CVE-2026-22991 (GCVE-0-2026-22991)

Vulnerability from cvelistv5 – Published: 2026-01-23 15:24 – Updated: 2026-06-16 20:35
VLAI
Title
libceph: make free_choose_arg_map() resilient to partial allocation
Summary
In the Linux kernel, the following vulnerability has been resolved: libceph: make free_choose_arg_map() resilient to partial allocation free_choose_arg_map() may dereference a NULL pointer if its caller fails after a partial allocation. For example, in decode_choose_args(), if allocation of arg_map->args fails, execution jumps to the fail label and free_choose_arg_map() is called. Since arg_map->size is updated to a non-zero value before memory allocation, free_choose_arg_map() will iterate over arg_map->args and dereference a NULL pointer. To prevent this potential NULL pointer dereference and make free_choose_arg_map() more resilient, add checks for pointers before iterating.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5cf9c4a9959b6273675310d14a834ef14fbca37c , < 9b3730dabcf3764bfe3ff07caf55e641a0b45234 (git)
Affected: 5cf9c4a9959b6273675310d14a834ef14fbca37c , < 851241d3f78a5505224dc21c03d8692f530256b4 (git)
Affected: 5cf9c4a9959b6273675310d14a834ef14fbca37c , < ec1850f663da64842614c86b20fe734be070c2ba (git)
Affected: 5cf9c4a9959b6273675310d14a834ef14fbca37c , < 8081faaf089db5280c3be820948469f7c58ef8dd (git)
Affected: 5cf9c4a9959b6273675310d14a834ef14fbca37c , < c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf (git)
Affected: 5cf9c4a9959b6273675310d14a834ef14fbca37c , < f21c3fdb96833aac2f533506899fe38c19cf49d5 (git)
Affected: 5cf9c4a9959b6273675310d14a834ef14fbca37c , < e3fe30e57649c551757a02e1cad073c47e1e075e (git)
Create a notification for this product.
Linux Linux Affected: 4.13
Unaffected: 0 , < 4.13 (semver)
Unaffected: 5.10.248 , ≤ 5.10.* (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
Unaffected: 6.1.161 , ≤ 6.1.* (semver)
Unaffected: 6.6.121 , ≤ 6.6.* (semver)
Unaffected: 6.12.66 , ≤ 6.12.* (semver)
Unaffected: 6.18.6 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-22991",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-16T20:35:31.087945Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-16T20:35:39.173Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ceph/osdmap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9b3730dabcf3764bfe3ff07caf55e641a0b45234",
              "status": "affected",
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "versionType": "git"
            },
            {
              "lessThan": "851241d3f78a5505224dc21c03d8692f530256b4",
              "status": "affected",
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "versionType": "git"
            },
            {
              "lessThan": "ec1850f663da64842614c86b20fe734be070c2ba",
              "status": "affected",
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "versionType": "git"
            },
            {
              "lessThan": "8081faaf089db5280c3be820948469f7c58ef8dd",
              "status": "affected",
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "versionType": "git"
            },
            {
              "lessThan": "c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf",
              "status": "affected",
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "versionType": "git"
            },
            {
              "lessThan": "f21c3fdb96833aac2f533506899fe38c19cf49d5",
              "status": "affected",
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "versionType": "git"
            },
            {
              "lessThan": "e3fe30e57649c551757a02e1cad073c47e1e075e",
              "status": "affected",
              "version": "5cf9c4a9959b6273675310d14a834ef14fbca37c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ceph/osdmap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.13"
            },
            {
              "lessThan": "4.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.248",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.198",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.161",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.66",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.248",
                  "versionStartIncluding": "4.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.198",
                  "versionStartIncluding": "4.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.161",
                  "versionStartIncluding": "4.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.121",
                  "versionStartIncluding": "4.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.66",
                  "versionStartIncluding": "4.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.6",
                  "versionStartIncluding": "4.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "4.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: make free_choose_arg_map() resilient to partial allocation\n\nfree_choose_arg_map() may dereference a NULL pointer if its caller fails\nafter a partial allocation.\n\nFor example, in decode_choose_args(), if allocation of arg_map-\u003eargs\nfails, execution jumps to the fail label and free_choose_arg_map() is\ncalled. Since arg_map-\u003esize is updated to a non-zero value before memory\nallocation, free_choose_arg_map() will iterate over arg_map-\u003eargs and\ndereference a NULL pointer.\n\nTo prevent this potential NULL pointer dereference and make\nfree_choose_arg_map() more resilient, add checks for pointers before\niterating."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:57:53.477Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9b3730dabcf3764bfe3ff07caf55e641a0b45234"
        },
        {
          "url": "https://git.kernel.org/stable/c/851241d3f78a5505224dc21c03d8692f530256b4"
        },
        {
          "url": "https://git.kernel.org/stable/c/ec1850f663da64842614c86b20fe734be070c2ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/8081faaf089db5280c3be820948469f7c58ef8dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf"
        },
        {
          "url": "https://git.kernel.org/stable/c/f21c3fdb96833aac2f533506899fe38c19cf49d5"
        },
        {
          "url": "https://git.kernel.org/stable/c/e3fe30e57649c551757a02e1cad073c47e1e075e"
        }
      ],
      "title": "libceph: make free_choose_arg_map() resilient to partial allocation",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-22991",
    "datePublished": "2026-01-23T15:24:12.191Z",
    "dateReserved": "2026-01-13T15:37:45.937Z",
    "dateUpdated": "2026-06-16T20:35:39.173Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-22991",
      "date": "2026-06-16",
      "epss": "0.00395",
      "percentile": "0.31141"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-22991\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-01-23T16:15:55.183\",\"lastModified\":\"2026-04-27T14:16:28.150\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nlibceph: make free_choose_arg_map() resilient to partial allocation\\n\\nfree_choose_arg_map() may dereference a NULL pointer if its caller fails\\nafter a partial allocation.\\n\\nFor example, in decode_choose_args(), if allocation of arg_map-\u003eargs\\nfails, execution jumps to the fail label and free_choose_arg_map() is\\ncalled. Since arg_map-\u003esize is updated to a non-zero value before memory\\nallocation, free_choose_arg_map() will iterate over arg_map-\u003eargs and\\ndereference a NULL pointer.\\n\\nTo prevent this potential NULL pointer dereference and make\\nfree_choose_arg_map() more resilient, add checks for pointers before\\niterating.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\\n\\nlibceph: hacer free_choose_arg_map() resistente a la asignaci\u00f3n parcial\\n\\nfree_choose_arg_map() puede desreferenciar un puntero NULL si su llamador falla despu\u00e9s de una asignaci\u00f3n parcial.\\n\\nPor ejemplo, en decode_choose_args(), si la asignaci\u00f3n de arg_map-\u0026gt;args falla, la ejecuci\u00f3n salta a la etiqueta fail y se llama a free_choose_arg_map(). Dado que arg_map-\u0026gt;size se actualiza a un valor distinto de cero antes de la asignaci\u00f3n de memoria, free_choose_arg_map() iterar\u00e1 sobre arg_map-\u0026gt;args y desreferenciar\u00e1 un puntero NULL.\\n\\nPara evitar esta potencial desreferencia de puntero NULL y hacer free_choose_arg_map() m\u00e1s resistente, a\u00f1adir comprobaciones para los punteros antes de iterar.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.13\",\"versionEndExcluding\":\"5.10.248\",\"matchCriteriaId\":\"14DEF845-E647-4A78-9311-A8F1A59E3A66\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.198\",\"matchCriteriaId\":\"82159CAA-B6BA-43C6-85D8-65BDBC175A7E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.161\",\"matchCriteriaId\":\"E135B7E2-61FC-4DC1-8570-ABD67894FFDE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.121\",\"matchCriteriaId\":\"BB7A164B-7422-4A1C-82FB-5FCAEE53C06C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.66\",\"matchCriteriaId\":\"F72B884C-B44F-40E4-9895-CE421AC663D0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.6\",\"matchCriteriaId\":\"879529BC-5B4C-4EBE-BF1D-1A31404A8B2E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"17B67AA7-40D6-4AFA-8459-F200F3D7CFD1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"C47E4CC9-C826-4FA9-B014-7FE3D9B318B2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F71D92C0-C023-48BD-B3B6-70B638EEE298\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"13580667-0A98-40CC-B29F-D12790B91BDB\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/8081faaf089db5280c3be820948469f7c58ef8dd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/851241d3f78a5505224dc21c03d8692f530256b4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9b3730dabcf3764bfe3ff07caf55e641a0b45234\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e3fe30e57649c551757a02e1cad073c47e1e075e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ec1850f663da64842614c86b20fe734be070c2ba\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f21c3fdb96833aac2f533506899fe38c19cf49d5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-22991\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-16T20:35:31.087945Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-16T20:35:35.860Z\"}}], \"cna\": {\"title\": \"libceph: make free_choose_arg_map() resilient to partial allocation\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\"}}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5cf9c4a9959b6273675310d14a834ef14fbca37c\", \"lessThan\": \"9b3730dabcf3764bfe3ff07caf55e641a0b45234\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5cf9c4a9959b6273675310d14a834ef14fbca37c\", \"lessThan\": \"851241d3f78a5505224dc21c03d8692f530256b4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5cf9c4a9959b6273675310d14a834ef14fbca37c\", \"lessThan\": \"ec1850f663da64842614c86b20fe734be070c2ba\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5cf9c4a9959b6273675310d14a834ef14fbca37c\", \"lessThan\": \"8081faaf089db5280c3be820948469f7c58ef8dd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5cf9c4a9959b6273675310d14a834ef14fbca37c\", \"lessThan\": \"c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5cf9c4a9959b6273675310d14a834ef14fbca37c\", \"lessThan\": \"f21c3fdb96833aac2f533506899fe38c19cf49d5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5cf9c4a9959b6273675310d14a834ef14fbca37c\", \"lessThan\": \"e3fe30e57649c551757a02e1cad073c47e1e075e\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ceph/osdmap.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.13\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.13\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.248\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.198\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.161\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.121\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.66\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.18.*\"}, {\"status\": \"unaffected\", \"version\": \"6.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ceph/osdmap.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/9b3730dabcf3764bfe3ff07caf55e641a0b45234\"}, {\"url\": \"https://git.kernel.org/stable/c/851241d3f78a5505224dc21c03d8692f530256b4\"}, {\"url\": \"https://git.kernel.org/stable/c/ec1850f663da64842614c86b20fe734be070c2ba\"}, {\"url\": \"https://git.kernel.org/stable/c/8081faaf089db5280c3be820948469f7c58ef8dd\"}, {\"url\": \"https://git.kernel.org/stable/c/c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf\"}, {\"url\": \"https://git.kernel.org/stable/c/f21c3fdb96833aac2f533506899fe38c19cf49d5\"}, {\"url\": \"https://git.kernel.org/stable/c/e3fe30e57649c551757a02e1cad073c47e1e075e\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nlibceph: make free_choose_arg_map() resilient to partial allocation\\n\\nfree_choose_arg_map() may dereference a NULL pointer if its caller fails\\nafter a partial allocation.\\n\\nFor example, in decode_choose_args(), if allocation of arg_map-\u003eargs\\nfails, execution jumps to the fail label and free_choose_arg_map() is\\ncalled. Since arg_map-\u003esize is updated to a non-zero value before memory\\nallocation, free_choose_arg_map() will iterate over arg_map-\u003eargs and\\ndereference a NULL pointer.\\n\\nTo prevent this potential NULL pointer dereference and make\\nfree_choose_arg_map() more resilient, add checks for pointers before\\niterating.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.248\", \"versionStartIncluding\": \"4.13\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.198\", \"versionStartIncluding\": \"4.13\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.161\", \"versionStartIncluding\": \"4.13\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.121\", \"versionStartIncluding\": \"4.13\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.66\", \"versionStartIncluding\": \"4.13\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18.6\", \"versionStartIncluding\": \"4.13\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.19\", \"versionStartIncluding\": \"4.13\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T21:57:53.477Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-22991\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-16T20:35:39.173Z\", \"dateReserved\": \"2026-01-13T15:37:45.937Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2026-01-23T15:24:12.191Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • 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.


Detection rules are retrieved from Rulezet.