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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          "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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  }
}


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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.