CVE-2024-50157 (GCVE-0-2024-50157)

Vulnerability from cvelistv5 – Published: 2024-11-07 09:31 – Updated: 2025-05-04 09:47
VLAI?
Title
RDMA/bnxt_re: Avoid CPU lockups due fifo occupancy check loop
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Avoid CPU lockups due fifo occupancy check loop Driver waits indefinitely for the fifo occupancy to go below a threshold as soon as the pacing interrupt is received. This can cause soft lockup on one of the processors, if the rate of DB is very high. Add a loop count for FPGA and exit the __wait_for_fifo_occupancy_below_th if the loop is taking more time. Pacing will be continuing until the occupancy is below the threshold. This is ensured by the checks in bnxt_re_pacing_timer_exp and further scheduling the work for pacing based on the fifo occupancy.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2ad4e6303a6d7518632739eaf67821a3553db1bd , < 7998e7efd1d557af118ac96f48ebc569b929b555 (git)
Affected: 2ad4e6303a6d7518632739eaf67821a3553db1bd , < 2fb6b2e82413e401b72dfeacd7a60416fcfc5b41 (git)
Affected: 2ad4e6303a6d7518632739eaf67821a3553db1bd , < 8be3e5b0c96beeefe9d5486b96575d104d3e7d17 (git)
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    Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.75 , ≤ 6.6.* (semver)
Unaffected: 6.11.6 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/hw/bnxt_re/main.c"
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          "vendor": "Linux",
          "versions": [
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              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Avoid CPU lockups due fifo occupancy check loop\n\nDriver waits indefinitely for the fifo occupancy to go below a threshold\nas soon as the pacing interrupt is received. This can cause soft lockup on\none of the processors, if the rate of DB is very high.\n\nAdd a loop count for FPGA and exit the __wait_for_fifo_occupancy_below_th\nif the loop is taking more time. Pacing will be continuing until the\noccupancy is below the threshold. This is ensured by the checks in\nbnxt_re_pacing_timer_exp and further scheduling the work for pacing based\non the fifo occupancy."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T09:47:30.233Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/7998e7efd1d557af118ac96f48ebc569b929b555"
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          "url": "https://git.kernel.org/stable/c/2fb6b2e82413e401b72dfeacd7a60416fcfc5b41"
        },
        {
          "url": "https://git.kernel.org/stable/c/8be3e5b0c96beeefe9d5486b96575d104d3e7d17"
        }
      ],
      "title": "RDMA/bnxt_re: Avoid CPU lockups due fifo occupancy check loop",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50157",
    "datePublished": "2024-11-07T09:31:34.355Z",
    "dateReserved": "2024-10-21T19:36:19.960Z",
    "dateUpdated": "2025-05-04T09:47:30.233Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1"
}


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  • 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.
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  • 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.



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