CVE-2025-37933
octeon_ep: Fix host hang issue during device reboot
Reported by linux · Published May 20, 2025
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.
EPSS 0.21% · 10.8th percentile
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| linux_kernel | linux | 6.14.6, 6.12.28, 6.6.90 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 5cb96c29aa0ea359e4f5d30585538dc6a847d69d, 5cb96c29aa0ea359e4f5d30585538dc6a847d69d, 5cb96c29aa0ea359e4f5d30585538dc6a847d69d |
| Linux | Linux | 6.4, 0, 6.6.90 |
| linux | linux_kernel | 6.4, 6.4, 6.4 |
| Linux | Linux | 5cb96c29aa0ea359e4f5d30585538dc6a847d69d, 5cb96c29aa0ea359e4f5d30585538dc6a847d69d, 0 |
Timeline
- May 20, 2025 CVE Published
- May 21, 2025 EPSS Score (30 in total, the first dated here)
- Oct 12, 2025 PoC Published (25 in total, the first dated here)
- Nov 17, 2025 CVE Updated
- Mar 29, 2026 Distribution Patch (217 in total, the first dated here)
- Mar 29, 2026 Security Advisory (225 in total, the first dated here)
- Jun 9, 2026 Coalition ESS Score
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