CVE-2022-49168

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not clean up repair bio if submit fails The submit helper will always run bio_endio() on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs because we race with the endio function that is cleaning up the bio. Instead just return BLK_STS_OK as the repair function has to continue to process the rest of the pages, and the endio for the repair bio will do the appropriate cleanup for the page that it was given.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/7170875083254b51fcc5d67f96640977083f481e	Patch
https://git.kernel.org/stable/c/8cbc3001a3264d998d6b6db3e23f935c158abd4d	Patch
https://git.kernel.org/stable/c/d1cb11fb45ebbb1e7dfe5e9038b32ea72c184b14	Patch
https://git.kernel.org/stable/c/e76c78c48902dae6fa612749f59162bca0a79e0b	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

18 Nov 2025, 15:09

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/stable/c/7170875083254b51fcc5d67f96640977083f481e -~~	() https://git.kernel.org/stable/c/7170875083254b51fcc5d67f96640977083f481e - Patch

Information

Published : 2025-02-26 07:00

Updated : 2025-11-18 15:09

NVD link : CVE-2022-49168

Mitre link : CVE-2022-49168

CVE.ORG link : CVE-2022-49168

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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