CVE-2022-49183

MediumCVSS 5.5/10Last modified Jun 17, 2026

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().

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

No affected versions have been published.

Timeline

Published
Feb 26, 2025
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2022-49183: Medium severity, CVSS 5.5 | Vulnix