CVE-2022-49852
Linux RISC-V Process Info Leak Vulnerability
Description
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.
INFO
Published Date :
May 1, 2025, 3:16 p.m.
Last Modified :
May 2, 2025, 1:53 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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information, practical solutions, and valuable tools related to
CVE-2022-49852.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2022-49852 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49852 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 01, 2025
Action Type Old Value New Value Added Description 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. Added Reference https://git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68 Added Reference https://git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4b Added Reference https://git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30 Added Reference https://git.kernel.org/stable/c/c5c0b3167537793a7cf936fb240366eefd2fc7fb Added Reference https://git.kernel.org/stable/c/cc36c7fa5d9384602529ba3eea8c5daee7be4dbc Added Reference https://git.kernel.org/stable/c/e56d18a976dda653194218df6d40d8122c775712
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49852 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49852
weaknesses.