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bnxt_en: Propagate TPA buffer allocation failures in bnxt_queue_mem_alloc()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Propagate TPA buffer allocation failures in bnxt_queue_mem_alloc() bnxt_alloc_one_tpa_info_data() returns -ENOMEM as soon as one allocation fails. This leaves the remaining rxr->rx_tpa[] entries zeroed. bnxt_queue_mem_alloc() discards that return value, so the partially initialized ring is installed by bnxt_queue_start(). Since the agg_id is picked by the hardware and bnxt_alloc_agg_idx maps it to a SW index in rxr->rx_tpa[], it is possible that an uninitialized slot can be chosen which would hand a zero DMA address to the device. Fix this by checking the return value of bnxt_alloc_one_tpa_info_data and unwinding, freeing the ring buffers.

Announced Group revision 1
Original source ↗

CVE-2026-97571

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-2026-97571

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": "0997443906b96a051011f220a61e6dce4602ec54",
        "lessThan": "d7db2e4953e4626339fd0075564a3e447650d37b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bd649c5cc958169b8a8a3e77ea926d92d472b02a",
        "lessThan": "c8050386a2209b2a474c1eb4bd1574dc19129bfb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bd649c5cc958169b8a8a3e77ea926d92d472b02a",
        "lessThan": "37e08dc821a57fe0592c917486b638caa888b46d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "bd649c5cc958169b8a8a3e77ea926d92d472b02a",
        "lessThan": "b814dfbfeb0a68c9a52073f2caa05a2d5247a329",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6.12.20",
        "lessThan": "6.12.112",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.13"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.13",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.12.112",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.53",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.7",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/broadcom/bnxt/bnxt.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-97571

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38016 · Revision 1
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Publisher date
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