Unrated severityNVD Advisory· Published Jun 24, 2026
netfilter: nft_ct: fix missing expect put in obj eval
CVE-2026-52970
Description
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.
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Affected products
1Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/19f94b6fee75b3ef7fbc06f3745b9a771a8a19a4mitre
- git.kernel.org/stable/c/1dced0725e2fae3ac3416274db20a7ff5a46931dmitre
- git.kernel.org/stable/c/26ab32ec73941871c97562ee1f39587950dc3b68mitre
- git.kernel.org/stable/c/2aef1b13d5c0285f340512c6c07eb858fd018fd8mitre
- git.kernel.org/stable/c/7b96242ceedfe249f158419f3254bcee04173ffemitre
- git.kernel.org/stable/c/84c422cea5a45fe56be839f25880f21fd33940cdmitre
- git.kernel.org/stable/c/cdb9a25dd3416d427e8b2753210f8baf44207577mitre
- git.kernel.org/stable/c/ecca618e1e339494911090474ed87742c0f73976mitre
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