CVE-2022-50569
Vulnerability Scoring
Analysis In Progress
CVE-2022-50569 Vulnerability Analysis & Exploit Details
CVE-2022-50569
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-2022-50569 Details
Status: Awaiting Analysis
Published on: 22 Oct 2025, 14:15 UTC
CVSS Release:
CVE-2022-50569 Vulnerability Summary
CVE-2022-50569: In the Linux kernel, the following vulnerability has been resolved: xfrm: Update ipcomp_scratches with NULL when freed Currently if ipcomp_alloc_scratches() fails to allocate memory ipcomp_scratches holds obsolete address. So when we try to free the percpu scratches using ipcomp_free_scratches() it tries to vfree non existent vm area. Described below: static void * __percpu *ipcomp_alloc_scratches(void) { ... scratches = alloc_percpu(void *); if (!scratches) return NULL; ipcomp_scratches does not know about this allocation failure. Therefore holding the old obsolete address. ... } So when we free, static void ipcomp_free_scratches(void) { ... scratches = ipcomp_scratches; Assigning obsolete address from ipcomp_scratches if (!scratches) return; for_each_possible_cpu(i) vfree(*per_cpu_ptr(scratches, i)); Trying to free non existent page, causing warning: trying to vfree existent vm area. ... } Fix this breakage by updating ipcomp_scrtches with NULL when scratches is freed
Assessing the Risk of CVE-2022-50569
Access Complexity Graph
The exploitability of CVE-2022-50569 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-2022-50569
No exploitability data is available for CVE-2022-50569.
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-2022-50569, 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-2022-50569, 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-2022-50569 does not compromise confidentiality.
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Integrity:
None
CVE-2022-50569 does not impact data integrity.
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Availability:
None
CVE-2022-50569 does not affect system availability.
CVE-2022-50569 References
External References
- https://git.kernel.org/stable/c/03155680191ef0f004b1d6a5714c5b8cd271ab61
- https://git.kernel.org/stable/c/18373ed500f7cd53e24d9b0bd0f1c09d78dba87e
- https://git.kernel.org/stable/c/1e8abde895b3ac6a368cbdb372e8800c49e73a28
- https://git.kernel.org/stable/c/2c19945ce8095d065df550e7fe350cd5cc40c6e6
- https://git.kernel.org/stable/c/8a04d2fc700f717104bfb95b0f6694e448a4537f
- https://git.kernel.org/stable/c/a39f456d62810c0efb43cead22f98d95b53e4b1a
- https://git.kernel.org/stable/c/be81c44242b20fc3bdcc73480ef8aaee56f5d0b6
- https://git.kernel.org/stable/c/debca61df6bc2f65e020656c9c5b878d6b38d30f
- https://git.kernel.org/stable/c/f3bdba4440d82e0da2b1bfc35d3836c8a8e00677
CWE Common Weakness Enumeration
Unknown
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