CVE-2024-53148
Linux Kernel - Comedi Partial Mapping Unmapping Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: comedi: Flush partial mappings in error case If some remap_pfn_range() calls succeeded before one failed, we still have buffer pages mapped into the userspace page tables when we drop the buffer reference with comedi_buf_map_put(bm). The userspace mappings are only cleaned up later in the mmap error path. Fix it by explicitly flushing all mappings in our VMA on the error path. See commit 79a61cc3fc04 ("mm: avoid leaving partial pfn mappings around in error case").
INFO
Published Date :
Dec. 24, 2024, 12:15 p.m.
Last Modified :
Dec. 24, 2024, 12:15 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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CVE-2024-53148.
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CVE-2024-53148 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-53148 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
Dec. 24, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: comedi: Flush partial mappings in error case If some remap_pfn_range() calls succeeded before one failed, we still have buffer pages mapped into the userspace page tables when we drop the buffer reference with comedi_buf_map_put(bm). The userspace mappings are only cleaned up later in the mmap error path. Fix it by explicitly flushing all mappings in our VMA on the error path. See commit 79a61cc3fc04 ("mm: avoid leaving partial pfn mappings around in error case"). Added Reference https://git.kernel.org/stable/c/16c507df509113c037cdc0ba642b9ab3389bd26c Added Reference https://git.kernel.org/stable/c/297f14fbb81895f4ccdb0ad25d196786d6461e00 Added Reference https://git.kernel.org/stable/c/57f048c2d205b85e34282a9b0b0ae177e84c2f44 Added Reference https://git.kernel.org/stable/c/8797b7712de704dc231f9e821d8eb3b9aeb3a032 Added Reference https://git.kernel.org/stable/c/9b07fb464eb69a752406e78e62ab3a60bfa7b00d Added Reference https://git.kernel.org/stable/c/b9322408d83accc8b96322bc7356593206288c56 Added Reference https://git.kernel.org/stable/c/c6963a06ce5c61d3238751ada04ee1569663a828 Added Reference https://git.kernel.org/stable/c/ce8f9fb651fac95dd41f69afe54d935420b945bd
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-53148 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-2024-53148
weaknesses.