Improper error handling in Linux kernel btrfs



| Updated: 2025-05-11
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-49167
CWE-ID CWE-388
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper error handling

EUVDB-ID: #VU104757

Risk: Low

CVSSv4.0: 4.3 [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-2022-49167

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

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 btrfs_submit_data_bio() and bio_endio() functions in fs/btrfs/inode.c, within the btrfs_submit_compressed_read() and kfree() functions in fs/btrfs/compression.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.16 - 5.18 rc8

CPE2.3 External links

https://git.kernel.org/stable/c/4a4ceb2b990771c374d85d496a1a45255dde48e3
https://git.kernel.org/stable/c/987b5df1d10355d377315a26e7fb6c72ded83c9f
https://git.kernel.org/stable/c/f9f15de85d74e7eef021af059ca53a15f041cdd8
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.19
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.2
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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