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CVE-2025-38125 net: stmmac: make sure that ptp_rate is not 0 before configuring EST
Description
In the Linux kernel, the following vulnerability has been resolved: net: stmmac: make sure that ptp_rate is not 0 before configuring EST If the ptp_rate recorded earlier in the driver happens to be 0, this bogus value will propagate up to EST configuration, where it will trigger a division by 0. Prevent this division by 0 by adding the corresponding check and error code.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 6.16 | earliest → < 6.16 | 6.16 |
| Linux 6.15 | earliest → < 6.15.3 | 6.15.3 |
| Linux 6.12 | earliest → < 6.12.34 | 6.12.34 |
| Linux 6.6 | earliest → < 6.6.120 | 6.6.120 |
| Linux 6.1 | earliest → < 6.1.162 | 6.1.162 |
| Linux 5.15 | earliest → < 5.15.199 | 5.15.199 |
| Linux | 5.6 | No fix stated |
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
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| Product | Affected versions | Fixed in |
|---|---|---|
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
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