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net: stmmac: Fix zero-division error when disabling tc cbs

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: Fix zero-division error when disabling tc cbs The commit b8c43360f6e4 ("net: stmmac: No need to calculate speed divider when offload is disabled") allows the "port_transmit_rate_kbps" to be set to a value of 0, which is then passed to the "div_s64" function when tc-cbs is disabled. This leads to a zero-division error. When tc-cbs is disabled, the idleslope, sendslope, and credit values the credit values are not required to be configured. Therefore, adding a return statement after setting the txQ mode to DCB when tc-cbs is disabled would prevent a zero-division error.

Announced Group revision 1
Original source ↗

CVE-2024-49977

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-2024-49977

Linux

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

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

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": "b4bca4722fda928810d024350493990de39f1e40",
        "lessThan": "e33fe25b1efe4f2e6a5858786dbc82ae4c44ed4c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2145583e5995598f50d66f8710c86bb1e910ac46",
        "lessThan": "b0da9504a528f05f97d926b4db74ff21917a33e9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "521d42a1c24d638241220d4b9fa7e7a0ed02b88e",
        "lessThan": "5d43e1ad4567d67af2b42d3ab7c14152ffed25c6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a71b686418ee6bcb6d6365f7f6d838d9874d9c64",
        "lessThan": "03582f4752427f60817d896f1a827aff772bd31e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b8c43360f6e424131fa81d3ba8792ad8ff25a09e",
        "lessThan": "e297a2bf56d12fd7f91a0c209eb6ea84361f3368",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b8c43360f6e424131fa81d3ba8792ad8ff25a09e",
        "lessThan": "837d9df9c0792902710149d1a5e0991520af0f93",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b8c43360f6e424131fa81d3ba8792ad8ff25a09e",
        "lessThan": "675faf5a14c14a2be0b870db30a70764df81e2df",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f01782804147a8c21f481b3342c83422c041d2c0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5.10.221",
        "lessThan": "5.10.227",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.15.162",
        "lessThan": "5.15.168",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.1.96",
        "lessThan": "6.1.113",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.6.36",
        "lessThan": "6.6.55",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.9.7",
        "lessThan": "6.10",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.10"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.10",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.227",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.168",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.113",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.55",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.10.14",
        "versionType": "semver",
        "lessThanOrEqual": "6.10.*"
      },
      {
        "status": "unaffected",
        "version": "6.11.3",
        "versionType": "semver",
        "lessThanOrEqual": "6.11.*"
      },
      {
        "status": "unaffected",
        "version": "6.12",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-49977

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#26765 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2024-49977 · Revision 1Source updated