Description
In the Linux kernel, the following vulnerability has been resolved: net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean() The priv->rx_buffer and priv->tx_buffer are alloc'd together as contiguous buffers in uhdlc_init() but freed as two buffers in uhdlc_memclean(). Change the cleanup to only call dma_free_coherent() once on the whole buffer.
Affected products
linux: linux kernel
References8
- git.kernel.org/stable/c/011ae5dd84dc9f05eb9b8e1adff44252ac776e7b Patch
- git.kernel.org/stable/c/0f85a9655445e67bb0238cfc983d7c383b54938e Patch
- git.kernel.org/stable/c/36bd7d5deef936c4e1e3cd341598140e5c14c1d3 Patch
- git.kernel.org/stable/c/6496fb830cbb741d831225cc4e7e5601c6e42970 Patch
- git.kernel.org/stable/c/84b932bc9899d43e5829e6cf088b72d73a922b2b Patch
- git.kernel.org/stable/c/ba8d8429e5d6c36f9a654d2b96b9e043c43d92b4 Patch
- git.kernel.org/stable/c/d68994e37ac3b285692559776e0279a88a3b5f8d Patch
- git.kernel.org/stable/c/d8a522085d09b30aba1016daf1dddac37c0f0285 Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 13 November 2026
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