CVE-2026-68466

mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout

HIGH
8.8
CVSS Score
Published: August 15, 2026 at 05:51 AM UTC
Updated: August 17, 2026 at 06:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.8
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout lpc32xx_xmit_dma() waits for the DMA completion callback but ignores wait_for_completion_timeout(). A timed out DMA transfer is therefore unmapped and reported as successful to the NAND read/write path. Return -ETIMEDOUT when the completion wait expires. Terminate the DMA channel before unmapping the scatterlist so the timed out transfer cannot continue to access the buffer after the error is returned.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.7 ≤ v < 5.10.2613.7 ≤ v < 5.15.2123.7 ≤ v < 6.1.1783.7 ≤ v < 6.12.973.7 ≤ v < 6.18.403.7 ≤ v < 6.6.1453.7 ≤ v < 7.1.53.7 ≤ v < 7.22944a44da09e46b6db2fd2c3334f242b09e05c433.7
Vendor states this is fixed in 17a8ce84964f243c8f89dc7353ac7e8d3137bc74 (fixed)
Vendor states this is fixed in 307e4f4c1d4e1575b3495ecc6e41aa2adc40f491 (fixed)
Vendor states this is fixed in 623c4d8e740debb4af28981e3d4e209f9d0260a4 (fixed)
Vendor states this is fixed in 8f5c3ee53a5dc1a0f7cfd780485f2c8b5d17f91d (fixed)
Vendor states this is fixed in bd4a622786f92e1f183f7557ab89dd32891cef60 (fixed)
Vendor states this is fixed in c367af37ce7238c96c6071337149099467160746 (fixed)
Vendor states this is fixed in cb2031f8b226efbd13735c07b075e5f14ec11f6d (fixed)
Vendor states this is fixed in cf7258f57d18026b8f77c0e80ff1805e9caf7250 (fixed)
Vendor states this is fixed in 3.7 (unaffected)
Vendor states this is fixed in 5.10.261 (unaffected)
Vendor states this is fixed in 5.15.212 (unaffected)
Vendor states this is fixed in 6.1.178 (unaffected)
Vendor states this is fixed in 6.12.97 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 6.6.145 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

8.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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