CVE-2025-68357
Unknown Unknown - Not Provided
Use-After-Free in Linux Kernel iomap Async Read Handling

Publication date: 2025-12-24

Last updated on: 2026-03-25

Assigner: kernel.org

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.
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Meta Information
Published
2025-12-24
Last Modified
2026-03-25
Generated
2026-05-07
AI Q&A
2025-12-24
EPSS Evaluated
2026-05-05
NVD
CVE-2025-68357
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability relates to the Linux kernel's iomap subsystem where the workqueue s_dio_done_wq, used for handling read error completions, was not allocated for asynchronous reads. Since a commit changed error completions to run in user context and deferred them to this workqueue, the lack of allocation for async reads could cause issues in handling read errors properly.


How can this vulnerability impact me? :

The vulnerability could lead to improper handling of read errors during asynchronous reads in the Linux kernel, potentially causing system instability or data read failures.


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