From bippy-d175d3acf727 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman To: Reply-to: , Subject: CVE-2024-27051: cpufreq: brcmstb-avs-cpufreq: add check for cpufreq_cpu_get's return value Description =========== In the Linux kernel, the following vulnerability has been resolved: cpufreq: brcmstb-avs-cpufreq: add check for cpufreq_cpu_get's return value cpufreq_cpu_get may return NULL. To avoid NULL-dereference check it and return 0 in case of error. Found by Linux Verification Center (linuxtesting.org) with SVACE. The Linux kernel CVE team has assigned CVE-2024-27051 to this issue. Affected and fixed versions =========================== Issue introduced in 4.10 with commit de322e085995 and fixed in 5.10.214 with commit 9127599c075c Issue introduced in 4.10 with commit de322e085995 and fixed in 5.15.153 with commit d951cf510fb0 Issue introduced in 4.10 with commit de322e085995 and fixed in 6.1.83 with commit e72160cb6e23 Issue introduced in 4.10 with commit de322e085995 and fixed in 6.6.23 with commit b25b64a241d7 Issue introduced in 4.10 with commit de322e085995 and fixed in 6.7.11 with commit 74b84d0d7118 Issue introduced in 4.10 with commit de322e085995 and fixed in 6.8.2 with commit e6e3e51ffba0 Issue introduced in 4.10 with commit de322e085995 and fixed in 6.9 with commit f661017e6d32 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-2024-27051 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/cpufreq/brcmstb-avs-cpufreq.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/9127599c075caff234359950117018a010dd01db https://git.kernel.org/stable/c/d951cf510fb0df91d3abac0121a59ebbc63c0567 https://git.kernel.org/stable/c/e72160cb6e23b78b41999d6885a34ce8db536095 https://git.kernel.org/stable/c/b25b64a241d769e932a022e5c780cf135ef56035 https://git.kernel.org/stable/c/74b84d0d71180330efe67c82f973a87f828323e5 https://git.kernel.org/stable/c/e6e3e51ffba0784782b1a076d7441605697ea3c6 https://git.kernel.org/stable/c/f661017e6d326ee187db24194cabb013d81bc2a6