{"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"}}}}

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