CVEvulnerability

CVE-2024-46780

5.5 MEDIUM Published 2024-09-18 Modified 2026-08-04 Official page ↗
Status
Modified
Published
2024-09-18
Last modified
2026-08-04
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: nilfs2: protect references to superblock parameters exposed in sysfs The superblock buffers of nilfs2 can not only be overwritten at runtime for modifications/repairs, but they are also regularly swapped, replaced during resizing, and even abandoned when degrading to one side due to backing device issues. So, accessing them requires mutual exclusion using the reader/writer semaphore "nilfs->ns_sem". Some sysfs attribute show methods read this superblock buffer without the necessary mutual exclusion, which can cause problems with pointer dereferencing and memory access, so fix it.

Affected configurations

• linux linux kernel (>= 3.17 < 4.19.322) • linux linux kernel (>= 4.20 < 5.4.284) • linux linux kernel (>= 5.5 < 5.10.226) • linux linux kernel (>= 5.11 < 5.15.167) • linux linux kernel (>= 5.16 < 6.1.110) • linux linux kernel (>= 6.2 < 6.6.51) • linux linux kernel (>= 6.7 < 6.10.10) • linux linux kernel 6.11

References