CVE-2026-58848: Android Linux Kernel Unauthorized Access Vulnerability
Summary
CVE-2026-58848: In multiple functions of alloc.c, there is a possible unauthorized read/write access due to a race condition. Affects :linux_kernel: versions >= :0, < :2026-09-05. Fixed in :2026-09-05. How to fix ↓
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Background
The Android Linux Kernel is a core component of the Android operating system, responsible for managing hardware resources and providing essential services to applications. It is designed for performance, security, and efficiency, serving as the bridge between the hardware and software layers. However, vulnerabilities within the kernel can lead to significant security risks, including unauthorized access and privilege escalation.
Vulnerability Detail
In multiple functions of alloc.c, there exists a race condition that can lead to unauthorized read/write access. This vulnerability allows local escalation of privilege without requiring additional execution privileges or user interaction for exploitation. The affected functions include hyp_alloc_init, hyp_alloc_reclaim, hyp_allocator_unmap, hyp_alloc_refill, hyp_allocator_map, and hyp_alloc_reclaimable, all of which are critical for memory allocation and management within the kernel.
How To Fix
Minimum fixed version
:2026-09-05
This is the first release that contains the fix.
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Workaround
Currently, there are no specific workarounds available for this vulnerability. The best course of action is to apply the patch as soon as it is available.
Conclusion
The CVE-2026-58848 vulnerability in the Android Linux Kernel poses a significant risk due to its potential for unauthorized access and privilege escalation. Users are strongly advised to update their kernel to the patched version released on September 5, 2026, to safeguard their systems against exploitation.
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FAQ
CVE-2026-58848 is a vulnerability in the Android Linux Kernel that allows unauthorized read/write access due to a race condition, potentially leading to local privilege escalation.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. By simply using the gradle.lockfile, you can check if your application is affected without requiring access to the code or installation.
The primary risk is local escalation of privilege, which could allow an attacker to gain unauthorized access to system resources and potentially compromise the integrity of the system.
No, user interaction is not needed for exploitation, making this vulnerability particularly concerning.
While there are no specific workarounds, it is crucial to prioritize applying the patch as soon as possible to mitigate the risks associated with this vulnerability.
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