CVE-2022-50421

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

I

n the Linux kernel, the following vulnerability has been resolved: rpmsg: char: Avoid double destroy of default endpoint The rpmsg_dev_remove() in rpmsg_core is the place for releasing this default endpoint. So need to avoid destroying the default endpoint in rpmsg_chrdev_eptdev_destroy(), this should be the same as rpmsg_eptdev_release(). Otherwise there will be double destroy issue that ept->refcount report warning: refcount_t: underflow; use-after-free. Call trace: refcount_warn_saturate+0xf8/0x150 virtio_rpmsg_destroy_ept+0xd4/0xec rpmsg_dev_remove+0x60/0x70 The issue can be reproduced by stopping remoteproc before closing the /dev/rpmsgX.

References

Link	Resource
https://git.kernel.org/stable/c/3f20ef7a845c2c8d7ec82ecffa20d95cab5ecfeb	Patch
https://git.kernel.org/stable/c/467233a4ac29b215d492843d067a9f091e6bf0c5	Patch
https://git.kernel.org/stable/c/ef828a39d6a7028836eaf37df3ad568c8c2dd6f9	Patch

Configurations

Configuration 1 (hide)

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

History

11 Dec 2025, 18:24

Type	Values Removed	Values Added
CWE		CWE-416
References	~~() https://git.kernel.org/stable/c/3f20ef7a845c2c8d7ec82ecffa20d95cab5ecfeb -~~	() https://git.kernel.org/stable/c/3f20ef7a845c2c8d7ec82ecffa20d95cab5ecfeb - Patch
References	~~() https://git.kernel.org/stable/c/467233a4ac29b215d492843d067a9f091e6bf0c5 -~~	() https://git.kernel.org/stable/c/467233a4ac29b215d492843d067a9f091e6bf0c5 - Patch
References	~~() https://git.kernel.org/stable/c/ef828a39d6a7028836eaf37df3ad568c8c2dd6f9 -~~	() https://git.kernel.org/stable/c/ef828a39d6a7028836eaf37df3ad568c8c2dd6f9 - Patch
CPE		cpe:2.3:o:linux:linux_kernel::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8
First Time		Linux linux Kernel Linux

02 Oct 2025, 19:12

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-01 12:15

Updated : 2026-01-14 18:16

NVD link : CVE-2022-50421

Mitre link : CVE-2022-50421

CVE.ORG link : CVE-2022-50421

JSON object : View

Products Affected

linux_kernel

CWE

CWE-416

Use After Free

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