.init will get cleared during first _probe call. Rewrite the driver to fill the clock data at runtime rather than using big static array of clocks. The Linux kernel CVE team has assigned CVE-2021-47037 to this issue. Affected and fixed versions =========================== Issue introduced in 5.10 with commit 520a1c396d19 and fixed in 5.11.21 with commit 6893df3753be Issue introduced in 5.10 with commit 520a1c396d19 and fixed in 5.12.4 with commit 62413972f526 Issue introduced in 5.10 with commit 520a1c396d19 and fixed in 5.13 with commit 96fadf7e8ff4 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-2021-47037 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/soc/qcom/qdsp6/q6afe-clocks.c sound/soc/qcom/qdsp6/q6afe.c sound/soc/qcom/qdsp6/q6afe.h 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/6893df3753beafa5f7351228a9dd8157a57d7492 https://git.kernel.org/stable/c/62413972f5266568848a36fd15160397b211fa74 https://git.kernel.org/stable/c/96fadf7e8ff49fdb74754801228942b67c3eeebd