{"id":"CVE-2025-37933","title":"octeon_ep: Fix host hang issue during device reboot","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteon_ep: Fix host hang issue during device reboot\n\nWhen the host loses heartbeat messages from the device,\nthe driver calls the device-specific ndo_stop function,\nwhi…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 5cb96c29aa0ea359e4f5d30585538dc6a847d69d < 7e1ca1bed3f66e00377f7d2147be390144924276","Linux >= 5cb96c29aa0ea359e4f5d30585538dc6a847d69d < c8d788f800f83b94d9db8b3dacc1d26be38a6ef4","Linux >= 5cb96c29aa0ea359e4f5d30585538dc6a847d69d < 6d1052423518e7d0aece9af5e77bbc324face8f1","Linux >= 5cb96c29aa0ea359e4f5d30585538dc6a847d69d < 34f42736b325287a7b2ce37e415838f539767bda","Linux 6.4"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:45:21.738226Z"},"published":"2025-05-20","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:52:08.522Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-37933","references":[{"url":"https://git.kernel.org/stable/c/7e1ca1bed3f66e00377f7d2147be390144924276"},{"url":"https://git.kernel.org/stable/c/c8d788f800f83b94d9db8b3dacc1d26be38a6ef4"},{"url":"https://git.kernel.org/stable/c/6d1052423518e7d0aece9af5e77bbc324face8f1"},{"url":"https://git.kernel.org/stable/c/34f42736b325287a7b2ce37e415838f539767bda"}],"tags":["cve.org"],"epss":0.00207,"epssPercentile":0.10884,"ingestedAt":"2026-11-05T22:38:31.895Z","slug":"CVE-2025-37933","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nocteon_ep: Fix host hang issue during device reboot\n\nWhen the host loses heartbeat messages from the device,\nthe driver calls the device-specific ndo_stop function,\nwhich frees the resources. If the driver is unloaded in\nthis scenario, it calls ndo_stop again, attempting to free\nresources that have already been freed, leading to a host\nhang issue. To resolve this, dev_close should be called\ninstead of the device-specific stop function.dev_close\ninternally calls ndo_stop to stop the network interface\nand performs additional cleanup tasks. During the driver\nunload process, if the device is already down, ndo_stop\nis not called.\n\n## Affected\n\n- `Linux >= 5cb96c29aa0ea359e4f5d30585538dc6a847d69d < 7e1ca1bed3f66e00377f7d2147be390144924276`\n- `Linux >= 5cb96c29aa0ea359e4f5d30585538dc6a847d69d < c8d788f800f83b94d9db8b3dacc1d26be38a6ef4`\n- `Linux >= 5cb96c29aa0ea359e4f5d30585538dc6a847d69d < 6d1052423518e7d0aece9af5e77bbc324face8f1`\n- `Linux >= 5cb96c29aa0ea359e4f5d30585538dc6a847d69d < 34f42736b325287a7b2ce37e415838f539767bda`\n- `Linux 6.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}