io_uring: fix filename leak in __io_openat_prep()
Summary
| CVE | CVE-2025-68814 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-01-13 16:16:03 UTC |
| Updated | 2026-07-14 13:18:00 UTC |
| 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. |
Risk And Classification
EPSS: 0.001730000 probability, percentile 0.068830000 (date 2026-07-14)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected b9445598d8c60a1379887b957024b71343965f74 2420ef01b2e836fbc05a0a8c73a1016504eb0458 git | Not specified |
| CNA | Linux | Linux | affected b9445598d8c60a1379887b957024b71343965f74 8f44c4a550570cd5903625133f938c6b51310c9b git | Not specified |
| CNA | Linux | Linux | affected b9445598d8c60a1379887b957024b71343965f74 18b99fa603d0df5e1c898699c17d3b92ddc80746 git | Not specified |
| CNA | Linux | Linux | affected b9445598d8c60a1379887b957024b71343965f74 e232269d511566b1f80872256a48593acc1becf4 git | Not specified |
| CNA | Linux | Linux | affected b9445598d8c60a1379887b957024b71343965f74 7fbfb85b05bc960cc50e09d03e5e562131e48d45 git | Not specified |
| CNA | Linux | Linux | affected b9445598d8c60a1379887b957024b71343965f74 b14fad555302a2104948feaff70503b64c80ac01 git | Not specified |
| CNA | Linux | Linux | affected 5.15 | Not specified |
| CNA | Linux | Linux | unaffected 5.15 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.198 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.160 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.120 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.64 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.3 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.19 * original_commit_for_fix | Not specified |
| ADP | Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | affected V3.1.6 * custom | Not specified |
| ADP | Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | affected V3.1.6 * custom | Not specified |
| ADP | Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | affected V3.1.6 * custom | Not specified |
| ADP | Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | affected V3.1.6 * custom | Not specified |
| ADP | Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP | affected V3.1.6 * custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/2420ef01b2e836fbc05a0a8c73a1016504eb0458 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/7fbfb85b05bc960cc50e09d03e5e562131e48d45 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e232269d511566b1f80872256a48593acc1becf4 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b14fad555302a2104948feaff70503b64c80ac01 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| cert-portal.siemens.com/productcert/html/ssa-019113.html | 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e | cert-portal.siemens.com | |
| git.kernel.org/stable/c/8f44c4a550570cd5903625133f938c6b51310c9b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/18b99fa603d0df5e1c898699c17d3b92ddc80746 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.