CVE-2022-49183
5.5 MEDIUMIn the Linux kernel, the following vulnerability has been resolved: net/sched: act_ct: fix ref leak when switching zones When switching...
Published: 2025-02-26 · Last updated: 2026-06-01
Severity and scoring
- CVSS
- 5.5 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
Description
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ct: fix ref leak when switching zones When switching zones or network namespaces without doing a ct clear in between, it is now leaking a reference to the old ct entry. That's because tcf_ct_skb_nfct_cached() returns false and tcf_ct_flow_table_lookup() may simply overwrite it. The fix is to, as the ct entry is not reusable, free it already at tcf_ct_skb_nfct_cached().
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2022-49183
- [Patch]https://git.kernel.org/stable/c/4bb42d73def9411e5cad885b9811987d72431df1
- [Other]https://git.kernel.org/stable/c/9222a08be539cbb7a8e0d46cbc7ab9e4db273eb8
- [Patch]https://git.kernel.org/stable/c/b24793a37d91aacad7cb9893b226a7924a89636a
- [Patch]https://git.kernel.org/stable/c/bcb74e132a76ce0502bb33d5b65533a4ed72d159
- [Patch]https://git.kernel.org/stable/c/bcbf4e5c3b5b373cd61528392dd1ec8e9c0fd33d
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