Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-06-24T00:00:00 kernel: netfilter: nft_ct: fix missing expect put in obj eval 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CWE-772

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_ct: fix missing expect put in obj eval nft_ct_expect_obj_eval() allocates an expectation and may call nf_ct_expect_related(), but never drops its local reference. Add nf_ct_expect_put(exp) before return to balance allocation.

A flaw was found in the `netfilter: nft_ct` component of the Linux kernel. The `nft_ct_expect_obj_eval()` function allocates an expectation but fails to release its local reference. This oversight leads to a resource leak, which could potentially allow a local attacker to cause a denial of service by exhausting system resources.

Red Hat Enterprise Linux 10 Affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Affected kernel Red Hat Enterprise Linux 9 Affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-52970 https://nvd.nist.gov/vuln/detail/CVE-2026-52970 https://lore.kernel.org/linux-cve-announce/2026062439-CVE-2026-52970-8bc3@gregkh/T