| 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-2022-49435: mfd: davinci_voicecodec: Fix possible null-ptr-deref davinci_vc_probe() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| mfd: davinci_voicecodec: Fix possible null-ptr-deref davinci_vc_probe() |
| |
| It will cause null-ptr-deref when using 'res', if platform_get_resource() |
| returns NULL, so move using 'res' after devm_ioremap_resource() that |
| will check it to avoid null-ptr-deref. |
| And use devm_platform_get_and_ioremap_resource() to simplify code. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49435 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.4 with commit b5e29aa880be84c271be8d0726cec4018bfbfd74 and fixed in 5.4.198 with commit 49c1e32e7b3f301642a60448700ec531df981269 |
| Issue introduced in 5.4 with commit b5e29aa880be84c271be8d0726cec4018bfbfd74 and fixed in 5.10.121 with commit a1d4941d9a24999f680799f9bbde7f57351ca637 |
| Issue introduced in 5.4 with commit b5e29aa880be84c271be8d0726cec4018bfbfd74 and fixed in 5.15.46 with commit 5289795824b77489803b0802cd9edc13824a2d0b |
| Issue introduced in 5.4 with commit b5e29aa880be84c271be8d0726cec4018bfbfd74 and fixed in 5.17.14 with commit 2d00158a06efe6bbcd020108634ea0f2ed8b32f7 |
| Issue introduced in 5.4 with commit b5e29aa880be84c271be8d0726cec4018bfbfd74 and fixed in 5.18.3 with commit 579944b9f38727d9ff570b58f83bc424e8af8398 |
| Issue introduced in 5.4 with commit b5e29aa880be84c271be8d0726cec4018bfbfd74 and fixed in 5.19 with commit 311242c7703df0da14c206260b7e855f69cb0264 |
| |
| 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-2022-49435 |
| 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/mfd/davinci_voicecodec.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/49c1e32e7b3f301642a60448700ec531df981269 |
| https://git.kernel.org/stable/c/a1d4941d9a24999f680799f9bbde7f57351ca637 |
| https://git.kernel.org/stable/c/5289795824b77489803b0802cd9edc13824a2d0b |
| https://git.kernel.org/stable/c/2d00158a06efe6bbcd020108634ea0f2ed8b32f7 |
| https://git.kernel.org/stable/c/579944b9f38727d9ff570b58f83bc424e8af8398 |
| https://git.kernel.org/stable/c/311242c7703df0da14c206260b7e855f69cb0264 |
