Riskcovery

CVE-2025-68814

io_uring: fix filename leak in __io_openat_prep()

State
Published
Severity
Not scored
Published
Jan 13, 2026
Updated
Oct 15, 2026
Reserved
Dec 24, 2025

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • b9445598d8c60a1379887b957024b71343965f74 to before 2420ef01b2e836fbc05a0a8c73a1016504eb0458Affected
  • b9445598d8c60a1379887b957024b71343965f74 to before 8f44c4a550570cd5903625133f938c6b51310c9bAffected
  • b9445598d8c60a1379887b957024b71343965f74 to before 18b99fa603d0df5e1c898699c17d3b92ddc80746Affected
  • b9445598d8c60a1379887b957024b71343965f74 to before e232269d511566b1f80872256a48593acc1becf4Affected
  • b9445598d8c60a1379887b957024b71343965f74 to before 7fbfb85b05bc960cc50e09d03e5e562131e48d45Affected
  • b9445598d8c60a1379887b957024b71343965f74 to before b14fad555302a2104948feaff70503b64c80ac01Affected
LinuxLinux
  • 5.15Affected
  • before 5.15Not affected
  • 5.15.198 through 5.15.*Not affected
  • 6.1.160 through 6.1.*Not affected
  • 6.6.120 through 6.6.*Not affected
  • 6.12.64 through 6.12.*Not affected
  • 6.18.3 through 6.18.*Not affected
  • 6.19 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.