PT-2026-64524 · Linux · Linux

CVE-2026-64303 · Published 2026-07-25 · Updated 2026-07-25

NVD

In the Linux kernel, the following vulnerability has been resolved:

spi: fsl-lpspi: terminate the RX channel on TX prepare failure path

When dmaengine prep slave sg() fails for the TX channel, the error path terminates the TX DMA channel but leaves the RX channel running. Since the RX channel was already submitted and issued prior to preparing the TX descriptor, returning -EINVAL causes the SPI core to unmap the DMA buffers while the RX DMA engine continues writing to them, leading to potential memory corruption or use-after-free.

Terminate the RX channel before returning on the TX prepare failure path.

Related Identifiers

CVE-2026-64303

Affected Products

Linux

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-64303 · Security Note
• https://git.kernel.org/stable/c/cce2063404b2341e7b2bbf85eddfcd70a31a0033 · Note
• https://git.kernel.org/stable/c/d5c1060218a3749c8a18b36f8169d910fce20639 · Note
• https://git.kernel.org/stable/c/e65505d91fa036a238968e4c10744244d1b968c4 · Note
• https://git.kernel.org/stable/c/01980b5da56e573d62798d0ff6c86bcaa2b22cbe · Note
• https://git.kernel.org/stable/c/808033d80d5c9f8adf7e8de9317389270ce13430 · Note
• https://git.kernel.org/stable/c/af39a2698f69b584d14a00cffe0f51a2caa15337 · Note
• https://git.kernel.org/stable/c/9d000bdd250d649a11cd7f733175686877344582 · Note
• https://git.kernel.org/stable/c/ad370d1c7a9a832f77b2341513cd31188c9443af · Note