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net: stmmac: fix TSO DMA API usage causing oops

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix TSO DMA API usage causing oops Commit 66600fac7a98 ("net: stmmac: TSO: Fix unbalanced DMA map/unmap for non-paged SKB data") moved the assignment of tx_skbuff_dma[]'s members to be later in stmmac_tso_xmit(). The buf (dma cookie) and len stored in this structure are passed to dma_unmap_single() by stmmac_tx_clean(). The DMA API requires that the dma cookie passed to dma_unmap_single() is the same as the value returned from dma_map_single(). However, by moving the assignment later, this is not the case when priv->dma_cap.addr64 > 32 as "des" is offset by proto_hdr_len. This causes problems such as: dwc-eth-dwmac 2490000.ethernet eth0: Tx DMA map failed and with DMA_API_DEBUG enabled: DMA-API: dwc-eth-dwmac 2490000.ethernet: device driver tries to +free DMA memory it has not allocated [device address=0x000000ffffcf65c0] [size=66 bytes] Fix this by maintaining "des" as the original DMA cookie, and use tso_des to pass the offset DMA cookie to stmmac_tso_allocator(). Full details of the crashes can be found at: https://lore.kernel.org/all/d8112193-0386-4e14-b516-37c2d838171a@nvidia.com/ https://lore.kernel.org/all/klkzp5yn5kq5efgtrow6wbvnc46bcqfxs65nz3qy77ujr5turc@bwwhelz2l4dw/

Announced Source revision 1
Original source ↗

CVE-2024-56719

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-2024-56719

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": [
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        "status": "affected",
        "version": "ece593fc9c00741b682869d3f3dc584d37b7c9df",
        "lessThan": "05968b6dd0ffc65d7386608b11a11fb4fdfc9f36",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a3ff23f7c3f0e13f718900803e090fd3997d6bc9",
        "lessThan": "6abcdc9a73274052a9e96a1926994ecf9aedad82",
        "versionType": "git"
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        "status": "affected",
        "version": "07c9c26e37542486e34d767505e842f48f29c3f6",
        "lessThan": "db3667c9bbfbbf5de98e6c9542f7e03fb5243286",
        "versionType": "git"
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        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "58d23d835eb498336716cca55b5714191a309286",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5.15.171",
        "lessThan": "5.15.209",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.1.116",
        "lessThan": "6.1.167",
        "versionType": "semver"
      },
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        "status": "affected",
        "version": "6.6.60",
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        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.11.7",
        "lessThan": "6.12",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/stmicro/stmmac/stmmac_main.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.12"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.12",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.15.209",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.167",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.68",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.7",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.13",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/stmicro/stmmac/stmmac_main.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-56719

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#26840 · Revision 1
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Publisher date
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