UNKNOWN NVD
CVE-2026-98492
In the Linux kernel, the following vulnerability has been resolved: net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths Fix 3 leaks in macb_a
In the Linux kernel, the following vulnerability has been resolved:
net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths
Fix 3 leaks in macb_alloc() error paths:
- Tx buffer allocated but crossing a 4G boundary: Tx leaked.
- Rx buffer allocation fails: Tx leaked.
- Rx buffer allocated but crossing a 4G boundary: Tx & Rx leaked.
This is because our error handling calls macb_free(bp) which in turn
frees the buffers stored in bp->queues[0], but nothing has been stored
in there. Fix by storing allocated buffers into bp->queues[0] ASAP.
References
- https://git.kernel.org/stable/c/23d42b9a3bcd55b17d3b371544fedc708c2397e9
- https://git.kernel.org/stable/c/259e6cbb6a097da8ced544ee92a6fbde35aa1338
- https://git.kernel.org/stable/c/bda487567d0b7b15dfa876511085c0666b9efad5
This unknown severity vulnerability was published on 2026-10-18 via NVD.
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