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.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HAffected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= c19b6d246a35627c3a69b2fa6bdece212b48214b, < 6496fb830cbb741d831225cc4e7e5601c6e42970; >= c19b6d246a35627c3a69b2fa6bdece212b48214b, < ba8d8429e5d6c36f9a654d2b96b9e043c43d92b4; >= c19b6d246a35627c3a69b2fa6bdece212b48214b, < 011ae5dd84dc9f05eb9b8e1adff44252ac776e7b; >= c19b6d246a35627c3a69b2fa6bdece212b48214b, < 0f85a9655445e67bb0238cfc983d7c383b54938e; >= c19b6d246a35627c3a69b2fa6bdece212b48214b, < 84b932bc9899d43e5829e6cf088b72d73a922b2b; >= c19b6d246a35627c3a69b2fa6bdece212b48214b, < d8a522085d09b30aba1016daf1dddac37c0f0285; >= c19b6d246a35627c3a69b2fa6bdece212b48214b, < d68994e37ac3b285692559776e0279a88a3b5f8d; >= c19b6d246a35627c3a69b2fa6bdece212b48214b, < 36bd7d5deef936c4e1e3cd341598140e5c14c1d3 |
| Linux | Linux | 4.8 |
References
- https://git.kernel.org/stable/c/011ae5dd84dc9f05eb9b8e1adff44252ac776e7bPatch
- https://git.kernel.org/stable/c/0f85a9655445e67bb0238cfc983d7c383b54938ePatch
- https://git.kernel.org/stable/c/36bd7d5deef936c4e1e3cd341598140e5c14c1d3Patch
- https://git.kernel.org/stable/c/6496fb830cbb741d831225cc4e7e5601c6e42970Patch
- https://git.kernel.org/stable/c/84b932bc9899d43e5829e6cf088b72d73a922b2bPatch
- https://git.kernel.org/stable/c/ba8d8429e5d6c36f9a654d2b96b9e043c43d92b4Patch
- https://git.kernel.org/stable/c/d68994e37ac3b285692559776e0279a88a3b5f8dPatch
- https://git.kernel.org/stable/c/d8a522085d09b30aba1016daf1dddac37c0f0285Patch
Timeline
- Published
- May 6, 2026
- Last modified
- Nov 11, 2026
- NVD status
- Analyzed