{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45887", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.082Z", "datePublished": "2026-05-27T12:16:58.720Z", "dateUpdated": "2026-05-27T12:16:58.720Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:16:58.720Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Fix memleak of newsk in unix_stream_connect().\n\nWhen prepare_peercred() fails in unix_stream_connect(),\nunix_release_sock() is not called for newsk, and the memory\nis leaked.\n\nLet's move prepare_peercred() before unix_create1()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/unix/af_unix.c"], "versions": [{"version": "fd0a109a0f6b7524543d17520da92a44a9f5343c", "lessThan": "365996a2b14d07caa9e33d367b67ea26c09d89b4", "status": "affected", "versionType": "git"}, {"version": "fd0a109a0f6b7524543d17520da92a44a9f5343c", "lessThan": "a5d95d7caba0160fb7b2b8d2bd96d5a1be861d9f", "status": "affected", "versionType": "git"}, {"version": "fd0a109a0f6b7524543d17520da92a44a9f5343c", "lessThan": "6884028cd7f275f8bcb854a347265cb1fb0e4bea", "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/unix/af_unix.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.16", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/365996a2b14d07caa9e33d367b67ea26c09d89b4"}, {"url": "https://git.kernel.org/stable/c/a5d95d7caba0160fb7b2b8d2bd96d5a1be861d9f"}, {"url": "https://git.kernel.org/stable/c/6884028cd7f275f8bcb854a347265cb1fb0e4bea"}], "title": "af_unix: Fix memleak of newsk in unix_stream_connect().", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/unix/af_unix.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "365996a2b14d07caa9e33d367b67ea26c09d89b4", "status": "affected", "version": "fd0a109a0f6b7524543d17520da92a44a9f5343c", "versionType": "git"}, {"lessThan": "a5d95d7caba0160fb7b2b8d2bd96d5a1be861d9f", "status": "affected", "version": "fd0a109a0f6b7524543d17520da92a44a9f5343c", "versionType": "git"}, {"lessThan": "6884028cd7f275f8bcb854a347265cb1fb0e4bea", "status": "affected", "version": "fd0a109a0f6b7524543d17520da92a44a9f5343c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/unix/af_unix.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"lessThan": "6.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.14", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "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\naf_unix: Fix memleak of newsk in unix_stream_connect().\n\nWhen prepare_peercred() fails in unix_stream_connect(),\nunix_release_sock() is not called for newsk, and the memory\nis leaked.\n\nLet's move prepare_peercred() before unix_create1()."}], "id": "CVE-2026-45887", "lastModified": "2026-06-17T10:52:40.510", "metrics": {}, "published": "2026-05-27T14:17:02.713", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/365996a2b14d07caa9e33d367b67ea26c09d89b4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6884028cd7f275f8bcb854a347265cb1fb0e4bea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a5d95d7caba0160fb7b2b8d2bd96d5a1be861d9f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: af_unix: Fix memleak of newsk in unix_stream_connect()", "id": "2482042", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482042"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's `af_unix` subsystem. This vulnerability, a memory leak, occurs in the `unix_stream_connect()` function when a specific internal operation fails to release allocated memory. Over time, this unreleased memory could accumulate, potentially leading to system instability or a Denial of Service (DoS) condition."], "name": "CVE-2026-45887", "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": "Out of support scope", "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": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-45887\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45887\nhttps://lore.kernel.org/linux-cve-announce/2026052716-CVE-2026-45887-8c83@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd0a109a0f6b7524543d17520da92a44a9f5343c,365996a2b14d07caa9e33d367b67ea26c09d89b4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd0a109a0f6b7524543d17520da92a44a9f5343c,a5d95d7caba0160fb7b2b8d2bd96d5a1be861d9f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd0a109a0f6b7524543d17520da92a44a9f5343c,6884028cd7f275f8bcb854a347265cb1fb0e4bea)"}}], "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": "6.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.14,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.4,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "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": "2026-05-27T16:15:05.688475+00:00", "updated": "2026-05-28T17:15:21.846403+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}