CVE-2022-50205

ext2: Add more validity checks for inode counts

Severity Score

7.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

MITRE
TN

In the Linux kernel, the following vulnerability has been resolved: ext2: Add more validity checks for inode counts Add checks verifying number of inodes stored in the superblock matches
the number computed from number of inodes per group. Also verify we have
at least one block worth of inodes per group. This prevents crashes on
corrupted filesystems.

In the Linux kernel, the following vulnerability has been resolved: ext2: Add more validity checks for inode counts Add checks verifying number of inodes stored in the superblock matches the number computed from number of inodes per group. Also verify we have at least one block worth of inodes per group. This prevents crashes on corrupted filesystems.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2025-06-18 CVE Reserved
2025-06-18 CVE Published
2025-06-18 CVE Updated
2025-06-24 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (8)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/0bcdc31094a12b4baf59e241feabc9787cf635fa	2022-08-25
https://git.kernel.org/stable/c/07303a9abe3a997d9864fb4315e34b5acfe8fc25	2022-08-25
https://git.kernel.org/stable/c/b3f423683818cfe15de14d5d9dff44148ff16bbf	2022-08-25
https://git.kernel.org/stable/c/d08bb199a406424a8ed0009efdf41710e6d849ee	2022-08-21
https://git.kernel.org/stable/c/96b18d3a1be0354ccce43f0ef61b5a3d7e432552	2022-08-17
https://git.kernel.org/stable/c/7a48fdc88a3c35e046a6a0a38eba00f21c65b16e	2022-08-17
https://git.kernel.org/stable/c/5e63c5fe9123fa76ffaeff26c211308736ec3a07	2022-08-17
https://git.kernel.org/stable/c/fa78f336937240d1bc598db817d638086060e7e9	2022-07-26

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.14.291 Search vendor "Linux" for product "Linux Kernel" and version " < 4.14.291"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.19.256 Search vendor "Linux" for product "Linux Kernel" and version " < 4.19.256"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.4.211 Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.211"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.10.137 Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.137"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.15.61 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.61"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.18.18 Search vendor "Linux" for product "Linux Kernel" and version " < 5.18.18"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.19.2 Search vendor "Linux" for product "Linux Kernel" and version " < 5.19.2"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.0 Search vendor "Linux" for product "Linux Kernel" and version " < 6.0"		en		Affected