CVE-2022-50206
Vulnerability Scoring
Analysis In Progress
CVE-2022-50206 Vulnerability Analysis & Exploit Details
CVE-2022-50206
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-2022-50206 Details
Status: Awaiting Analysis
Published on: 18 Jun 2025, 11:15 UTC
CVSS Release:
CVE-2022-50206 Vulnerability Summary
CVE-2022-50206: In the Linux kernel, the following vulnerability has been resolved: arm64: fix oops in concurrently setting insn_emulation sysctls emulation_proc_handler() changes table->data for proc_dointvec_minmax and can generate the following Oops if called concurrently with itself: | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010 | Internal error: Oops: 96000006 [#1] SMP | Call trace: | update_insn_emulation_mode+0xc0/0x148 | emulation_proc_handler+0x64/0xb8 | proc_sys_call_handler+0x9c/0xf8 | proc_sys_write+0x18/0x20 | __vfs_write+0x20/0x48 | vfs_write+0xe4/0x1d0 | ksys_write+0x70/0xf8 | __arm64_sys_write+0x20/0x28 | el0_svc_common.constprop.0+0x7c/0x1c0 | el0_svc_handler+0x2c/0xa0 | el0_svc+0x8/0x200 To fix this issue, keep the table->data as &insn->current_mode and use container_of() to retrieve the insn pointer. Another mutex is used to protect against the current_mode update but not for retrieving insn_emulation as table->data is no longer changing.
Assessing the Risk of CVE-2022-50206
Access Complexity Graph
The exploitability of CVE-2022-50206 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-2022-50206
No exploitability data is available for CVE-2022-50206.
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-2022-50206, 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-2022-50206, 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-2022-50206 does not compromise confidentiality.
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Integrity:
None
CVE-2022-50206 does not impact data integrity.
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Availability:
None
CVE-2022-50206 does not affect system availability.
CVE-2022-50206 References
External References
- https://git.kernel.org/stable/c/04549063d5701976034d8c2bfda3d3a8cbf0409f
- https://git.kernel.org/stable/c/07022e07017ee5540f5559b0aeb916e8383c1e1a
- https://git.kernel.org/stable/c/353b4673d01c512303c45cf2346f630cda73b5c9
- https://git.kernel.org/stable/c/6a2fd114678d7fc1b5a0f8865ae98f1c17787455
- https://git.kernel.org/stable/c/9d5fec6ba2e4117d196a8259ab54615ffe562460
- https://git.kernel.org/stable/c/af483947d472eccb79e42059276c4deed76f99a6
- https://git.kernel.org/stable/c/b51881b1da57fe9877125dfdd0aac5172958fcfd
- https://git.kernel.org/stable/c/cc69ef95988b9ef2fc730ec452a7441efb90ef5e
CWE Common Weakness Enumeration
Unknown
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