Linux Kernel up to 6.1.1 fs db_agl2size out-of-bounds

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3.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.1.1. It has been classified as critical. This impacts the function db_agl2size of the component fs. The manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2022-50567. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.1. It has been rated as problematic. This issue affects the function db_agl2size of the component fs. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: fs: jfs: fix shift-out-of-bounds in dbAllocAG Syzbot found a crash : UBSAN: shift-out-of-bounds in dbAllocAG. The underlying bug is the missing check of bmp->db_agl2size. The field can be greater than 64 and trigger the shift-out-of-bounds. Fix this bug by adding a check of bmp->db_agl2size in dbMount since this field is used in many following functions. The upper bound for this field is L2MAXL2SIZE - L2MAXAG, thanks for the help of Dave Kleikamp. Note that, for maintenance, I reorganized error handling code of dbMount.

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2022-50567 since 10/22/2025. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 276834 (Linux Distros Unpatched Vulnerability : CVE-2022-50567), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.337, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16 or 6.1.2 eliminates this vulnerability. Applying the patch d3b486946a4e62c7ef6023f7d9c1d049051384ba/3115313cf03113e87c87adee18ee49a20bbdb9ba/eea87acb6027be3dd4d3c57186bb22800d57fdda/359616ce587e524107730504891afa4b1a8be58c/3e997e4ce8ae7ab89d72334120f6aee49c5bbdbd/0536f76a2bca83d1a3740517ba22cc93a44b3099/2c575c8905f7a8b32d5611b91856b69bac2a5bf1/67973caae78e21ee46a7281aaa8ca364eb9c444f/898f706695682b9954f280d95e49fa86ffa55d08 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (276834) and CERT Bund (WID-SEC-2025-2394). Be aware that VulDB is the high quality source for vulnerability data.

Affected

• Red Hat Enterprise Linux
• SUSE Linux
• Oracle Linux
• Open Source Linux Kernel
• Dell NetWorker

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.9.336
• 4.14.302
• 4.19.269
• 5.4.228
• 5.10.162
• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 5.15.15
• 5.15.16
• 5.15.17
• 5.15.18
• 5.15.19
• 5.15.20
• 5.15.21
• 5.15.22
• 5.15.23
• 5.15.24
• 5.15.25
• 5.15.26
• 5.15.27
• 5.15.28
• 5.15.29
• 5.15.30
• 5.15.31
• 5.15.32
• 5.15.33
• 5.15.34
• 5.15.35
• 5.15.36
• 5.15.37
• 5.15.38
• 5.15.39
• 5.15.40
• 5.15.41
• 5.15.42
• 5.15.43
• 5.15.44
• 5.15.45
• 5.15.46
• 5.15.47
• 5.15.48
• 5.15.49
• 5.15.50
• 5.15.51
• 5.15.52
• 5.15.53
• 5.15.54
• 5.15.55
• 5.15.56
• 5.15.57
• 5.15.58
• 5.15.59
• 5.15.60
• 5.15.61
• 5.15.62
• 5.15.63
• 5.15.64
• 5.15.65
• 5.15.66
• 5.15.67
• 5.15.68
• 5.15.69
• 5.15.70
• 5.15.71
• 5.15.72
• 5.15.73
• 5.15.74
• 5.15.75
• 5.15.76
• 5.15.77
• 5.15.78
• 5.15.79
• 5.15.80
• 5.15.81
• 5.15.82
• 5.15.83
• 5.15.84
• 5.15.85
• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.0.5
• 6.0.6
• 6.0.7
• 6.0.8
• 6.0.9
• 6.0.10
• 6.0.11
• 6.0.12
• 6.0.13
• 6.0.14
• 6.0.15
• 6.1.0
• 6.1.1

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 276834
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-50567

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.9.337/4.14.303/4.19.270/5.4.229/5.10.163/5.15.86/6.0.16/6.1.2
Patch: d3b486946a4e62c7ef6023f7d9c1d049051384ba/3115313cf03113e87c87adee18ee49a20bbdb9ba/eea87acb6027be3dd4d3c57186bb22800d57fdda/359616ce587e524107730504891afa4b1a8be58c/3e997e4ce8ae7ab89d72334120f6aee49c5bbdbd/0536f76a2bca83d1a3740517ba22cc93a44b3099/2c575c8905f7a8b32d5611b91856b69bac2a5bf1/67973caae78e21ee46a7281aaa8ca364eb9c444f/898f706695682b9954f280d95e49fa86ffa55d08

Timelineinfo

10/22/2025 Advisory disclosed
10/22/2025 +0 days CVE reserved
10/22/2025 +0 days VulDB entry created
02/28/2026 +129 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50567 (🔒)
GCVE (CVE): GCVE-0-2022-50567
GCVE (VulDB): GCVE-100-329327
CERT Bund: WID-SEC-2025-2394 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/22/2025 16:29
Updated: 02/28/2026 06:50
Changes: 10/22/2025 16:29 (59), 10/23/2025 22:07 (7), 11/28/2025 11:10 (2), 01/02/2026 04:02 (1), 02/28/2026 06:50 (1)
Complete: 🔍
Cache ID: 216::103

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