#VU94460 Improper error handling in Linux kernel - CVE-2022-48802
Published: July 17, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94460
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-48802
CWE-ID: CWE-388
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling within the smaps_page_accumulate(), smaps_account(), smaps_pte_entry(), smaps_pmd_entry(), pte_to_pagemap_entry() and pagemap_pmd_range() functions in fs/proc/task_mmu.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/db3f3636e4aed2cba3e4e7897a053323f7a62249
- https://git.kernel.org/stable/c/a8dd0cfa37792863b6c4bf9542975212a6715d49
- https://git.kernel.org/stable/c/05d3f8045efa59457b323caf00bdb9273b7962fa
- https://git.kernel.org/stable/c/24d7275ce2791829953ed4e72f68277ceb2571c6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.102
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.25
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17