| 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-2021-47437: iio: adis16475: fix deadlock on frequency set |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| iio: adis16475: fix deadlock on frequency set |
| |
| With commit 39c024b51b560 |
| ("iio: adis16475: improve sync scale mode handling"), two deadlocks were |
| introduced: |
| 1) The call to 'adis_write_reg_16()' was not changed to it's unlocked |
| version. |
| 2) The lock was not being released on the success path of the function. |
| |
| This change fixes both these issues. |
| |
| The Linux kernel CVE team has assigned CVE-2021-47437 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.13 with commit 39c024b51b5607e9d2fc6c04c2573e4a778c728d and fixed in 5.14.14 with commit 04e03b907022ebd876f422f17efcc2c6cc934dc6 |
| Issue introduced in 5.13 with commit 39c024b51b5607e9d2fc6c04c2573e4a778c728d and fixed in 5.15 with commit 9da1b86865ab4376408c58cd9fec332c8bdb5c73 |
| |
| 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-2021-47437 |
| 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/imu/adis16475.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/04e03b907022ebd876f422f17efcc2c6cc934dc6 |
| https://git.kernel.org/stable/c/9da1b86865ab4376408c58cd9fec332c8bdb5c73 |
