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Critical 9.8Published Jul 25, 2026

CVE-2026-64303spi: fsl-lpspi: terminate the RX channel on TX prepare failure path

Updated under an hour ago ()

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
Not given
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Linux
NVD analysis
Analyzed
Record last updated
Oct 16, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Linux Linux
linux:linux (from the name)
from 09c04466ce7ea494993c0635ba5edb6d2222a806 before ad370d1c7a9a832f77b2341513cd31188c9443af; from 09c04466ce7ea494993c0635ba5edb6d2222a806 before cce2063404b2341e7b2bbf85eddfcd70a31a0033; from 09c04466ce7ea494993c0635ba5edb6d2222a806 before af39a2698f69b584d14a00cffe0f51a2caa15337; from 09c04466ce7ea494993c0635ba5edb6d2222a806 before e65505d91fa036a238968e4c10744244d1b968c4; from 09c04466ce7ea494993c0635ba5edb6d2222a806 before d5c1060218a3749c8a18b36f8169d910fce20639; from 09c04466ce7ea494993c0635ba5edb6d2222a806 before 808033d80d5c9f8adf7e8de9317389270ce13430; from 09c04466ce7ea494993c0635ba5edb6d2222a806 before 9d000bdd250d649a11cd7f733175686877344582; from 09c04466ce7ea494993c0635ba5edb6d2222a806 before 01980b5da56e573d62798d0ff6c86bcaa2b22cbe
CNA record
linux linux_kernel
linux:linux_kernel
from 5.2 before 5.10.261; from 5.11 before 5.15.212; from 5.16 before 6.1.178; from 6.2 before 6.6.145; from 6.7 before 6.12.96; from 6.13 before 6.18.39; from 6.19 before 7.1.4
NVD

References

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The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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