CVE-2025-68744
bpf: Free special fields when update [lru_,]percpu_hash maps
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: bpf: Free special fields when update [lru_,]percpu_hash maps As [lru_,]percpu_hash maps support BPF_KPTR_{REF,PERCPU}, missing calls to 'bpf_obj_free_fields()' in 'pcpu_copy_value()' could cause the memory referenced by BPF_KPTR_{REF,PERCPU} fields to be held until the map gets freed. Fix this by calling 'bpf_obj_free_fields()' after 'copy_map_value[,_long]()' in 'pcpu_copy_value()'.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 24, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
65334e64a493c6a0976de7ad56bf8b7a9ff04b4a < 994d6303ed0b84cbc795bb5becf7ed6de40d3f3c 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a < 3bf1378747e251571e0de15e7e0a6bf2919044e7 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a < 96a5cb7072cabbac5c66ac9318242c3bdceebb68 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a < 4a03d69cece145e4fb527464be29c3806aa3221e 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a < 6af6e49a76c9af7d42eb923703e7648cb2bf401a
Linux / Linux
6.4
References
git.kernel.org: https://git.kernel.org/stable/c/994d6303ed0b84cbc795bb5becf7ed6de40d3f3c git.kernel.org: https://git.kernel.org/stable/c/3bf1378747e251571e0de15e7e0a6bf2919044e7 git.kernel.org: https://git.kernel.org/stable/c/96a5cb7072cabbac5c66ac9318242c3bdceebb68 git.kernel.org: https://git.kernel.org/stable/c/4a03d69cece145e4fb527464be29c3806aa3221e git.kernel.org: https://git.kernel.org/stable/c/6af6e49a76c9af7d42eb923703e7648cb2bf401a