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mlxsw: spectrum_acl_tcam: Fix warning during rehash

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_acl_tcam: Fix warning during rehash As previously explained, the rehash delayed work migrates filters from one region to another. This is done by iterating over all chunks (all the filters with the same priority) in the region and in each chunk iterating over all the filters. When the work runs out of credits it stores the current chunk and entry as markers in the per-work context so that it would know where to resume the migration from the next time the work is scheduled. Upon error, the chunk marker is reset to NULL, but without resetting the entry markers despite being relative to it. This can result in migration being resumed from an entry that does not belong to the chunk being migrated. In turn, this will eventually lead to a chunk being iterated over as if it is an entry. Because of how the two structures happen to be defined, this does not lead to KASAN splats, but to warnings such as [1]. Fix by creating a helper that resets all the markers and call it from all the places the currently only reset the chunk marker. For good measures also call it when starting a completely new rehash. Add a warning to avoid future cases. [1] WARNING: CPU: 7 PID: 1076 at drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.c:407 mlxsw_afk_encode+0x242/0x2f0 Modules linked in: CPU: 7 PID: 1076 Comm: kworker/7:24 Tainted: G W 6.9.0-rc3-custom-00880-g29e61d91b77b #29 Hardware name: Mellanox Technologies L

Announced Source revision 1
Original source ↗

CVE-2024-36007

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2024-36007

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
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Prerequisites
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Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf",
        "lessThan": "0b88631855026b55cad901ac28d081e0f358e596",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf",
        "lessThan": "1d76bd2a0034d0d08045c1c6adf2235d88982952",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf",
        "lessThan": "039992b6d2df097c65f480dcf269de3d2656f573",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf",
        "lessThan": "751d352858108314efd33dddd5a9a2b6bf7d6916",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf",
        "lessThan": "e890456051fe8c57944b911defb3e6de91315861",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf",
        "lessThan": "17e9e0bbae652b9b2049e51699e93dfa60b2988d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf",
        "lessThan": "743edc8547a92b6192aa1f1b6bb78233fa21dc9b",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.1"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.1",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.4.275",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.216",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.158",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.90",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.30",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.8.9",
        "versionType": "semver",
        "lessThanOrEqual": "6.8.*"
      },
      {
        "status": "unaffected",
        "version": "6.9",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-36007

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#26575 · Revision 1
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Publisher date
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