CVE-2022-49739

gfs2: Always check inode size of inline inodes

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved: gfs2: Always check inode size of inline inodes Check if the inode size of stuffed (inline) inodes is within the allowed
range when reading inodes from disk (gfs2_dinode_in()). This prevents
us from on-disk corruption. The two checks in stuffed_readpage() and gfs2_unstuffer_page() that just
truncate inline data to the maximum allowed size don't actually make
sense, and they can be removed now as well.

In the Linux kernel, the following vulnerability has been resolved: gfs2: Always check inode size of inline inodes Check if the inode size of stuffed (inline) inodes is within the allowed range when reading inodes from disk (gfs2_dinode_in()). This prevents us from on-disk corruption. The two checks in stuffed_readpage() and gfs2_unstuffer_page() that just truncate inline data to the maximum allowed size don't actually make sense, and they can be removed now as well.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2025-03-27 CVE Reserved
2025-03-27 CVE Published
2025-04-28 EPSS Updated
2025-05-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/45df749f827c286adbc951f2a4865b67f0442ba9	2023-04-05
https://git.kernel.org/stable/c/4d4cb76636134bf9a0c9c3432dae936f99954586	2023-04-05
https://git.kernel.org/stable/c/7c414f6f06e9a3934901b6edc3177ae5a1e07094	2023-04-05
https://git.kernel.org/stable/c/46c9088cabd4d0469fdb61ac2a9c5003057fe94d	2023-02-09
https://git.kernel.org/stable/c/d458a0984429c2d47e60254f5bc4119cbafe83a2	2023-02-09
https://git.kernel.org/stable/c/70376c7ff31221f1d21db5611d8209e677781d3a	2022-12-06

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"				< 4.19.280 Search vendor "Linux" for product "Linux Kernel" and version " < 4.19.280"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.4.240 Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.240"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.10.177 Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.177"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.15.93 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.93"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.1.11 Search vendor "Linux" for product "Linux Kernel" and version " < 6.1.11"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.2 Search vendor "Linux" for product "Linux Kernel" and version " < 6.2"		en		Affected