CVE-2026-64303
spi: fsl-lpspi: terminate the RX channel on TX prepare failure path
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 25, 2026 |
| Last Updated | Aug 5, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
09c04466ce7ea494993c0635ba5edb6d2222a806 < ad370d1c7a9a832f77b2341513cd31188c9443af 09c04466ce7ea494993c0635ba5edb6d2222a806 < cce2063404b2341e7b2bbf85eddfcd70a31a0033 09c04466ce7ea494993c0635ba5edb6d2222a806 < af39a2698f69b584d14a00cffe0f51a2caa15337 09c04466ce7ea494993c0635ba5edb6d2222a806 < e65505d91fa036a238968e4c10744244d1b968c4 09c04466ce7ea494993c0635ba5edb6d2222a806 < d5c1060218a3749c8a18b36f8169d910fce20639 09c04466ce7ea494993c0635ba5edb6d2222a806 < 808033d80d5c9f8adf7e8de9317389270ce13430 09c04466ce7ea494993c0635ba5edb6d2222a806 < 9d000bdd250d649a11cd7f733175686877344582 09c04466ce7ea494993c0635ba5edb6d2222a806 < 01980b5da56e573d62798d0ff6c86bcaa2b22cbe
Linux / Linux
5.2
References
git.kernel.org: https://git.kernel.org/stable/c/ad370d1c7a9a832f77b2341513cd31188c9443af git.kernel.org: https://git.kernel.org/stable/c/cce2063404b2341e7b2bbf85eddfcd70a31a0033 git.kernel.org: https://git.kernel.org/stable/c/af39a2698f69b584d14a00cffe0f51a2caa15337 git.kernel.org: https://git.kernel.org/stable/c/e65505d91fa036a238968e4c10744244d1b968c4 git.kernel.org: https://git.kernel.org/stable/c/d5c1060218a3749c8a18b36f8169d910fce20639 git.kernel.org: https://git.kernel.org/stable/c/808033d80d5c9f8adf7e8de9317389270ce13430 git.kernel.org: https://git.kernel.org/stable/c/9d000bdd250d649a11cd7f733175686877344582 git.kernel.org: https://git.kernel.org/stable/c/01980b5da56e573d62798d0ff6c86bcaa2b22cbe