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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.

PUBLISHED Reserved 2025-04-16 | Published 2025-08-16 | Updated 2025-08-16 | Assigner Linux

Product status

Default status
unaffected

3c47e8ae113a68da47987750d9896e325d0aeedd before 027701180a7bcb64c42eab291133ef0c87b5b6c5
affected

3c47e8ae113a68da47987750d9896e325d0aeedd before ba7c793f96c1c2b944bb6f423d7243f3afc30fe9
affected

3c47e8ae113a68da47987750d9896e325d0aeedd before 05c37b574997892a40a0e9b9b88a481566b2367d
affected

3c47e8ae113a68da47987750d9896e325d0aeedd before 5fd77cc6bd9b368431a815a780e407b7781bcca0
affected

Default status
affected

6.3
affected

Any version before 6.3
unaffected

6.6.100
unaffected

6.12.40
unaffected

6.15.8
unaffected

6.16
unaffected

References

git.kernel.org/...c/027701180a7bcb64c42eab291133ef0c87b5b6c5

git.kernel.org/...c/ba7c793f96c1c2b944bb6f423d7243f3afc30fe9

git.kernel.org/...c/05c37b574997892a40a0e9b9b88a481566b2367d

git.kernel.org/...c/5fd77cc6bd9b368431a815a780e407b7781bcca0

cve.org (CVE-2025-38533)

nvd.nist.gov (CVE-2025-38533)

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