Description
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]/
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| kernel | 6.1.0 | 6.1.2 |
| unknown | — | — |
References
Similar Threats
- Unknown ALSA-2023:2458
- Unknown ALSA-2023:1703
- Unknown ALSA-2023:1566
- Unknown ALSA-2023:1470
- Unknown ALSA-2023:0951
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