CVE-2024-43864 (GCVE-0-2024-43864)

Vulnerability from cvelistv5 – Published: 2024-08-20 23:45 – Updated: 2026-08-05 11:36
VLAI
Title
net/mlx5e: Fix CT entry update leaks of modify header context
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix CT entry update leaks of modify header context The cited commit allocates a new modify header to replace the old one when updating CT entry. But if failed to allocate a new one, eg. exceed the max number firmware can support, modify header will be an error pointer that will trigger a panic when deallocating it. And the old modify header point is copied to old attr. When the old attr is freed, the old modify header is lost. Fix it by restoring the old attr to attr when failed to allocate a new modify header context. So when the CT entry is freed, the right modify header context will be freed. And the panic of accessing error pointer is also fixed.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 94ceffb48eac7692677d8093dcde6965b70c4b35 , < daab2cc17b6b6ab158566bba037e9551fd432b59 (git)
Affected: 94ceffb48eac7692677d8093dcde6965b70c4b35 , < 89064d09c56b44c668509bf793c410484f63f5ad (git)
Affected: 94ceffb48eac7692677d8093dcde6965b70c4b35 , < 025f2b85a5e5a46df14ecf162c3c80a957a36d0b (git)
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Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.45 , ≤ 6.6.* (semver)
Unaffected: 6.10.4 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
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Show details on NVD website
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    "redhat_vex": {
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      "title": "kernel: net/mlx5e: Fix CT entry update leaks of modify header context",
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      "title": "SUSE CVE CVE-2024-43864",
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    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-43864\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T16:06:42.010575Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:22.780Z\"}}], \"cna\": {\"title\": \"net/mlx5e: Fix CT entry update leaks of modify header context\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"94ceffb48eac7692677d8093dcde6965b70c4b35\", \"lessThan\": \"daab2cc17b6b6ab158566bba037e9551fd432b59\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"94ceffb48eac7692677d8093dcde6965b70c4b35\", \"lessThan\": \"89064d09c56b44c668509bf793c410484f63f5ad\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"94ceffb48eac7692677d8093dcde6965b70c4b35\", \"lessThan\": \"025f2b85a5e5a46df14ecf162c3c80a957a36d0b\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.3\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.3\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.6.45\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/daab2cc17b6b6ab158566bba037e9551fd432b59\"}, {\"url\": \"https://git.kernel.org/stable/c/89064d09c56b44c668509bf793c410484f63f5ad\"}, {\"url\": \"https://git.kernel.org/stable/c/025f2b85a5e5a46df14ecf162c3c80a957a36d0b\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/mlx5e: Fix CT entry update leaks of modify header context\\n\\nThe cited commit allocates a new modify header to replace the old\\none when updating CT entry. But if failed to allocate a new one, eg.\\nexceed the max number firmware can support, modify header will be\\nan error pointer that will trigger a panic when deallocating it. And\\nthe old modify header point is copied to old attr. When the old\\nattr is freed, the old modify header is lost.\\n\\nFix it by restoring the old attr to attr when failed to allocate a\\nnew modify header context. So when the CT entry is freed, the right\\nmodify header context will be freed. And the panic of accessing\\nerror pointer is also fixed.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.45\", \"versionStartIncluding\": \"6.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.4\", \"versionStartIncluding\": \"6.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11\", \"versionStartIncluding\": \"6.3\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:31:18.088Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-43864\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:31:18.088Z\", \"dateReserved\": \"2024-08-17T09:11:59.279Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-20T23:45:28.833Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.