SB20240620201 - Improper error handling in Linux kernel ext4
Published: June 20, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240620201
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-2022-48712)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling within the ext4_fc_record_modified_inode(), ext4_fc_replay_inode(), ext4_fc_replay_add_range(), ext4_ext_replay_shrink_inode() and ext4_fc_replay_del_range() functions in fs/ext4/fast_commit.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/62e46e0ffc02daa8fcfc02f7a932cc8a19601b19
- https://git.kernel.org/stable/c/1b6762ecdf3cf12113772427c904aa3c420a1802
- https://git.kernel.org/stable/c/14aa3f49c7fc6424763f4323bfbc3a807b0727dc
- https://git.kernel.org/stable/c/cdce59a1549190b66f8e3fe465c2b2f714b98a94
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.99
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17