CVE-2026-72169
Description
AI Translation Available
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().
https://git.kernel.org/stable/c/0e39380a7316122e1b00012b3f3cd3e318b3e7d3
https://git.kernel.org/stable/c/9fefab759f59bf891bef7be15aee4bc7caec7ec3
https://git.kernel.org/stable/c/b8271be34bce151597da5b5179e0648c281322a4