CVE-2022-49183 - CVE House
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Status published Unknown CVE-2022-49183

net/sched: act_ct: fix ref leak when switching zones

Vulnerability 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().

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
0fc1847359964e95e521cf2bb2b10f8e33dd0970, a95ea90deb3071c1ded77a05e91cfebc5238d908, e9408de00e5ecd0dbe91cf061c7da23711c4febb, 2f131de361f6d0eaff17db26efdb844c178432f8, 5.10.103, 5.15.26, 5.16.12, 5.17, 0, 5.10.258, 5.15.33, 5.16.19, 5.17.2, 5.18

Timeline

Official Publish: February 26th, 2025
Last Modified: June 1st, 2026
Added to House: July 21st, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.