CVE-2022-49786

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: properly pin the parent in blkcg_css_online blkcg_css_online is supposed to pin the blkcg of the parent, but 397c9f46ee4d refactored things and along the way, changed it to pin the css instead. This results in extra pins, and we end up leaking blkcgs and cgroups.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/d118247e404d6338f7b90636a3c6b95a387ed163	Patch
https://git.kernel.org/stable/c/d7dbd43f4a828fa1d9a8614d5b0ac40aee6375fe	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.1:rc5::::::

History

07 Nov 2025, 17:49

Type	Values Removed	Values Added
CPE		cpe:2.3:o:linux:linux_kernel:6.1:rc2:::::: cpe:2.3:o:linux:linux_kernel:6.1:rc3:::::: cpe:2.3:o:linux:linux_kernel:6.1:rc4:::::: cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:6.1:rc1:::::: cpe:2.3:o:linux:linux_kernel:6.1:rc5::::::
First Time		Linux linux Kernel Linux
CWE		NVD-CWE-noinfo
References	~~() https://git.kernel.org/stable/c/d118247e404d6338f7b90636a3c6b95a387ed163 -~~	() https://git.kernel.org/stable/c/d118247e404d6338f7b90636a3c6b95a387ed163 - Patch
References	~~() https://git.kernel.org/stable/c/d7dbd43f4a828fa1d9a8614d5b0ac40aee6375fe -~~	() https://git.kernel.org/stable/c/d7dbd43f4a828fa1d9a8614d5b0ac40aee6375fe - Patch
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5

Information

Published : 2025-05-01 15:16

Updated : 2025-11-07 17:49

NVD link : CVE-2022-49786

Mitre link : CVE-2022-49786

CVE.ORG link : CVE-2022-49786

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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