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GHSA-9VX2-7QPG-XF7M

Vulnerability from github – Published: 2024-04-17 12:32 – Updated: 2026-04-18 09:30

Details

In the Linux kernel, the following vulnerability has been resolved:

netlink: add nla be16/32 types to minlen array

BUG: KMSAN: uninit-value in nla_validate_range_unsigned lib/nlattr.c:222 [inline] BUG: KMSAN: uninit-value in nla_validate_int_range lib/nlattr.c:336 [inline] BUG: KMSAN: uninit-value in validate_nla lib/nlattr.c:575 [inline] BUG: KMSAN: uninit-value in __nla_validate_parse+0x2e20/0x45c0 lib/nlattr.c:631 nla_validate_range_unsigned lib/nlattr.c:222 [inline] nla_validate_int_range lib/nlattr.c:336 [inline] validate_nla lib/nlattr.c:575 [inline] ...

The message in question matches this policy:

[NFTA_TARGET_REV] = NLA_POLICY_MAX(NLA_BE32, 255),

but because NLA_BE32 size in minlen array is 0, the validation code will read past the malformed (too small) attribute.

Note: Other attributes, e.g. BITFIELD32, SINT, UINT.. are also missing: those likely should be added too.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26849"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-17T11:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: add nla be16/32 types to minlen array\n\nBUG: KMSAN: uninit-value in nla_validate_range_unsigned lib/nlattr.c:222 [inline]\nBUG: KMSAN: uninit-value in nla_validate_int_range lib/nlattr.c:336 [inline]\nBUG: KMSAN: uninit-value in validate_nla lib/nlattr.c:575 [inline]\nBUG: KMSAN: uninit-value in __nla_validate_parse+0x2e20/0x45c0 lib/nlattr.c:631\n nla_validate_range_unsigned lib/nlattr.c:222 [inline]\n nla_validate_int_range lib/nlattr.c:336 [inline]\n validate_nla lib/nlattr.c:575 [inline]\n...\n\nThe message in question matches this policy:\n\n [NFTA_TARGET_REV]       = NLA_POLICY_MAX(NLA_BE32, 255),\n\nbut because NLA_BE32 size in minlen array is 0, the validation\ncode will read past the malformed (too small) attribute.\n\nNote: Other attributes, e.g. BITFIELD32, SINT, UINT.. are also missing:\nthose likely should be added too.",
  "id": "GHSA-9vx2-7qpg-xf7m",
  "modified": "2026-04-18T09:30:15Z",
  "published": "2024-04-17T12:32:04Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26849"
    },
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    },
    {
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      "type": "CVSS_V3"
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  ]
}

CVE-2024-26849 (GCVE-0-2024-26849)

Vulnerability from cvelistv5 – Published: 2024-04-17 10:14 – Updated: 2026-05-11 20:05

Title

netlink: add nla be16/32 types to minlen array

Summary

In the Linux kernel, the following vulnerability has been resolved: netlink: add nla be16/32 types to minlen array BUG: KMSAN: uninit-value in nla_validate_range_unsigned lib/nlattr.c:222 [inline] BUG: KMSAN: uninit-value in nla_validate_int_range lib/nlattr.c:336 [inline] BUG: KMSAN: uninit-value in validate_nla lib/nlattr.c:575 [inline] BUG: KMSAN: uninit-value in __nla_validate_parse+0x2e20/0x45c0 lib/nlattr.c:631 nla_validate_range_unsigned lib/nlattr.c:222 [inline] nla_validate_int_range lib/nlattr.c:336 [inline] validate_nla lib/nlattr.c:575 [inline] ... The message in question matches this policy: [NFTA_TARGET_REV] = NLA_POLICY_MAX(NLA_BE32, 255), but because NLA_BE32 size in minlen array is 0, the validation code will read past the malformed (too small) attribute. Note: Other attributes, e.g. BITFIELD32, SINT, UINT.. are also missing: those likely should be added too.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-17 19:19 UTC

Assigner

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/000a68159c0326b46…
https://git.kernel.org/stable/c/80b40f9cb87f3bf58…
https://git.kernel.org/stable/c/0ac219c4c3ab253f3…
https://git.kernel.org/stable/c/a2ab028151841cd83…
https://git.kernel.org/stable/c/7a9d14c63b35f8956…
https://git.kernel.org/stable/c/9a0d18853c280f6a0…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 24ea1c8abaae6541ad95912422a9af4fb858428d , < 000a68159c0326b46c42ec712ab98793e7e625a7 (git) Affected: cbfac0add2afe8960a09806012313765a2179423 , < 80b40f9cb87f3bf5877dfb852765cf92bc03ca77 (git) Affected: ecaf75ffd5f5db320d8b1da0198eef5a5ce64a3f , < 0ac219c4c3ab253f3981f346903458d20bacab32 (git) Affected: ecaf75ffd5f5db320d8b1da0198eef5a5ce64a3f , < a2ab028151841cd833cb53eb99427e0cc990112d (git) Affected: ecaf75ffd5f5db320d8b1da0198eef5a5ce64a3f , < 7a9d14c63b35f89563c5ecbadf918ad64979712d (git) Affected: ecaf75ffd5f5db320d8b1da0198eef5a5ce64a3f , < 9a0d18853c280f6a0ee99f91619f2442a17a323a (git)
Linux	Linux	Affected: 6.1 Unaffected: 0 , < 6.1 (semver) Unaffected: 6.1.81 , ≤ 6.1.* (semver) Unaffected: 6.6.21 , ≤ 6.6.* (semver) Unaffected: 6.7.9 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

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GHSA-9VX2-7QPG-XF7M

CVE-2024-26849 (GCVE-0-2024-26849)

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