net: libwx: fix the using of Rx buffer DMA (Linux Linux)

CVE-2025-38533
CRITICAL 9.8

At a glance

Source
NVD
EPSS
EPSS 0.31 % · percentile 24 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

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.

Weaknesses (CWE)

  • CWE-787 — Out-of-bounds Write

References

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 3c47e8ae113a68da47987750d9896e325d0aeedd < 027701180a7bcb64c42eab291133ef0c87b5b6c5 ; affected 3c47e8ae113a68da47987750d9896e325d0aeedd < ba7c793f96c1c2b944bb6f423d7243f3afc30fe9 ; affected 3c47e8ae113a68da47987750d9896e325d0aeedd < 05c37b574997892a40a0e9b9b88a481566b2367d ; affected 3c47e8ae113a68da47987750d9896e325d0aeedd < 5fd77cc6bd9b368431a815a780e407b7781bcca0
Linux · Linuxaffected 6.3 ; unaffected 0 < 6.3 ; unaffected 6.6.100 ≤ 6.6.* ; unaffected 6.12.40 ≤ 6.12.* ; unaffected 6.15.8 ≤ 6.15.* ; unaffected 6.16 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD