| 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-2022-49241: ASoC: atmel: Fix error handling in sam9x5_wm8731_driver_probe |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ASoC: atmel: Fix error handling in sam9x5_wm8731_driver_probe |
| |
| The device_node pointer is returned by of_parse_phandle() with refcount |
| incremented. We should use of_node_put() on it when done. |
| |
| This function only calls of_node_put() in the regular path. |
| And it will cause refcount leak in error path. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49241 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.12 with commit fdbcb3cba54b29a37dfe42acdc0e72c543e0807d and fixed in 5.10.110 with commit 90ac679aa6a01841da90ec5a4aaa4b5e0badddf0 |
| Issue introduced in 3.12 with commit fdbcb3cba54b29a37dfe42acdc0e72c543e0807d and fixed in 5.15.33 with commit f589063b585ac6dd2081bde6c145411cf48d8d92 |
| Issue introduced in 3.12 with commit fdbcb3cba54b29a37dfe42acdc0e72c543e0807d and fixed in 5.16.19 with commit 14228225091a0854b1de23e5b4fe8bdeeca9683b |
| Issue introduced in 3.12 with commit fdbcb3cba54b29a37dfe42acdc0e72c543e0807d and fixed in 5.17.2 with commit f43ad5dc43240289f4cf13c16cc506f4f7087931 |
| Issue introduced in 3.12 with commit fdbcb3cba54b29a37dfe42acdc0e72c543e0807d and fixed in 5.18 with commit 740dc3e846537c3743da98bf106f376023fd085c |
| |
| 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-2022-49241 |
| 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: |
| sound/soc/atmel/sam9x5_wm8731.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/90ac679aa6a01841da90ec5a4aaa4b5e0badddf0 |
| https://git.kernel.org/stable/c/f589063b585ac6dd2081bde6c145411cf48d8d92 |
| https://git.kernel.org/stable/c/14228225091a0854b1de23e5b4fe8bdeeca9683b |
| https://git.kernel.org/stable/c/f43ad5dc43240289f4cf13c16cc506f4f7087931 |
| https://git.kernel.org/stable/c/740dc3e846537c3743da98bf106f376023fd085c |
