CVE-2026-53380
Received Received - Intake

Race Condition in Linux Kernel rzv2h-ivc Driver

Publication date: 2026-07-19

Last updated on: 2026-07-19

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: media: rzv2h-ivc: Fix concurrent buffer list access The list of buffers (`rzv2h_ivc::buffers.queue`) is protected by a spinlock (`rzv2h_ivc::buffers.lock`). However, in `rzv2h_ivc_transfer_buffer()`, which runs in a separate workqueue, the `list_del()` call is executed without holding the spinlock, which makes it possible for the list to be concurrently modified Fix that by removing a buffer from the list in the lock protected section. [assign ivc->buffers.curr in critical section as reported by Barnabas]

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Meta Information

Published
2026-07-19
Last Modified
2026-07-19
Generated
2026-07-20
AI Q&A
2026-07-19
EPSS Evaluated
N/A
NVD
CVE-2026-53380
EUVD
EUVD-2026-45453

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

Helpful Resources

Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is in the Linux kernel's media subsystem, specifically in the rzv2h-ivc driver. It involves a race condition where a list of buffers can be accessed concurrently without proper locking. The spinlock protecting the buffer list is not held when removing a buffer in a workqueue, allowing the list to be modified simultaneously.

Detection Guidance

This vulnerability involves concurrent access to a buffer list in the Linux kernel's rzv2h-ivc driver. Detection requires checking for kernel logs or crashes related to media subsystem errors, particularly involving rzv2h-ivc or buffer management. Use commands like dmesg | grep rzv2h-ivc or journalctl -k | grep rzv2h-ivc to inspect kernel logs for anomalies.

Impact Analysis

This could lead to system instability, crashes, or unexpected behavior due to corrupted buffer list states. An attacker with local access might exploit this to cause denial-of-service or potentially escalate privileges.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR, HIPAA, or similar standards. It is a local kernel-level issue involving concurrent buffer list access in the Linux media subsystem, which could lead to data corruption or crashes but does not involve data exposure or privacy violations typical of compliance concerns.

Mitigation Strategies

Apply the latest Linux kernel update that includes the fix for CVE-2026-53380. If immediate patching is not possible, consider disabling the rzv2h-ivc driver module if it is not critical to your system's operation. Monitor kernel logs for signs of exploitation or crashes.

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