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.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 3c47e8ae113a68da47987750d9896e325d0aeedd, < 027701180a7bcb64c42eab291133ef0c87b5b6c5; >= 3c47e8ae113a68da47987750d9896e325d0aeedd, < ba7c793f96c1c2b944bb6f423d7243f3afc30fe9; >= 3c47e8ae113a68da47987750d9896e325d0aeedd, < 05c37b574997892a40a0e9b9b88a481566b2367d; >= 3c47e8ae113a68da47987750d9896e325d0aeedd, < 5fd77cc6bd9b368431a815a780e407b7781bcca0 |
| Linux | Linux | 6.3 |
References
- https://git.kernel.org/stable/c/027701180a7bcb64c42eab291133ef0c87b5b6c5Patch
- https://git.kernel.org/stable/c/05c37b574997892a40a0e9b9b88a481566b2367dPatch
- https://git.kernel.org/stable/c/5fd77cc6bd9b368431a815a780e407b7781bcca0Patch
- https://git.kernel.org/stable/c/ba7c793f96c1c2b944bb6f423d7243f3afc30fe9Patch
Timeline
- Published
- Aug 16, 2025
- Last modified
- Jul 30, 2026
- NVD status
- Modified