CVE-2025-68744
- Source
- https://cve.org/CVERecord?id=CVE-2025-68744
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-68744.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-68744
- Downstream
- Related
- Published
- 2025-12-24T12:09:40.839Z
- Modified
- 2026-03-12T04:31:54.515365Z
- Summary
- bpf: Free special fields when update [lru_,]percpu_hash maps
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: Free special fields when update [lru_,]percpu_hash maps
As [lru_,]percpuhash maps support BPFKPTR_{REF,PERCPU}, missing calls to 'bpfobjfreefields()' in 'pcpucopyvalue()' could cause the memory referenced by BPFKPTR_{REF,PERCPU} fields to be held until the map gets freed.
Fix this by calling 'bpfobjfreefields()' after 'copymapvalue,_long' in 'pcpucopy_value()'.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68744.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/3bf1378747e251571e0de15e7e0a6bf2919044e7
- https://git.kernel.org/stable/c/4a03d69cece145e4fb527464be29c3806aa3221e
- https://git.kernel.org/stable/c/6af6e49a76c9af7d42eb923703e7648cb2bf401a
- https://git.kernel.org/stable/c/96a5cb7072cabbac5c66ac9318242c3bdceebb68
- https://git.kernel.org/stable/c/994d6303ed0b84cbc795bb5becf7ed6de40d3f3c
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68744.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-68744
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced65334e64a493c6a0976de7ad56bf8b7a9ff04b4aFixed994d6303ed0b84cbc795bb5becf7ed6de40d3f3cFixed3bf1378747e251571e0de15e7e0a6bf2919044e7Fixed96a5cb7072cabbac5c66ac9318242c3bdceebb68Fixed4a03d69cece145e4fb527464be29c3806aa3221eFixed6af6e49a76c9af7d42eb923703e7648cb2bf401a