| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-35945: net: phy: phy_device: Prevent nullptr exceptions on ISR |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: phy: phy_device: Prevent nullptr exceptions on ISR |
| |
| If phydev->irq is set unconditionally, check |
| for valid interrupt handler or fall back to polling mode to prevent |
| nullptr exceptions in interrupt service routine. |
| |
| The Linux kernel CVE team has assigned CVE-2024-35945 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.3 with commit 49644e68f472c6480e015253fa4d7448c6cfa2aa and fixed in 6.6.27 with commit 7a71f61ebf95cedd3f245db6da397822971d8db5 |
| Issue introduced in 5.3 with commit 49644e68f472c6480e015253fa4d7448c6cfa2aa and fixed in 6.8.6 with commit 3419ee39e3d3162ab2ec9942bb537613ed5b6311 |
| Issue introduced in 5.3 with commit 49644e68f472c6480e015253fa4d7448c6cfa2aa and fixed in 6.9 with commit 61c81872815f46006982bb80460c0c80a949b35b |
| |
| 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-2024-35945 |
| 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/net/phy/phy_device.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/7a71f61ebf95cedd3f245db6da397822971d8db5 |
| https://git.kernel.org/stable/c/3419ee39e3d3162ab2ec9942bb537613ed5b6311 |
| https://git.kernel.org/stable/c/61c81872815f46006982bb80460c0c80a949b35b |
