| 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-2024-50198: iio: light: veml6030: fix IIO device retrieval from embedded device |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| iio: light: veml6030: fix IIO device retrieval from embedded device |
| |
| The dev pointer that is received as an argument in the |
| in_illuminance_period_available_show function references the device |
| embedded in the IIO device, not in the i2c client. |
| |
| dev_to_iio_dev() must be used to accessthe right data. The current |
| implementation leads to a segmentation fault on every attempt to read |
| the attribute because indio_dev gets a NULL assignment. |
| |
| This bug has been present since the first appearance of the driver, |
| apparently since the last version (V6) before getting applied. A |
| constant attribute was used until then, and the last modifications might |
| have not been tested again. |
| |
| The Linux kernel CVE team has assigned CVE-2024-50198 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.5 with commit 7b779f573c48e1ad6da1d6ea5f181f3ecd666bf6 and fixed in 5.10.228 with commit bf3ab8e1c28f10df0823d4ff312f83c952b06a15 |
| Issue introduced in 5.5 with commit 7b779f573c48e1ad6da1d6ea5f181f3ecd666bf6 and fixed in 5.15.169 with commit 50039aec43a82ad2495f2d0fb0c289c8717b4bb2 |
| Issue introduced in 5.5 with commit 7b779f573c48e1ad6da1d6ea5f181f3ecd666bf6 and fixed in 6.1.114 with commit bcb90518ccd9e10bf6ab29e31994aab93e4a4361 |
| Issue introduced in 5.5 with commit 7b779f573c48e1ad6da1d6ea5f181f3ecd666bf6 and fixed in 6.6.58 with commit 2cbb41abae65626736b8b52cf3b9339612c5a86a |
| Issue introduced in 5.5 with commit 7b779f573c48e1ad6da1d6ea5f181f3ecd666bf6 and fixed in 6.11.5 with commit 905166531831beb067fffe2bdfc98031ffe89087 |
| Issue introduced in 5.5 with commit 7b779f573c48e1ad6da1d6ea5f181f3ecd666bf6 and fixed in 6.12 with commit c7c44e57750c31de43906d97813273fdffcf7d02 |
| |
| 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-2024-50198 |
| 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/iio/light/veml6030.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/bf3ab8e1c28f10df0823d4ff312f83c952b06a15 |
| https://git.kernel.org/stable/c/50039aec43a82ad2495f2d0fb0c289c8717b4bb2 |
| https://git.kernel.org/stable/c/bcb90518ccd9e10bf6ab29e31994aab93e4a4361 |
| https://git.kernel.org/stable/c/2cbb41abae65626736b8b52cf3b9339612c5a86a |
| https://git.kernel.org/stable/c/905166531831beb067fffe2bdfc98031ffe89087 |
| https://git.kernel.org/stable/c/c7c44e57750c31de43906d97813273fdffcf7d02 |
