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CVE-2026-68466

HIGHCVSS 8.8/10EPSS 0.18%

Last modified

CVE-2026-68466 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability
0.18%

7.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 2944a44da09e46b6db2fd2c3334f242b09e05c43, < 307e4f4c1d4e1575b3495ecc6e41aa2adc40f491; >= 2944a44da09e46b6db2fd2c3334f242b09e05c43, < c367af37ce7238c96c6071337149099467160746; >= 2944a44da09e46b6db2fd2c3334f242b09e05c43, < 623c4d8e740debb4af28981e3d4e209f9d0260a4; >= 2944a44da09e46b6db2fd2c3334f242b09e05c43, < bd4a622786f92e1f183f7557ab89dd32891cef60; >= 2944a44da09e46b6db2fd2c3334f242b09e05c43, < 8f5c3ee53a5dc1a0f7cfd780485f2c8b5d17f91d; >= 2944a44da09e46b6db2fd2c3334f242b09e05c43, < cf7258f57d18026b8f77c0e80ff1805e9caf7250; >= 2944a44da09e46b6db2fd2c3334f242b09e05c43, < cb2031f8b226efbd13735c07b075e5f14ec11f6d; >= 2944a44da09e46b6db2fd2c3334f242b09e05c43, < 17a8ce84964f243c8f89dc7353ac7e8d3137bc74
LinuxLinux3.7

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-68466?
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.
How severe is CVE-2026-68466?
CVE-2026-68466 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-68466?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST