CVE-2022-48747

HIGH

Linux Kernel < 5.4.176, 5.5.0-5.15.19, 5.11.0-5.16.5 - Uninitialized Memory Exposure via bio_truncate()

Title source: llm
STIX 2.1

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 (5)

Core 5

Scores

CVSS v3 7.5
EPSS 0.0092
EPSS Percentile 55.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-908
Status published
Products (17)
linux/Kernel < 5.4.176linux
linux/Kernel 5.11.0 - 5.16.5linux
linux/Kernel 5.5.0 - 5.15.19linux
Linux/Linux < 5.5
Linux/Linux 5.10.96 - 5.10.*
Linux/Linux 5.15.19 - 5.15.*
Linux/Linux 5.16.5 - 5.16.*
Linux/Linux 5.17
Linux/Linux 5.4.176 - 5.4.*
Linux/Linux 5.4.9 - 5.4.176
... and 7 more
Published Jun 20, 2024
Tracked Since Feb 18, 2026