CVE-2025-38533 (GCVE-0-2025-38533)

Vulnerability from cvelistv5 – Published: 2025-08-16 11:12 – Updated: 2026-05-11 21:29
VLAI?
Title
net: libwx: fix the using of Rx buffer DMA
Summary
In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix the using of Rx buffer DMA The wx_rx_buffer structure contained two DMA address fields: 'dma' and 'page_dma'. However, only 'page_dma' was actually initialized and used to program the Rx descriptor. But 'dma' was uninitialized and used in some paths. This could lead to undefined behavior, including DMA errors or use-after-free, if the uninitialized 'dma' was used. Althrough such error has not yet occurred, it is worth fixing in the code.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3c47e8ae113a68da47987750d9896e325d0aeedd , < 027701180a7bcb64c42eab291133ef0c87b5b6c5 (git)
Affected: 3c47e8ae113a68da47987750d9896e325d0aeedd , < ba7c793f96c1c2b944bb6f423d7243f3afc30fe9 (git)
Affected: 3c47e8ae113a68da47987750d9896e325d0aeedd , < 05c37b574997892a40a0e9b9b88a481566b2367d (git)
Affected: 3c47e8ae113a68da47987750d9896e325d0aeedd , < 5fd77cc6bd9b368431a815a780e407b7781bcca0 (git)
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Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.100 , ≤ 6.6.* (semver)
Unaffected: 6.12.40 , ≤ 6.12.* (semver)
Unaffected: 6.15.8 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/wangxun/libwx/wx_lib.c",
            "drivers/net/ethernet/wangxun/libwx/wx_type.h"
          ],
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    "dateReserved": "2025-04-16T04:51:24.023Z",
    "dateUpdated": "2026-05-11T21:29:51.870Z",
    "state": "PUBLISHED"
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      "date": "2026-05-21",
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.