CVE-2022-48747: Linux Kernel

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: block: Fix wrong offset in bio_truncate() bio_truncate() clears the buffer outside of last block of bdev, however current bio_truncate() is using the wrong offset of page. So it can return the uninitialized data. This happened when both of truncated/corrupted FS and userspace (via bdev) are trying to read the last of bdev.

Affected products

• Linux Linux Kernel: before 5.4.176 (fixed in 5.4.176); from 5.5, before 5.10.96 (fixed in 5.10.96); from 5.11, before 5.15.19 (fixed in 5.15.19); from 5.16, before 5.16.5 (fixed in 5.16.5)

Published 2024-06-20. Last modified 2026-06-17.