CVE-2022-48816

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: lock against ->sock changing during sysfs read ->sock can be set to NULL asynchronously unless ->recv_mutex is held. So it is important to hold that mutex. Otherwise a sysfs read can trigger an oops. Commit 17f09d3f619a ("SUNRPC: Check if the xprt is connected before handling sysfs reads") appears to attempt to fix this problem, but it only narrows the race window.

CVSS v3 4.7 MEDIUM

4.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

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/9482ab4540f5bcc869b44c067ae99b5fca16bd07	Patch
https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90ee	Patch
https://git.kernel.org/stable/c/9482ab4540f5bcc869b44c067ae99b5fca16bd07	Patch
https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90ee	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:5.17:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.17:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.17:rc3::::::

History

06 Oct 2025, 17:07

Type	Values Removed	Values Added
CPE		cpe:2.3:o:linux:linux_kernel:5.17:rc3:::::: cpe:2.3:o:linux:linux_kernel:5.17:rc2:::::: cpe:2.3:o:linux:linux_kernel:5.17:rc1:::::: cpe:2.3:o:linux:linux_kernel::::::::
References	~~() https://git.kernel.org/stable/c/9482ab4540f5bcc869b44c067ae99b5fca16bd07 -~~	() https://git.kernel.org/stable/c/9482ab4540f5bcc869b44c067ae99b5fca16bd07 - Patch
References	~~() https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90ee -~~	() https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90ee - Patch
First Time		Linux Linux linux Kernel
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.7
CWE		CWE-476

Information

Published : 2024-07-16 12:15

Updated : 2025-10-06 17:07

NVD link : CVE-2022-48816

Mitre link : CVE-2022-48816

CVE.ORG link : CVE-2022-48816

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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