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CVE-2025-39853 i40e: Fix potential invalid access when MAC list is empty
Description
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix potential invalid access when MAC list is empty list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced. Fix this by using list_first_entry_or_null instead of list_first_entry.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 6.17 | earliest → < 6.17 | 6.17 |
| Linux 6.16 | earliest → < 6.16.6 | 6.16.6 |
| Linux 6.12 | earliest → < 6.12.46 | 6.12.46 |
| Linux 6.6 | earliest → < 6.6.105 | 6.6.105 |
| Linux 6.1 | earliest → < 6.1.151 | 6.1.151 |
| Linux 5.15 | earliest → < 5.15.192 | 5.15.192 |
| Linux 5.10 | earliest → < 5.10.243 | 5.10.243 |
| Linux 5.4 | earliest → < 5.4.299 | 5.4.299 |
| Linux | 4.6 | No fix stated |
Show the 17 other branches Hide the 17 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| RUGGEDCOM RST2428P 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XCH328 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XCM324 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XCM328 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XCM332 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRH334 (24 V DC, 8xFO, CC) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (230 V AC, 12xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (230 V AC, 8xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (24 V DC, 12xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (24 V DC, 8xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (2x230 V AC, 12xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (2x230 V AC, 8xFO) 3.3 | earliest → < 3.3 | 3.3 |
| SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) 3.3 | earliest → < 3.3 | 3.3 |
| SIMATIC CN 4100 5.0 | earliest → < 5.0 | 5.0 |
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