CVE-2026-68466

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

State: Published
Severity: 8.8 High
Published: Aug 15, 2026
Updated: Aug 17, 2026
Reserved: Jul 30, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	2944a44da09e46b6db2fd2c3334f242b09e05c43 to before 307e4f4c1d4e1575b3495ecc6e41aa2adc40f491Affected 2944a44da09e46b6db2fd2c3334f242b09e05c43 to before c367af37ce7238c96c6071337149099467160746Affected 2944a44da09e46b6db2fd2c3334f242b09e05c43 to before 623c4d8e740debb4af28981e3d4e209f9d0260a4Affected 2944a44da09e46b6db2fd2c3334f242b09e05c43 to before bd4a622786f92e1f183f7557ab89dd32891cef60Affected 2944a44da09e46b6db2fd2c3334f242b09e05c43 to before 8f5c3ee53a5dc1a0f7cfd780485f2c8b5d17f91dAffected 2944a44da09e46b6db2fd2c3334f242b09e05c43 to before cf7258f57d18026b8f77c0e80ff1805e9caf7250Affected 2944a44da09e46b6db2fd2c3334f242b09e05c43 to before cb2031f8b226efbd13735c07b075e5f14ec11f6dAffected 2944a44da09e46b6db2fd2c3334f242b09e05c43 to before 17a8ce84964f243c8f89dc7353ac7e8d3137bc74Affected
LinuxLinux	3.7Affected before 3.7Not affected 5.10.261 through 5.10.Not affected 5.15.212 through 5.15.Not affected 6.1.178 through 6.1.Not affected 6.6.145 through 6.6.Not affected 6.12.97 through 6.12.Not affected 6.18.40 through 6.18.Not affected 7.1.5 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

2944a44da09e46b6db2fd2c3334f242b09e05c43 to before 307e4f4c1d4e1575b3495ecc6e41aa2adc40f491Affected
2944a44da09e46b6db2fd2c3334f242b09e05c43 to before c367af37ce7238c96c6071337149099467160746Affected
2944a44da09e46b6db2fd2c3334f242b09e05c43 to before 623c4d8e740debb4af28981e3d4e209f9d0260a4Affected
2944a44da09e46b6db2fd2c3334f242b09e05c43 to before bd4a622786f92e1f183f7557ab89dd32891cef60Affected
2944a44da09e46b6db2fd2c3334f242b09e05c43 to before 8f5c3ee53a5dc1a0f7cfd780485f2c8b5d17f91dAffected
2944a44da09e46b6db2fd2c3334f242b09e05c43 to before cf7258f57d18026b8f77c0e80ff1805e9caf7250Affected
2944a44da09e46b6db2fd2c3334f242b09e05c43 to before cb2031f8b226efbd13735c07b075e5f14ec11f6dAffected
2944a44da09e46b6db2fd2c3334f242b09e05c43 to before 17a8ce84964f243c8f89dc7353ac7e8d3137bc74Affected

LinuxLinux

3.7Affected
before 3.7Not affected
5.10.261 through 5.10.*Not affected
5.15.212 through 5.15.*Not affected
6.1.178 through 6.1.*Not affected
6.6.145 through 6.6.*Not affected
6.12.97 through 6.12.*Not affected
6.18.40 through 6.18.*Not affected
7.1.5 through 7.1.*Not affected
7.2 and laterNot affected

References

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