Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 0fc1847359964e95e521cf2bb2b10f8e33dd0970 before 9222a08be539cbb7a8e0d46cbc7ab9e4db273eb8; affected a95ea90deb3071c1ded77a05e91cfebc5238d908 before bcbf4e5c3b5b373cd61528392dd1ec8e9c0fd33d; affected e9408de00e5ecd0dbe91cf061c7da23711c4febb before 4bb42d73def9411e5cad885b9811987d72431df1; affected 2f131de361f6d0eaff17db26efdb844c178432f8 before b24793a37d91aacad7cb9893b226a7924a89636a; affected 2f131de361f6d0eaff17db26efdb844c178432f8 before bcb74e132a76ce0502bb33d5b65533a4ed72d159; affected 5.10.103 before 5.10.258; affected 5.15.26 before 5.15.33; affected 5.16.12 before 5.16.19 |
| Linux / Linux | affected 5.17; unaffected 0 before 5.17; unaffected 5.10.258 through 5.10.*; unaffected 5.15.33 through 5.15.*; unaffected 5.16.19 through 5.16.*; unaffected 5.17.2 through 5.17.*; unaffected 5.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/9222a08be539cbb7a8e0d46cbc7ab9e4db273eb8
- https://git.kernel.org/stable/c/bcbf4e5c3b5b373cd61528392dd1ec8e9c0fd33d
- https://git.kernel.org/stable/c/4bb42d73def9411e5cad885b9811987d72431df1
- https://git.kernel.org/stable/c/b24793a37d91aacad7cb9893b226a7924a89636a
- https://git.kernel.org/stable/c/bcb74e132a76ce0502bb33d5b65533a4ed72d159
ADP enrichment
No English description supplied.
No references supplied.