CVE-2023-53275
Vulnerability Scoring
Analysis In Progress
CVE-2023-53275 Vulnerability Analysis & Exploit Details
CVE-2023-53275
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2023-53275 Details
Status: Awaiting Analysis
Published on: 16 Sep 2025, 08:15 UTC
CVSS Release:
CVE-2023-53275 Vulnerability Summary
CVE-2023-53275: In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync() The variable codec->regmap is often protected by the lock codec->regmap_lock when is accessed. However, it is accessed without holding the lock when is accessed in snd_hdac_regmap_sync(): if (codec->regmap) In my opinion, this may be a harmful race, because if codec->regmap is set to NULL right after the condition is checked, a null-pointer dereference can occur in the called function regcache_sync(): map->lock(map->lock_arg); --> Line 360 in drivers/base/regmap/regcache.c To fix this possible null-pointer dereference caused by data race, the mutex_lock coverage is extended to protect the if statement as well as the function call to regcache_sync(). [ Note: the lack of the regmap_lock itself is harmless for the current codec driver implementations, as snd_hdac_regmap_sync() is only for PM runtime resume that is prohibited during the codec probe. But the change makes the whole code more consistent, so it's merged as is -- tiwai ]
Assessing the Risk of CVE-2023-53275
Access Complexity Graph
The exploitability of CVE-2023-53275 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2023-53275
No exploitability data is available for CVE-2023-53275.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2023-53275, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2023-53275, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2023-53275 does not compromise confidentiality.
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Integrity:
None
CVE-2023-53275 does not impact data integrity.
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Availability:
None
CVE-2023-53275 does not affect system availability.
CVE-2023-53275 References
External References
- https://git.kernel.org/stable/c/109f0aaa0b8838a88af9125b79579023539300a7
- https://git.kernel.org/stable/c/1f4a08fed450db87fbb5ff5105354158bdbe1a22
- https://git.kernel.org/stable/c/8703b26387e1fa4f8749db98d24c67617b873acb
- https://git.kernel.org/stable/c/9f9eed451176ffcac6b5ba0f6dae1a6b4a1cb0eb
- https://git.kernel.org/stable/c/b32e40379e5b2814de0c4bc199edc2d82317dc07
- https://git.kernel.org/stable/c/cdd412b528dee6e0851c4735d6676ec138da13a4
CWE Common Weakness Enumeration
Unknown
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