| 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-2022-49145: ACPI: CPPC: Avoid out of bounds access when parsing _CPC data |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ACPI: CPPC: Avoid out of bounds access when parsing _CPC data |
| |
| If the NumEntries field in the _CPC return package is less than 2, do |
| not attempt to access the "Revision" element of that package, because |
| it may not be present then. |
| |
| BugLink: https://lore.kernel.org/lkml/20220322143534.GC32582@xsang-OptiPlex-9020/ |
| |
| The Linux kernel CVE team has assigned CVE-2022-49145 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.4 with commit 337aadff8e4567e39669e07d9a88b789d78458b5 and fixed in 4.9.311 with commit b3f15609ffa521de12244cd6af24002030dda3f5 |
| Issue introduced in 4.4 with commit 337aadff8e4567e39669e07d9a88b789d78458b5 and fixed in 4.14.276 with commit d208ea44e25b31db5a4d5e8c31df51787a3e9303 |
| Issue introduced in 4.4 with commit 337aadff8e4567e39669e07d9a88b789d78458b5 and fixed in 4.19.238 with commit 28d5387c1994f5e1e0d41b30a1f3dd6e1f609252 |
| Issue introduced in 4.4 with commit 337aadff8e4567e39669e07d9a88b789d78458b5 and fixed in 5.4.189 with commit cb249f8c00f40dba83b7da8207ac14ca46e9ec9e |
| Issue introduced in 4.4 with commit 337aadff8e4567e39669e07d9a88b789d78458b5 and fixed in 5.10.110 with commit e5b681822cac1f8093759b02e16c06b2c64b6788 |
| Issue introduced in 4.4 with commit 337aadff8e4567e39669e07d9a88b789d78458b5 and fixed in 5.15.33 with commit 97b5593fd1b182b3fdb180b6bbe64ec09669988b |
| Issue introduced in 4.4 with commit 337aadff8e4567e39669e07d9a88b789d78458b5 and fixed in 5.16.19 with commit b80b19b32a432c9eee1cd200ef7aaddf608f54d1 |
| Issue introduced in 4.4 with commit 337aadff8e4567e39669e07d9a88b789d78458b5 and fixed in 5.17.2 with commit d7339f2a3938fb56b5f28d53f5345900b5fa0e74 |
| Issue introduced in 4.4 with commit 337aadff8e4567e39669e07d9a88b789d78458b5 and fixed in 5.18 with commit 40d8abf364bcab23bc715a9221a3c8623956257b |
| |
| 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-2022-49145 |
| 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/acpi/cppc_acpi.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/b3f15609ffa521de12244cd6af24002030dda3f5 |
| https://git.kernel.org/stable/c/d208ea44e25b31db5a4d5e8c31df51787a3e9303 |
| https://git.kernel.org/stable/c/28d5387c1994f5e1e0d41b30a1f3dd6e1f609252 |
| https://git.kernel.org/stable/c/cb249f8c00f40dba83b7da8207ac14ca46e9ec9e |
| https://git.kernel.org/stable/c/e5b681822cac1f8093759b02e16c06b2c64b6788 |
| https://git.kernel.org/stable/c/97b5593fd1b182b3fdb180b6bbe64ec09669988b |
| https://git.kernel.org/stable/c/b80b19b32a432c9eee1cd200ef7aaddf608f54d1 |
| https://git.kernel.org/stable/c/d7339f2a3938fb56b5f28d53f5345900b5fa0e74 |
| https://git.kernel.org/stable/c/40d8abf364bcab23bc715a9221a3c8623956257b |
