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CVE-2025-68814

UnknownEPSS 0.17%

Last modified

CVE-2025-68814 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: io_uring: fix filename leak in __io_openat_prep() __io_openat_prep() allocates a struct filename using getname(). However, for the condition of the file being installed in the fixed file table as well as having O_CLOEXEC flag set, the function returns early. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix filename leak in __io_openat_prep() __io_openat_prep() allocates a struct filename using getname(). However, for the condition of the file being installed in the fixed file table as well as having O_CLOEXEC flag set, the function returns early. At that point, the request doesn't have REQ_F_NEED_CLEANUP flag set. Due to this, the memory for the newly allocated struct filename is not cleaned up, causing a memory leak. Fix this by setting the REQ_F_NEED_CLEANUP for the request just after the successful getname() call, so that when the request is torn down, the filename will be cleaned up, along with other resources needing cleanup.

Metrics

EPSS Probability
0.17%

6.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= b9445598d8c60a1379887b957024b71343965f74, < 2420ef01b2e836fbc05a0a8c73a1016504eb0458; >= b9445598d8c60a1379887b957024b71343965f74, < 8f44c4a550570cd5903625133f938c6b51310c9b; >= b9445598d8c60a1379887b957024b71343965f74, < 18b99fa603d0df5e1c898699c17d3b92ddc80746; >= b9445598d8c60a1379887b957024b71343965f74, < e232269d511566b1f80872256a48593acc1becf4; >= b9445598d8c60a1379887b957024b71343965f74, < 7fbfb85b05bc960cc50e09d03e5e562131e48d45; >= b9445598d8c60a1379887b957024b71343965f74, < b14fad555302a2104948feaff70503b64c80ac01
LinuxLinux5.15

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2025-68814?
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix filename leak in __io_openat_prep() __io_openat_prep() allocates a struct filename using getname(). However, for the condition of the file being installed in the fixed file table as well as having O_CLOEXEC flag set, the function returns early. At that point, the request doesn't have REQ_F_NEED_CLEANUP flag set. Due to this, the memory for the newly allocated struct filename is not cleaned up, causing a memory leak. Fix this by setting the REQ_F_NEED_CLEANUP for the request just after the successful getname() call, so that when the request is torn down, the filename will be cleaned up, along with other resources needing cleanup.
How severe is CVE-2025-68814?
Severity scoring for CVE-2025-68814 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2025-68814?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST