What’s Vulnerable › Vulnerabilities

CVE-2025-68357: iomap: allocate s_dio_done_wq for async reads as well

• Severity: unknown
• 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: 2025-12-24 · updated 2026-10-13

Description

In the Linux kernel, the following vulnerability has been resolved: iomap: allocate s_dio_done_wq for async reads as well Since commit 222f2c7c6d14 ("iomap: always run error completions in user context"), read error completions are deferred to s_dio_done_wq. This means the workqueue also needs to be allocated for async reads.

Affected products

• Linux kernel: from 6.17.13 before 6.18; from 6.6.120 before 6.6.130; from 6.12.63 before 6.12.64 — fixed in 6.12.64, 6.18, 6.6.130

How to fix

Upgrade to a fixed version: Linux kernel 6.12.64, 6.18, 6.6.130. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/51297686e00f4d5d941b0f20f12b2f12879d753c
• https://git.kernel.org/stable/c/7fd8720dff2d9c70cf5a1a13b7513af01952ec02
• https://git.kernel.org/stable/c/bfc717be833fd9ee41443fde2dea0352a7fca333
• https://git.kernel.org/stable/c/c67775cf0da2407f113c1229e350758f4dca0f51

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