CVE-2025-68744
Published: Dec 24, 2025
Modified: May 11, 2026
Description
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 | Product | Versions |
|---|---|---|
Linux | Linux | affected 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a - < 994d6303ed0b84cbc795bb5becf7ed6de40d3f3caffected 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a - < 3bf1378747e251571e0de15e7e0a6bf2919044e7affected 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a - < 96a5cb7072cabbac5c66ac9318242c3bdceebb68affected 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a - < 4a03d69cece145e4fb527464be29c3806aa3221eaffected 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a - < 6af6e49a76c9af7d42eb923703e7648cb2bf401a |
Linux | Linux | affected 6.4unaffected 0 - < 6.4unaffected 6.6.120 - <= 6.6.*unaffected 6.12.63 - <= 6.12.*unaffected 6.17.13 - <= 6.17.*+2 more versions |
References
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