Vulnerability-Lookup

FKIE_CVE-2022-49862

Vulnerability from fkie_nvd - Published: 2025-05-01 15:16 - Updated: 2026-06-17 05:19

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header This is a follow-up for commit 974cb0e3e7c9 ("tipc: fix uninit-value in tipc_nl_compat_name_table_dump") where it should have type casted sizeof(..) to int to work when TLV_GET_DATA_LEN() returns a negative value. syzbot reported a call trace because of it: BUG: KMSAN: uninit-value in ... tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934 __tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238 tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321 tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792 netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501 genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline]

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/082707d3df191bf5bb8801d43e4ce3dea39ca173	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1c075b192fe41030457cd4a5f7dea730412bca40	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/301caa06091af4d5cf056ac8249cbda4e6029c6a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/36769b9477491a7af6635863bd950309c1e1b96c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/55a253a6753a603e80b95932ca971ba514aa6ce7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6cee2c60bd168279852ac7dbe54c2b70d1028644	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a0ead1d648df9c456baec832b494513ef405949a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f31dd158580940938f77514b87337a777520185a	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.1
linux	linux_kernel	6.1
linux	linux_kernel	6.1
linux	linux_kernel	6.1

JSON

To clipboard

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix the msg-\u003ereq tlv len check in tipc_nl_compat_name_table_dump_header\n\nThis is a follow-up for commit 974cb0e3e7c9 (\"tipc: fix uninit-value\nin tipc_nl_compat_name_table_dump\") where it should have type casted\nsizeof(..) to int to work when TLV_GET_DATA_LEN() returns a negative\nvalue.\n\nsyzbot reported a call trace because of it:\n\n  BUG: KMSAN: uninit-value in ...\n   tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934\n   __tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238\n   tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321\n   tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324\n   genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]\n   genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]\n   genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792\n   netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501\n   genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803\n   netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]\n   netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345\n   netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921\n   sock_sendmsg_nosec net/socket.c:714 [inline]\n   sock_sendmsg net/socket.c:734 [inline]"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tipc: corrige la comprobaci\u00f3n de longitud del tlv msg-\u0026gt;req en tipc_nl_compat_name_table_dump_header Este es un seguimiento del commit 974cb0e3e7c9 (\"tipc: corrige uninit-value en tipc_nl_compat_name_table_dump\") donde deber\u00eda haber convertido el tipo sizeof(..) a int para que funcione cuando TLV_GET_DATA_LEN() devuelve un valor negativo. syzbot inform\u00f3 un seguimiento de llamadas debido a esto: ERROR: KMSAN: valor no inicializado en ... tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934 __tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238 tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321 tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792 netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501 genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] "
    }
  ],
  "id": "CVE-2022-49862",
  "lastModified": "2026-06-17T05:19:20.133",
  "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"
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          "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
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    "ssvcV203": [
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        "ssvcData": {
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          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-01T16:11:41.836355Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-05-01T15:16:11.097",
  "references": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
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        {
          "lang": "en",
          "value": "CWE-908"
        }
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      "source": "nvd@nist.gov",
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  ]
}

CVE-2022-49862 (GCVE-0-2022-49862)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:10 – Updated: 2026-05-23 15:23

Title

tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header

Summary

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 16:11 UTC

CWE

CWE-908 - Use of Uninitialized Resource

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7033 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/082707d3df191bf5b…
https://git.kernel.org/stable/c/a0ead1d648df9c456…
https://git.kernel.org/stable/c/55a253a6753a603e8…
https://git.kernel.org/stable/c/36769b9477491a7af…
https://git.kernel.org/stable/c/f31dd158580940938…
https://git.kernel.org/stable/c/301caa06091af4d5c…
https://git.kernel.org/stable/c/6cee2c60bd1682798…
https://git.kernel.org/stable/c/1c075b192fe410304…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4c559fb7e111077b56f62ccf833a52d8169cde19 , < 082707d3df191bf5bb8801d43e4ce3dea39ca173 (git) Affected: 2aae1723dea1235ffef183daf0694805297424f6 , < a0ead1d648df9c456baec832b494513ef405949a (git) Affected: 2d5fc1d492d194aa2986c5a9d8a48a60e9143a72 , < 55a253a6753a603e80b95932ca971ba514aa6ce7 (git) Affected: 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 , < 36769b9477491a7af6635863bd950309c1e1b96c (git) Affected: 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 , < f31dd158580940938f77514b87337a777520185a (git) Affected: 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 , < 301caa06091af4d5cf056ac8249cbda4e6029c6a (git) Affected: 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 , < 6cee2c60bd168279852ac7dbe54c2b70d1028644 (git) Affected: 974cb0e3e7c963ced06c4e32c5b2884173fa5e01 , < 1c075b192fe41030457cd4a5f7dea730412bca40 (git) Affected: c25352f9ad5dffb4de95069e67891e2aa2e99e50 (git) Affected: 5486e8d46560ca2b4d86cbd7d3a66d9913b2ac65 (git) Affected: 4.9.152 , < 4.9.334 (semver) Affected: 4.14.95 , < 4.14.300 (semver) Affected: 4.19.17 , < 4.19.267 (semver) Affected: 4.4.172 , < 4.5 (semver) Affected: 4.20.4 , < 4.21 (semver)
Linux	Linux	Affected: 5.0 Unaffected: 0 , < 5.0 (semver) Unaffected: 4.9.334 , ≤ 4.9.* (semver) Unaffected: 4.14.300 , ≤ 4.14.* (semver) Unaffected: 4.19.267 , ≤ 4.19.* (semver) Unaffected: 5.4.225 , ≤ 5.4.* (semver) Unaffected: 5.10.155 , ≤ 5.10.* (semver) Unaffected: 5.15.79 , ≤ 5.15.* (semver) Unaffected: 6.0.9 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix)

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{
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        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-49862",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T16:11:41.836355Z",
                "version": "2.0.3"
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        "problemTypes": [
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                "description": "CWE-908 Use of Uninitialized Resource",
                "lang": "en",
                "type": "CWE"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
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            },
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              "status": "affected",
              "version": "4.20.4",
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        },
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              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.225",
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            },
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              "status": "unaffected",
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              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                  "versionEndExcluding": "4.9.334",
                  "versionStartIncluding": "4.9.152",
                  "vulnerable": true
                },
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        {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix the msg-\u003ereq tlv len check in tipc_nl_compat_name_table_dump_header\n\nThis is a follow-up for commit 974cb0e3e7c9 (\"tipc: fix uninit-value\nin tipc_nl_compat_name_table_dump\") where it should have type casted\nsizeof(..) to int to work when TLV_GET_DATA_LEN() returns a negative\nvalue.\n\nsyzbot reported a call trace because of it:\n\n  BUG: KMSAN: uninit-value in ...\n   tipc_nl_compat_name_table_dump+0x841/0xea0 net/tipc/netlink_compat.c:934\n   __tipc_nl_compat_dumpit+0xab2/0x1320 net/tipc/netlink_compat.c:238\n   tipc_nl_compat_dumpit+0x991/0xb50 net/tipc/netlink_compat.c:321\n   tipc_nl_compat_recv+0xb6e/0x1640 net/tipc/netlink_compat.c:1324\n   genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]\n   genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]\n   genl_rcv_msg+0x103f/0x1260 net/netlink/genetlink.c:792\n   netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501\n   genl_rcv+0x3c/0x50 net/netlink/genetlink.c:803\n   netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]\n   netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345\n   netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921\n   sock_sendmsg_nosec net/socket.c:714 [inline]\n   sock_sendmsg net/socket.c:734 [inline]"
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        "dateUpdated": "2026-05-23T15:23:02.760Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          "url": "https://git.kernel.org/stable/c/082707d3df191bf5bb8801d43e4ce3dea39ca173"
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          "url": "https://git.kernel.org/stable/c/a0ead1d648df9c456baec832b494513ef405949a"
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          "url": "https://git.kernel.org/stable/c/55a253a6753a603e80b95932ca971ba514aa6ce7"
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        {
          "url": "https://git.kernel.org/stable/c/36769b9477491a7af6635863bd950309c1e1b96c"
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        },
        {
          "url": "https://git.kernel.org/stable/c/1c075b192fe41030457cd4a5f7dea730412bca40"
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      ],
      "title": "tipc: fix the msg-\u003ereq tlv len check in tipc_nl_compat_name_table_dump_header",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49862",
    "datePublished": "2025-05-01T14:10:15.742Z",
    "dateReserved": "2025-05-01T14:05:17.236Z",
    "dateUpdated": "2026-05-23T15:23:02.760Z",
    "state": "PUBLISHED"
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}

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.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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