CVE-2026-89584
In the Linux kernel, the following vulnerability has been resolved: block: validate user space vectors during extraction The bio-based drivers don't necessarily check the alignment split, and stacking block drivers don't always handle a misalignment detected after submitting the bio. Validate user vectors against the device's dma_alignment as the bio is built from the iov_iter, rejecting misaligned early with -EINVAL.
- Published Sep 11, 2026
- CVSS 7.8 high
- 0.2% chance of exploitation in the next 30 days (EPSS)
- A fix is available