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CVE-2025-38701 ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr
Description
In the Linux kernel, the following vulnerability has been resolved: ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr A syzbot fuzzed image triggered a BUG_ON in ext4_update_inline_data() when an inode had the INLINE_DATA_FL flag set but was missing the system.data extended attribute. Since this can happen due to a maiciouly fuzzed file system, we shouldn't BUG, but rather, report it as a corrupted file system. Add similar replacements of BUG_ON with EXT4_ERROR_INODE() ii ext4_create_inline_data() and ext4_inline_data_truncate().
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 6.17 | earliest → < 6.17 | 6.17 |
| Linux 6.16 | earliest → < 6.16.2 | 6.16.2 |
| Linux 6.15 | earliest → < 6.15.11 | 6.15.11 |
| Linux 6.12 | earliest → < 6.12.43 | 6.12.43 |
| Linux 6.6 | earliest → < 6.6.103 | 6.6.103 |
| Linux 6.1 | earliest → < 6.1.149 | 6.1.149 |
| Linux 5.15 | earliest → < 5.15.190 | 5.15.190 |
| Linux 5.10 | earliest → < 5.10.241 | 5.10.241 |
| Linux 5.4 | earliest → < 5.4.297 | 5.4.297 |
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| Product | Affected versions | Fixed in |
|---|---|---|
| Linux | 3.8 | No fix stated |
| SIMATIC CN 4100 5.0 | earliest → < 5.0 | 5.0 |
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.5 → latest | No fix stated |
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.5 → latest | No fix stated |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.5 → latest | No fix stated |
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