CVE-2026-72169

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().

Status

Received - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-08-15

Last modified

2026-08-17

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/0e39380a7316122e1b00012b3f3cd3e318b3e7d3
• https://git.kernel.org/stable/c/9fefab759f59bf891bef7be15aee4bc7caec7ec3
• https://git.kernel.org/stable/c/b8271be34bce151597da5b5179e0648c281322a4