CVE-2026-52979

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52979", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.376Z", "datePublished": "2026-06-24T16:28:55.696Z", "dateUpdated": "2026-06-24T16:28:55.696Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-24T16:28:55.696Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: psp: check for device unregister when creating assoc\n\npsp_assoc_device_get_locked() obtains a psp_dev reference via\npsp_dev_get_for_sock() (which uses psp_dev_tryget() under RCU);\nit then acquires psd->lock and drops the reference. Before\nthe lock is taken, psp_dev_unregister() can run to completion:\ntake psd->lock, clear out state, unlock, drop the registration\nreference.\n\nThe expectation is that the lock prevents device unregistration,\nbut much like with netdevs special care has to be taken when\n\"upgrading\" a reference to a locked device. Add the missing\ncheck if device is still alive. psp_dev_is_registered() exists\nalready but had no callers, which makes me wonder if I either\nforgot to add this or lost the check during refactoring..."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/psp/psp_nl.c"], "versions": [{"version": "6b46ca260e2290e3453d1355ab5b6d283d73d780", "lessThan": "d90df5ce6deb2424de3ad89bcc693ac1b67accc9", "status": "affected", "versionType": "git"}, {"version": "6b46ca260e2290e3453d1355ab5b6d283d73d780", "lessThan": "e201c57073e624dd2ba5beaf9eda31e19b77b332", "status": "affected", "versionType": "git"}, {"version": "6b46ca260e2290e3453d1355ab5b6d283d73d780", "lessThan": "b89769f936a8fa9e66de72ddc1b71a9745a488e6", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/psp/psp_nl.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d90df5ce6deb2424de3ad89bcc693ac1b67accc9"}, {"url": "https://git.kernel.org/stable/c/e201c57073e624dd2ba5beaf9eda31e19b77b332"}, {"url": "https://git.kernel.org/stable/c/b89769f936a8fa9e66de72ddc1b71a9745a488e6"}], "title": "net: psp: check for device unregister when creating assoc", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/psp/psp_nl.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d90df5ce6deb2424de3ad89bcc693ac1b67accc9", "status": "affected", "version": "6b46ca260e2290e3453d1355ab5b6d283d73d780", "versionType": "git"}, {"lessThan": "e201c57073e624dd2ba5beaf9eda31e19b77b332", "status": "affected", "version": "6b46ca260e2290e3453d1355ab5b6d283d73d780", "versionType": "git"}, {"lessThan": "b89769f936a8fa9e66de72ddc1b71a9745a488e6", "status": "affected", "version": "6b46ca260e2290e3453d1355ab5b6d283d73d780", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/psp/psp_nl.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.18"}, {"lessThan": "6.18", "status": "unaffected", "version": "0", "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"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2D1C0C76-C064-42A8-8213-A31A5DAE85EA", "versionEndExcluding": "6.18.33", "versionStartIncluding": "6.18", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A13475D2-59BF-4716-94B5-7C1D239A2CF4", "versionEndExcluding": "7.0.10", "versionStartIncluding": "6.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: psp: check for device unregister when creating assoc\n\npsp_assoc_device_get_locked() obtains a psp_dev reference via\npsp_dev_get_for_sock() (which uses psp_dev_tryget() under RCU);\nit then acquires psd->lock and drops the reference. Before\nthe lock is taken, psp_dev_unregister() can run to completion:\ntake psd->lock, clear out state, unlock, drop the registration\nreference.\n\nThe expectation is that the lock prevents device unregistration,\nbut much like with netdevs special care has to be taken when\n\"upgrading\" a reference to a locked device. Add the missing\ncheck if device is still alive. psp_dev_is_registered() exists\nalready but had no callers, which makes me wonder if I either\nforgot to add this or lost the check during refactoring..."}], "id": "CVE-2026-52979", "lastModified": "2026-07-14T16:51:33.750", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-06-24T17:17:08.513", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b89769f936a8fa9e66de72ddc1b71a9745a488e6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d90df5ce6deb2424de3ad89bcc693ac1b67accc9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e201c57073e624dd2ba5beaf9eda31e19b77b332"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: psp: check for device unregister when creating assoc", "id": "2492344", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492344"}, "csaw": false, "cwe": "CWE-367", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: psp: check for device unregister when creating assoc\npsp_assoc_device_get_locked() obtains a psp_dev reference via\npsp_dev_get_for_sock() (which uses psp_dev_tryget() under RCU);\nit then acquires psd->lock and drops the reference. Before\nthe lock is taken, psp_dev_unregister() can run to completion:\ntake psd->lock, clear out state, unlock, drop the registration\nreference.\nThe expectation is that the lock prevents device unregistration,\nbut much like with netdevs special care has to be taken when\n\"upgrading\" a reference to a locked device. Add the missing\ncheck if device is still alive. psp_dev_is_registered() exists\nalready but had no callers, which makes me wonder if I either\nforgot to add this or lost the check during refactoring...", "A flaw was found in the Linux kernel's Platform Security Processor (PSP) network driver. This vulnerability occurs when creating a device association, where the system fails to properly check if the device has been unregistered. A race condition exists where the device can be unregistered before a lock is acquired, leading to an invalid state. This could potentially result in system instability or a denial of service."], "name": "CVE-2026-52979", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-52979\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-52979\nhttps://lore.kernel.org/linux-cve-announce/2026062441-CVE-2026-52979-3fee@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6b46ca260e2290e3453d1355ab5b6d283d73d780,d90df5ce6deb2424de3ad89bcc693ac1b67accc9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6b46ca260e2290e3453d1355ab5b6d283d73d780,e201c57073e624dd2ba5beaf9eda31e19b77b332)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6b46ca260e2290e3453d1355ab5b6d283d73d780,b89769f936a8fa9e66de72ddc1b71a9745a488e6)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.33,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-24T19:45:05.750038+00:00", "updated": "2026-08-12T06:00:11.047454+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}