| 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-2024-50097: net: fec: don't save PTP state if PTP is unsupported |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: fec: don't save PTP state if PTP is unsupported |
| |
| Some platforms (such as i.MX25 and i.MX27) do not support PTP, so on |
| these platforms fec_ptp_init() is not called and the related members |
| in fep are not initialized. However, fec_ptp_save_state() is called |
| unconditionally, which causes the kernel to panic. Therefore, add a |
| condition so that fec_ptp_save_state() is not called if PTP is not |
| supported. |
| |
| The Linux kernel CVE team has assigned CVE-2024-50097 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.6.55 with commit dc5fb264168c3aa8842b2db547c2b5c7df346454 and fixed in 6.6.57 with commit 7745e14f4c036ce94a5eb05d06e49b0d84b306f9 |
| Issue introduced in 6.11.3 with commit 5763541f24d8ab2053d80fddb8479a2d0df8fd4f and fixed in 6.11.4 with commit 3192e8d4a1ef9fc9bd7a59cdce51543367e5edd6 |
| Issue introduced in 6.10.14 with commit cf53d7e76f1fb751b12ceda6a49942414d2f9ea9 |
| |
| 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-2024-50097 |
| 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/ethernet/freescale/fec_main.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/7745e14f4c036ce94a5eb05d06e49b0d84b306f9 |
| https://git.kernel.org/stable/c/3192e8d4a1ef9fc9bd7a59cdce51543367e5edd6 |
| https://git.kernel.org/stable/c/6be063071a457767ee229db13f019c2ec03bfe44 |
