Linux Kernel: ec_bhf DMA Free Handle Invalidation
CVE-2026-43283 Published on May 6, 2026
net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle
dma_free_coherent() in error path takes priv->rx_buf.alloc_len as
the dma handle. This would lead to improper unmapping of the buffer.
Change the dma handle to priv->rx_buf.alloc_phys.
Products Associated with CVE-2026-43283
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Affected Versions
Linux:- Version 6af55ff52b02d492d45db88df3e461fa51a6f753 and below 0f589ee54fd6d76d3f75e745f7f12c64cbd749e5 is affected.
- Version 6af55ff52b02d492d45db88df3e461fa51a6f753 and below accd0599bc8e73b962247c6c6c70ca7aa1f8e8d0 is affected.
- Version 6af55ff52b02d492d45db88df3e461fa51a6f753 and below 8320727be7ff704e07c87624efc2a4a75f54b3ce is affected.
- Version 6af55ff52b02d492d45db88df3e461fa51a6f753 and below 1e300c33ef3cc544c2b9c693778fe9490cfe9184 is affected.
- Version 6af55ff52b02d492d45db88df3e461fa51a6f753 and below 1b1371cd4032ae859838ebc74215f569987bb197 is affected.
- Version 6af55ff52b02d492d45db88df3e461fa51a6f753 and below 1b1d3c5d58a80a19d017a409aa2308162bab5bbf is affected.
- Version 6af55ff52b02d492d45db88df3e461fa51a6f753 and below 7e54ff938bebb173822b4c38b33fc164c1cabf92 is affected.
- Version 6af55ff52b02d492d45db88df3e461fa51a6f753 and below ffe68c3766997d82e9ccaf1cdbd47eba269c4aa2 is affected.
- Version 3.15 is affected.
- Before 3.15 is unaffected.
- Version 5.10.252, <= 5.10.* is unaffected.
- Version 5.15.202, <= 5.15.* is unaffected.
- Version 6.1.165, <= 6.1.* is unaffected.
- Version 6.6.128, <= 6.6.* is unaffected.
- Version 6.12.75, <= 6.12.* is unaffected.
- Version 6.18.16, <= 6.18.* is unaffected.
- Version 6.19.6, <= 6.19.* is unaffected.
- Version 7.0, <= * is unaffected.