UBUNTU-CVE-2025-37933
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.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
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45 explicit affected versions
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11 explicit affected versions
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11 explicit affected versions
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30 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/34f42736b325287a7b2ce37e415838f539767bda
- https://git.kernel.org/stable/c/34f42736b325287a7b2ce37e415838f539767bda
- https://git.kernel.org/stable/c/6d1052423518e7d0aece9af5e77bbc324face8f1
- https://git.kernel.org/stable/c/7e1ca1bed3f66e00377f7d2147be390144924276
- https://git.kernel.org/stable/c/c8d788f800f83b94d9db8b3dacc1d26be38a6ef4
- https://ubuntu.com/security/CVE-2025-37933
- https://ubuntu.com/security/notices/USN-7649-1
- https://ubuntu.com/security/notices/USN-7649-2
- https://ubuntu.com/security/notices/USN-7650-1
- https://ubuntu.com/security/notices/USN-7665-1
- https://ubuntu.com/security/notices/USN-7665-2
- https://ubuntu.com/security/notices/USN-7721-1
- https://ubuntu.com/security/notices/USN-8028-1
- https://ubuntu.com/security/notices/USN-8028-2
- https://ubuntu.com/security/notices/USN-8028-3
- https://ubuntu.com/security/notices/USN-8028-4
- https://ubuntu.com/security/notices/USN-8028-5
- https://ubuntu.com/security/notices/USN-8028-6
- https://ubuntu.com/security/notices/USN-8028-7
- https://ubuntu.com/security/notices/USN-8028-8
- https://ubuntu.com/security/notices/USN-8031-1
- https://ubuntu.com/security/notices/USN-8031-2
- https://ubuntu.com/security/notices/USN-8031-3
- https://ubuntu.com/security/notices/USN-8052-1
- https://ubuntu.com/security/notices/USN-8052-2
- https://ubuntu.com/security/notices/USN-8074-1
- https://ubuntu.com/security/notices/USN-8074-2
- https://ubuntu.com/security/notices/USN-8126-1
- https://www.cve.org/CVERecord?id=CVE-2025-37933