CVE-2022-49852

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49852
In the Linux kernel, the following vulnerability has been resolved: riscv: process: fix kernel info leakage thread_struct's s[12] may contain random kernel memory content, which may be finally leaked to userspace. This is a security hole. Fix it by clearing the s[12] array in thread_struct when fork. As for kthread case, it's better to clear the s[12] array as well.

7.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68 Patch
https://git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4b Patch
https://git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30 Patch
https://git.kernel.org/stable/c/c5c0b3167537793a7cf936fb240366eefd2fc7fb Patch
https://git.kernel.org/stable/c/cc36c7fa5d9384602529ba3eea8c5daee7be4dbc Patch
https://git.kernel.org/stable/c/e56d18a976dda653194218df6d40d8122c775712 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:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*
History

23 Jan 2026, 16:49

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68 - () https://git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68 - Patch
References () https://git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4b - () https://git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4b - Patch
References () https://git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30 - () https://git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30 - Patch
References () https://git.kernel.org/stable/c/c5c0b3167537793a7cf936fb240366eefd2fc7fb - () https://git.kernel.org/stable/c/c5c0b3167537793a7cf936fb240366eefd2fc7fb - Patch
References () https://git.kernel.org/stable/c/cc36c7fa5d9384602529ba3eea8c5daee7be4dbc - () https://git.kernel.org/stable/c/cc36c7fa5d9384602529ba3eea8c5daee7be4dbc - Patch
References () https://git.kernel.org/stable/c/e56d18a976dda653194218df6d40d8122c775712 - () https://git.kernel.org/stable/c/e56d18a976dda653194218df6d40d8122c775712 - Patch
First Time Linux
Linux linux Kernel
CPE cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
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:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.1
CWE NVD-CWE-noinfo

02 May 2025, 13:53

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: riscv: proceso: corrección de fuga de información del kernel. El array s[12] de thread_struct puede contener contenido aleatorio de memoria del kernel, que podría filtrarse al espacio de usuario. Esto representa una vulnerabilidad de seguridad. Para solucionarlo, borre la matriz s[12] de thread_struct al bifurcar. En el caso de kthread, es recomendable borrar también la matriz s[12].

01 May 2025, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-01 15:16

Updated : 2026-01-23 16:49

NVD link : CVE-2022-49852

Mitre link : CVE-2022-49852

CVE.ORG link : CVE-2022-49852

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo