CVE-2024-46780
"Linux Nilfs2 Sysfs Attribute Denial of Service Vulnerability"
Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: protect references to superblock parameters exposed in sysfs The superblock buffers of nilfs2 can not only be overwritten at runtime for modifications/repairs, but they are also regularly swapped, replaced during resizing, and even abandoned when degrading to one side due to backing device issues. So, accessing them requires mutual exclusion using the reader/writer semaphore "nilfs->ns_sem". Some sysfs attribute show methods read this superblock buffer without the necessary mutual exclusion, which can cause problems with pointer dereferencing and memory access, so fix it.
INFO
Published Date :
Sept. 18, 2024, 8:15 a.m.
Last Modified :
Sept. 18, 2024, 8:15 a.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-2024-46780
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CVE-2024-46780
vulnerability anywhere in the article.
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CVE-2024-46780
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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CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 18, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: nilfs2: protect references to superblock parameters exposed in sysfs The superblock buffers of nilfs2 can not only be overwritten at runtime for modifications/repairs, but they are also regularly swapped, replaced during resizing, and even abandoned when degrading to one side due to backing device issues. So, accessing them requires mutual exclusion using the reader/writer semaphore "nilfs->ns_sem". Some sysfs attribute show methods read this superblock buffer without the necessary mutual exclusion, which can cause problems with pointer dereferencing and memory access, so fix it. Added Reference kernel.org https://git.kernel.org/stable/c/b90beafac05931cbfcb6b1bd4f67c1923f47040e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ba97ba173f9625d5f34a986088979eae8b80d38e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/157c0d94b4c40887329418c70ef4edd1a8d6b4ed [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b14e7260bb691d7f563f61da07d61e3c8b59a614 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/19cfeba0e4b8eda51484fcf8cf7d150418e1d880 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8c6e43b3d5f109cf9c61bc188fcc8175404e924f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/962562d4c70c5cdeb4e955d63ff2017c4eca1aad [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/683408258917541bdb294cd717c210a04381931e [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-46780
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-2024-46780
weaknesses.