Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: kho: make sure scratch size is always aligned by CMA_MIN_ALIGNMENT_BYTES When using scratch_scale, the scratch sizes are rounded up to CMA_MIN_ALIGNMENT_BYTES since they will be released as MIGRATE_CMA. This is not done when using fixed scratch sizes via command line. This can result in user specifying a size which is not aligned, and thus kernel releasing a pageblock that is only partially scratch. Do the rounding up for both cases in scratch_size_update().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 before b8271be34bce151597da5b5179e0648c281322a4; affected 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 before 9fefab759f59bf891bef7be15aee4bc7caec7ec3; affected 3dc92c311498c4d307cfdd0c6c3ac9355b50f683 before 0e39380a7316122e1b00012b3f3cd3e318b3e7d3 |
| Linux / Linux | affected 6.16; unaffected 0 before 6.16; unaffected 6.18.42 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.