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CVE-2025-37978: block: integrity: Do not call set_page_dirty_lock()

• Severity: medium (CVSS 5.5 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: 2025-05-20 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: block: integrity: Do not call set_page_dirty_lock() Placing multiple protection information buffers inside the same page can lead to oopses because set_page_dirty_lock() can't be called from interrupt context. Since a protection information buffer is not backed by a file there is no point in setting its page dirty, there is nothing to synchronize. Drop the call to set_page_dirty_lock() and remove the last argument to bio_integrity_unpin_bvec().

Affected products

• Linux kernel: from 6.8 before 6.12.25; from 6.13 before 6.14.4; 6.15-rc1, 6.15-rc2 — fixed in 6.12.25, 6.14.4

How to fix

Upgrade to a fixed version: Linux kernel 6.12.25, 6.14.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/39e160505198ff8c158f11bce2ba19809a756e8b
• https://git.kernel.org/stable/c/9487fc1a10b3aa89feb24e7cedeccaaf63074617
• https://git.kernel.org/stable/c/c38a005e6efb9ddfa06bd8353b82379d6fd5d6c4

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