FKIE_CVE-2026-52970
Vulnerability from fkie_nvd - Published: 2026-06-24 17:17 - Updated: 2026-06-24 17:17
Severity
Summary
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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netfilter/nft_ct.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "cdb9a25dd3416d427e8b2753210f8baf44207577",
"status": "affected",
"version": "857b46027d6f91150797295752581b7155b9d0e1",
"versionType": "git"
},
{
"lessThan": "26ab32ec73941871c97562ee1f39587950dc3b68",
"status": "affected",
"version": "857b46027d6f91150797295752581b7155b9d0e1",
"versionType": "git"
},
{
"lessThan": "7b96242ceedfe249f158419f3254bcee04173ffe",
"status": "affected",
"version": "857b46027d6f91150797295752581b7155b9d0e1",
"versionType": "git"
},
{
"lessThan": "ecca618e1e339494911090474ed87742c0f73976",
"status": "affected",
"version": "857b46027d6f91150797295752581b7155b9d0e1",
"versionType": "git"
},
{
"lessThan": "2aef1b13d5c0285f340512c6c07eb858fd018fd8",
"status": "affected",
"version": "857b46027d6f91150797295752581b7155b9d0e1",
"versionType": "git"
},
{
"lessThan": "1dced0725e2fae3ac3416274db20a7ff5a46931d",
"status": "affected",
"version": "857b46027d6f91150797295752581b7155b9d0e1",
"versionType": "git"
},
{
"lessThan": "84c422cea5a45fe56be839f25880f21fd33940cd",
"status": "affected",
"version": "857b46027d6f91150797295752581b7155b9d0e1",
"versionType": "git"
},
{
"lessThan": "19f94b6fee75b3ef7fbc06f3745b9a771a8a19a4",
"status": "affected",
"version": "857b46027d6f91150797295752581b7155b9d0e1",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/netfilter/nft_ct.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.3"
},
{
"lessThan": "5.3",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.258",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.209",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.175",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.141",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.91",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.33",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"version": "7.0.10",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_ct: fix missing expect put in obj eval\n\nnft_ct_expect_obj_eval() allocates an expectation and may call\nnf_ct_expect_related(), but never drops its local reference.\n\nAdd nf_ct_expect_put(exp) before return to balance allocation."
}
],
"id": "CVE-2026-52970",
"lastModified": "2026-06-24T17:17:07.500",
"metrics": {},
"published": "2026-06-24T17:17:07.500",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/19f94b6fee75b3ef7fbc06f3745b9a771a8a19a4"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/1dced0725e2fae3ac3416274db20a7ff5a46931d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/26ab32ec73941871c97562ee1f39587950dc3b68"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2aef1b13d5c0285f340512c6c07eb858fd018fd8"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/7b96242ceedfe249f158419f3254bcee04173ffe"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/84c422cea5a45fe56be839f25880f21fd33940cd"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/cdb9a25dd3416d427e8b2753210f8baf44207577"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/ecca618e1e339494911090474ed87742c0f73976"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
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- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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