| 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-2025-37933: octeon_ep: Fix host hang issue during device reboot |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| octeon_ep: Fix host hang issue during device reboot |
| |
| When the host loses heartbeat messages from the device, |
| the driver calls the device-specific ndo_stop function, |
| which frees the resources. If the driver is unloaded in |
| this scenario, it calls ndo_stop again, attempting to free |
| resources that have already been freed, leading to a host |
| hang issue. To resolve this, dev_close should be called |
| instead of the device-specific stop function.dev_close |
| internally calls ndo_stop to stop the network interface |
| and performs additional cleanup tasks. During the driver |
| unload process, if the device is already down, ndo_stop |
| is not called. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37933 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.4 with commit 5cb96c29aa0ea359e4f5d30585538dc6a847d69d and fixed in 6.6.90 with commit 7e1ca1bed3f66e00377f7d2147be390144924276 |
| Issue introduced in 6.4 with commit 5cb96c29aa0ea359e4f5d30585538dc6a847d69d and fixed in 6.12.28 with commit c8d788f800f83b94d9db8b3dacc1d26be38a6ef4 |
| Issue introduced in 6.4 with commit 5cb96c29aa0ea359e4f5d30585538dc6a847d69d and fixed in 6.14.6 with commit 6d1052423518e7d0aece9af5e77bbc324face8f1 |
| Issue introduced in 6.4 with commit 5cb96c29aa0ea359e4f5d30585538dc6a847d69d and fixed in 6.15 with commit 34f42736b325287a7b2ce37e415838f539767bda |
| |
| 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-2025-37933 |
| 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/marvell/octeon_ep/octep_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/7e1ca1bed3f66e00377f7d2147be390144924276 |
| https://git.kernel.org/stable/c/c8d788f800f83b94d9db8b3dacc1d26be38a6ef4 |
| https://git.kernel.org/stable/c/6d1052423518e7d0aece9af5e77bbc324face8f1 |
| https://git.kernel.org/stable/c/34f42736b325287a7b2ce37e415838f539767bda |
