VDB-306964 · CVE-2022-49815 · GCVE-0-2022-49815

Linux Kernel up to 6.0.9 erofs xas_retry iteration

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5.5	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.0.9. This impacts the function xas_retry of the component erofs. Executing a manipulation can lead to iteration. The identification of this vulnerability is CVE-2022-49815. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.0.9. This vulnerability affects the function xas_retry of the component erofs. The manipulation with an unknown input leads to a iteration vulnerability. The CWE definition for the vulnerability is CWE-834. The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: erofs: fix missing xas_retry() in fscache mode The xarray iteration only holds the RCU read lock and thus may encounter XA_RETRY_ENTRY if there's process modifying the xarray concurrently. This will cause oops when referring to the invalid entry. Fix this by adding the missing xas_retry(), which will make the iteration wind back to the root node if XA_RETRY_ENTRY is encountered.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2022-49815 since 05/01/2025. There are known technical details, but no exploit is available.

Upgrading to version 6.0.10 eliminates this vulnerability. Applying the patch dbc98fe99e17ed18f2f272d5fe880d844b1c68c3/37020bbb71d911431e16c2c940b97cf86ae4f2f6 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

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: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Iteration
CWE: CWE-834 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.0.10
Patch: dbc98fe99e17ed18f2f272d5fe880d844b1c68c3/37020bbb71d911431e16c2c940b97cf86ae4f2f6

Timelineinfo

05/01/2025 🔍
05/01/2025 +0 days 🔍
05/01/2025 +0 days 🔍
11/07/2025 +190 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49815 (🔍)
GCVE (CVE): GCVE-0-2022-49815
GCVE (VulDB): GCVE-100-306964

Entryinfo

Created: 05/01/2025 17:30
Updated: 11/07/2025 22:28
Changes: 05/01/2025 17:30 (60), 11/07/2025 22:28 (11)
Complete: 🔍
Cache ID: 216::103