CVE-2022-48747

high

Description

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.

References

https://git.kernel.org/stable/c/b63e120189fd92aff00096d11e2fc5253f60248b

https://git.kernel.org/stable/c/941d5180c430ce5b0f7a3622ef9b76077bfa3d82

https://git.kernel.org/stable/c/6cbf4c731d7812518cd857c2cfc3da9fd120f6ae

https://git.kernel.org/stable/c/4633a79ff8bc82770486a063a08b55e5162521d8

https://git.kernel.org/stable/c/3ee859e384d453d6ac68bfd5971f630d9fa46ad3

Details

Source: Mitre, NVD

Published: 2024-06-20

Updated: 2024-07-03

Risk Information

CVSS v2

Base Score: 4.5

Vector: CVSS2#AV:L/AC:H/Au:S/C:P/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High