Description (CNA)
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()'.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a before 994d6303ed0b84cbc795bb5becf7ed6de40d3f3c; affected 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a before 3bf1378747e251571e0de15e7e0a6bf2919044e7; affected 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a before 96a5cb7072cabbac5c66ac9318242c3bdceebb68; affected 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a before 4a03d69cece145e4fb527464be29c3806aa3221e; affected 65334e64a493c6a0976de7ad56bf8b7a9ff04b4a before 6af6e49a76c9af7d42eb923703e7648cb2bf401a |
| Linux / Linux | affected 6.4; unaffected 0 before 6.4; unaffected 6.6.120 through 6.6.*; unaffected 6.12.63 through 6.12.*; unaffected 6.17.13 through 6.17.*; unaffected 6.18.2 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/994d6303ed0b84cbc795bb5becf7ed6de40d3f3c
- https://git.kernel.org/stable/c/3bf1378747e251571e0de15e7e0a6bf2919044e7
- https://git.kernel.org/stable/c/96a5cb7072cabbac5c66ac9318242c3bdceebb68
- https://git.kernel.org/stable/c/4a03d69cece145e4fb527464be29c3806aa3221e
- https://git.kernel.org/stable/c/6af6e49a76c9af7d42eb923703e7648cb2bf401a