CVE-2025-40364

io_uring: fix io_req_prep_async with provided buffers

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix io_req_prep_async with provided buffers io_req_prep_async() can import provided buffers, commit the ring state by giving up on that before, it'll be reimported later if needed.

N/A

CVSS

Severity:

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/a1b17713b32c75a90132ea2f92b1257f3bbc20f3
https://git.kernel.org/stable/c/a94592ec30ff67dc36c424327f1e0a9ceeeb9bd3

Frequently Asked Questions

What is the severity of CVE-2025-40364?: CVE-2025-40364 has not yet been assigned a CVSS score.
How to fix CVE-2025-40364?: To fix CVE-2025-40364, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-40364 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-40364 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-40364?: CVE-2025-40364 affects Linux Linux, Linux Linux.

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