SB2024071782 - Improper error handling in Linux kernel proc
Published: July 17, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024071782
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper error handling (CVE-ID: CVE-2022-48802)
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.
References
- 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