CVE-2021-47360

In the Linux kernel, the following vulnerability has been resolved: binder: make sure fd closes complete During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object cleanup may close 1 or more fds. The close operations are completed using the task work mechanism -- which means the thread needs to return to userspace or the file object may never be dereferenced -- which can lead to hung processes. Force the binder thread back to userspace if an fd is closed during BC_FREE_BUFFER handling.

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/5fdb55c1ac9585eb23bb2541d5819224429e103d	Patch
https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e	Patch
https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621	Patch
https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7	Patch
https://git.kernel.org/stable/c/5fdb55c1ac9585eb23bb2541d5819224429e103d	Patch
https://git.kernel.org/stable/c/aa2c274c279ff365a06a4cba263f04965895166e	Patch
https://git.kernel.org/stable/c/b95483d8d94b41fa31a84c1d86710b7907a37621	Patch
https://git.kernel.org/stable/c/d5b0473707fa53b03a5db0256ce62b2874bddbc7	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::::::::
	cpe:2.3:o:linux:linux_kernel:4.20.1:::::::*
	cpe:2.3:o:linux:linux_kernel:5.15:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.15:rc2::::::

History

No history.

Information

Published : 2024-05-21 15:15

Updated : 2025-05-12 19:54

NVD link : CVE-2021-47360

Mitre link : CVE-2021-47360

CVE.ORG link : CVE-2021-47360

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-252

Unchecked Return Value

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