Skip to content
CVE PROGRAM SOURCE RECORDUnscored

CVE-2025-68814

io_uring: fix filename leak in __io_openat_prep()

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • b9445598d8c60a1379887b957024b71343965f74 to < 2420ef01b2e836fbc05a0a8c73a1016504eb0458affected
  • b9445598d8c60a1379887b957024b71343965f74 to < 8f44c4a550570cd5903625133f938c6b51310c9baffected
  • b9445598d8c60a1379887b957024b71343965f74 to < 18b99fa603d0df5e1c898699c17d3b92ddc80746affected
  • b9445598d8c60a1379887b957024b71343965f74 to < e232269d511566b1f80872256a48593acc1becf4affected
  • b9445598d8c60a1379887b957024b71343965f74 to < 7fbfb85b05bc960cc50e09d03e5e562131e48d45affected
  • b9445598d8c60a1379887b957024b71343965f74 to < b14fad555302a2104948feaff70503b64c80ac01affected

Linux Linux

Default version status: affected

  • 5.15affected
  • 0 to < 5.15unaffected
  • 5.15.198 to ≤ 5.15.*unaffected
  • 6.1.160 to ≤ 6.1.*unaffected
  • 6.6.120 to ≤ 6.6.*unaffected
  • 6.12.64 to ≤ 6.12.*unaffected
  • 6.18.3 to ≤ 6.18.*unaffected
  • 6.19 to ≤ *unaffected

References