| 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-2022-49071: drm/panel: ili9341: fix optional regulator handling |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/panel: ili9341: fix optional regulator handling |
| |
| If the optional regulator lookup fails, reset the pointer to NULL. |
| Other functions such as mipi_dbi_poweron_reset_conditional() only do |
| a NULL pointer check and will otherwise dereference the error pointer. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49071 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15 with commit 5a04227326b04c15b015181772f5c853172fdb68 and fixed in 5.15.34 with commit 28dc1503a9d36654f9c61adb2915682515a30f71 |
| Issue introduced in 5.15 with commit 5a04227326b04c15b015181772f5c853172fdb68 and fixed in 5.16.20 with commit e3d982c111a6c033671dd6084b07f62fbf50f76f |
| Issue introduced in 5.15 with commit 5a04227326b04c15b015181772f5c853172fdb68 and fixed in 5.17.3 with commit 4ea189854b1e625ed5ec80d30147870f984db44c |
| Issue introduced in 5.15 with commit 5a04227326b04c15b015181772f5c853172fdb68 and fixed in 5.18 with commit d14eb80e27795b7b20060f7b151cdfe39722a813 |
| |
| 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-2022-49071 |
| 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/gpu/drm/panel/panel-ilitek-ili9341.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/28dc1503a9d36654f9c61adb2915682515a30f71 |
| https://git.kernel.org/stable/c/e3d982c111a6c033671dd6084b07f62fbf50f76f |
| https://git.kernel.org/stable/c/4ea189854b1e625ed5ec80d30147870f984db44c |
| https://git.kernel.org/stable/c/d14eb80e27795b7b20060f7b151cdfe39722a813 |
