| 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-2023-52985: arm64: dts: imx8mm-verdin: Do not power down eth-phy |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| arm64: dts: imx8mm-verdin: Do not power down eth-phy |
| |
| Currently if suspending using either freeze or memory state, the fec |
| driver tries to power down the phy which leads to crash of the kernel |
| and non-responsible kernel with the following call trace: |
| |
| [ 24.839889 ] Call trace: |
| [ 24.839892 ] phy_error+0x18/0x60 |
| [ 24.839898 ] kszphy_handle_interrupt+0x6c/0x80 |
| [ 24.839903 ] phy_interrupt+0x20/0x2c |
| [ 24.839909 ] irq_thread_fn+0x30/0xa0 |
| [ 24.839919 ] irq_thread+0x178/0x2c0 |
| [ 24.839925 ] kthread+0x154/0x160 |
| [ 24.839932 ] ret_from_fork+0x10/0x20 |
| |
| Since there is currently no functionality in the phy subsystem to power |
| down phys let's just disable the feature of powering-down the ethernet |
| phy. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52985 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.18 with commit 6a57f224f7346c8d23596f2ef1ce360669926f54 and fixed in 6.1.11 with commit 0bdd5a7b517f16fdffc444be6516c45788548d08 |
| Issue introduced in 5.18 with commit 6a57f224f7346c8d23596f2ef1ce360669926f54 and fixed in 6.2 with commit 39c95d0c357d7ef76aea958c1bece6b24f9b2e7e |
| |
| 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-2023-52985 |
| 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: |
| arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi |
| |
| |
| 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/0bdd5a7b517f16fdffc444be6516c45788548d08 |
| https://git.kernel.org/stable/c/39c95d0c357d7ef76aea958c1bece6b24f9b2e7e |
