CVE-2022-49183
net/sched: act_ct: fix ref leak when switching zones
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 26, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
a95ea90deb3071c1ded77a05e91cfebc5238d908 < bcbf4e5c3b5b373cd61528392dd1ec8e9c0fd33d e9408de00e5ecd0dbe91cf061c7da23711c4febb < 4bb42d73def9411e5cad885b9811987d72431df1 2f131de361f6d0eaff17db26efdb844c178432f8 < b24793a37d91aacad7cb9893b226a7924a89636a 2f131de361f6d0eaff17db26efdb844c178432f8 < bcb74e132a76ce0502bb33d5b65533a4ed72d159 0fc1847359964e95e521cf2bb2b10f8e33dd0970
Linux / Linux
5.17
References
git.kernel.org: https://git.kernel.org/stable/c/bcbf4e5c3b5b373cd61528392dd1ec8e9c0fd33d git.kernel.org: https://git.kernel.org/stable/c/4bb42d73def9411e5cad885b9811987d72431df1 git.kernel.org: https://git.kernel.org/stable/c/b24793a37d91aacad7cb9893b226a7924a89636a git.kernel.org: https://git.kernel.org/stable/c/bcb74e132a76ce0502bb33d5b65533a4ed72d159