CVE-2022-48747

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-908

Affected software

VendorProductVersions
LinuxLinux>= 943cd69efac437d82a7aea0659fccbcc071730de, < 6cbf4c731d7812518cd857c2cfc3da9fd120f6ae; >= 85a8ce62c2eabe28b9d76ca4eecf37922402df93, < b63e120189fd92aff00096d11e2fc5253f60248b; >= 85a8ce62c2eabe28b9d76ca4eecf37922402df93, < 4633a79ff8bc82770486a063a08b55e5162521d8; >= 85a8ce62c2eabe28b9d76ca4eecf37922402df93, < 941d5180c430ce5b0f7a3622ef9b76077bfa3d82; >= 85a8ce62c2eabe28b9d76ca4eecf37922402df93, < 3ee859e384d453d6ac68bfd5971f630d9fa46ad3; >= 5.4.9, < 5.4.176
LinuxLinux5.5
linuxlinux_kernel>= 1da177e4c3f4, < 6cbf4c731d78
linuxlinux_kernel>= 1da177e4c3f4, < b63e120189fd
linuxlinux_kernel>= 1da177e4c3f4, < 4633a79ff8bc
linuxlinux_kernel>= 1da177e4c3f4, < 941d5180c430
linuxlinux_kernel>= 1da177e4c3f4, < 3ee859e384d4
linuxlinux_kernel—
linuxlinux_kernel—
linuxlinux_kernel—
linuxlinux_kernel—
linuxlinux_kernel—

References

Timeline

Published
Jun 20, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2022-48747: High severity, CVSS 7.5 | Vulnix