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CVE-2026-53380: media: rzv2h-ivc: Fix concurrent buffer list access

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-19 · updated 2026-07-29
• Weakness: CWE-787

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]

Affected products

• Linux kernel: from 6.19 before 7.0.9 — fixed in 7.0.9

How to fix

Upgrade to a fixed version: Linux kernel 7.0.9. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/72773ff1cdfaebc593f53b1719b2c1773ecf8c43
• https://git.kernel.org/stable/c/c746522bd3264132ab2e2382e96e19cdb8a6c1ba

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