| 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-2024-40967: serial: imx: Introduce timeout when waiting on transmitter empty |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| serial: imx: Introduce timeout when waiting on transmitter empty |
| |
| By waiting at most 1 second for USR2_TXDC to be set, we avoid a potential |
| deadlock. |
| |
| In case of the timeout, there is not much we can do, so we simply ignore |
| the transmitter state and optimistically try to continue. |
| |
| The Linux kernel CVE team has assigned CVE-2024-40967 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.15.162 with commit 7f2b9ab6d0b26f16cd38dd9fd91d51899635f7c7 |
| Fixed in 6.1.96 with commit 7f9e70c68b7ace0141fe3bc94bf7b61296b71916 |
| Fixed in 6.6.36 with commit 982ae3376c4c91590d38dc8a676c10f7df048a44 |
| Fixed in 6.9.7 with commit 53b2c95547427c358f45515a9f144efee95e3701 |
| Fixed in 6.10 with commit e533e4c62e9993e62e947ae9bbec34e4c7ae81c2 |
| |
| 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-2024-40967 |
| 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/tty/serial/imx.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/7f2b9ab6d0b26f16cd38dd9fd91d51899635f7c7 |
| https://git.kernel.org/stable/c/7f9e70c68b7ace0141fe3bc94bf7b61296b71916 |
| https://git.kernel.org/stable/c/982ae3376c4c91590d38dc8a676c10f7df048a44 |
| https://git.kernel.org/stable/c/53b2c95547427c358f45515a9f144efee95e3701 |
| https://git.kernel.org/stable/c/e533e4c62e9993e62e947ae9bbec34e4c7ae81c2 |
