{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52958", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.373Z", "datePublished": "2026-06-24T16:28:39.723Z", "dateUpdated": "2026-06-28T06:37:19.643Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-28T06:37:19.643Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: Fix potential out-of-bounds access in osdmap_decode()\n\nWhen decoding osd_state and osd_weight from an incoming osdmap in\nosdmap_decode(), both are decoded for each osd, i.e., map->max_osd\ntimes. The ceph_decode_need() check only accounts for\nsizeof(*map->osd_weight) once. This can potentially result in an\nout-of-bounds memory access if the incoming message is corrupted such\nthat the max_osd value exceeds the actual content of the osdmap message.\n\nThis patch fixes the issue by changing the corresponding part in the\nceph_decode_need() check to account for\nmap->max_osd*sizeof(*map->osd_weight)."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "baseScore": 9.1, "baseSeverity": "CRITICAL"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ceph/osdmap.c"], "versions": [{"version": "dcbc919a5dc8c2629684a113a90c0b6fe10c3462", "lessThan": "36a79759a288961b1ff28a68ec2d1f56f6848098", "status": "affected", "versionType": "git"}, {"version": "dcbc919a5dc8c2629684a113a90c0b6fe10c3462", "lessThan": "3f2575bb7f955d42569d96c3e04fa958a0dcf4b4", "status": "affected", "versionType": "git"}, {"version": "dcbc919a5dc8c2629684a113a90c0b6fe10c3462", "lessThan": "8713bbc4b2b9ad78f803978e54b7e49dd21bd9be", "status": "affected", "versionType": "git"}, {"version": "dcbc919a5dc8c2629684a113a90c0b6fe10c3462", "lessThan": "0d2dd7e6bb74fd7712aa73457a4a821906c6863a", "status": "affected", "versionType": "git"}, {"version": "dcbc919a5dc8c2629684a113a90c0b6fe10c3462", "lessThan": "e7187f33c02488697ec0d01d82bf7a3f8deaba8f", "status": "affected", "versionType": "git"}, {"version": "dcbc919a5dc8c2629684a113a90c0b6fe10c3462", "lessThan": "48df98d12b15360cd56af5c1f460307b340c1197", "status": "affected", "versionType": "git"}, {"version": "dcbc919a5dc8c2629684a113a90c0b6fe10c3462", "lessThan": "ee933694645dac062d65fc2743f92bc06fa0db6b", "status": "affected", "versionType": "git"}, {"version": "dcbc919a5dc8c2629684a113a90c0b6fe10c3462", "lessThan": "35d0ed82d03e5ee77ea4f31f20e29562a7721649", "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/ceph/osdmap.c"], "versions": [{"version": "5.3", "status": "affected"}, {"version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.258", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.91", "lessThanOrEqual": "6.12.*", "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": "5.3", "versionEndExcluding": "5.10.258"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.6.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": 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"https://git.kernel.org/stable/c/ee933694645dac062d65fc2743f92bc06fa0db6b"}, {"url": "https://git.kernel.org/stable/c/35d0ed82d03e5ee77ea4f31f20e29562a7721649"}], "title": "libceph: Fix potential out-of-bounds access in osdmap_decode()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: libceph: Fix potential out-of-bounds access in osdmap_decode()", "id": "2492463", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492463"}, "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-1284", "details": ["A flaw was found in the Linux kernel's `libceph` component. This vulnerability, located within the `osdmap_decode()` function, can lead to an out-of-bounds memory access. A remote attacker could exploit this by sending a specially crafted and corrupted `osdmap` message, where the `max_osd` value exceeds the actual message content. This could potentially result in system instability or other unforeseen impacts due to memory corruption."], "name": "CVE-2026-52958", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "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-2026-52958\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-52958\nhttps://lore.kernel.org/linux-cve-announce/2026062436-CVE-2026-52958-a72e@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dcbc919a5dc8c2629684a113a90c0b6fe10c3462,36a79759a288961b1ff28a68ec2d1f56f6848098)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dcbc919a5dc8c2629684a113a90c0b6fe10c3462,3f2575bb7f955d42569d96c3e04fa958a0dcf4b4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dcbc919a5dc8c2629684a113a90c0b6fe10c3462,8713bbc4b2b9ad78f803978e54b7e49dd21bd9be)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dcbc919a5dc8c2629684a113a90c0b6fe10c3462,0d2dd7e6bb74fd7712aa73457a4a821906c6863a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dcbc919a5dc8c2629684a113a90c0b6fe10c3462,e7187f33c02488697ec0d01d82bf7a3f8deaba8f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dcbc919a5dc8c2629684a113a90c0b6fe10c3462,48df98d12b15360cd56af5c1f460307b340c1197)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dcbc919a5dc8c2629684a113a90c0b6fe10c3462,ee933694645dac062d65fc2743f92bc06fa0db6b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[dcbc919a5dc8c2629684a113a90c0b6fe10c3462,35d0ed82d03e5ee77ea4f31f20e29562a7721649)"}}], "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": "5.3"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.3)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.258,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.209,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.175,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.141,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.91,6.13.0)"}}, {"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": "[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": "2026-06-24T18:30:06.421270+00:00", "updated": "2026-06-28T13:45:06.284637+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}