CVE-2022-50855
bpf: prevent leak of lsm program after failed attach
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: bpf: prevent leak of lsm program after failed attach In [0], we added the ability to bpf_prog_attach LSM programs to cgroups, but in our validation to make sure the prog is meant to be attached to BPF_LSM_CGROUP, we return too early if the check fails. This results in lack of decrementing prog's refcnt (through bpf_prog_put) leaving the LSM program alive past the point of the expected lifecycle. This fix allows for the decrement to take place. [0] https://lore.kernel.org/all/[email protected]/
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 30, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e < 82b39df5ddb298daaf6dc504032ff7eb027fa106 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e < 6a1504dd36cd9a0a69250d61da8bdb17b29f1fe8 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e < e89f3edffb860a0f54a9ed16deadb7a4a1fa3862
Linux / Linux
6.0