8.8

CVE-2026-68466: mtd: rawnand: lpc32xx_slc: fail DMA transfer on completion timeout

Received
AliasesUBUNTU-CVE-2026-68466DEBIAN-CVE-2026-68466
Published 15-08-2026Last modified 17-08-2026

Vulnerability summary

CVE-2026-68466 is a high (CVSS 8.8) vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.13%
0%100%
Low · -0.05 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 17 · Related 16
SUSE-SU-2026:5091-1USN-8875-1USN-8875-2USN-8876-1USN-8877-1USN-8878-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 17-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

Decrease -0.05 pp

From 0.18% on 06-10-2026

06-10-202605-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
  • linux≥ 2944a44da09e46b6db2fd2c3334f242b09e05c43, < 307e4f4c1d4e1575b3495ecc6e41aa2adc40f491 | ≥ 2944a44da09e46b6db2fd2c3334f242b09e05c43, < c367af37ce7238c96c6071337149099467160746 | ≥ 2944a44da09e46b6db2fd2c3334f242b09e05c43, < 623c4d8e740debb4af28981e3d4e209f9d0260a4 | ≥ 2944a44da09e46b6db2fd2c3334f242b09e05c43, < bd4a622786f92e1f183f7557ab89dd32891cef60 | ≥ 2944a44da09e46b6db2fd2c3334f242b09e05c43, < 8f5c3ee53a5dc1a0f7cfd780485f2c8b5d17f91d | ≥ 2944a44da09e46b6db2fd2c3334f242b09e05c43, < cf7258f57d18026b8f77c0e80ff1805e9caf7250 | ≥ 2944a44da09e46b6db2fd2c3334f242b09e05c43, < cb2031f8b226efbd13735c07b075e5f14ec11f6d | ≥ 2944a44da09e46b6db2fd2c3334f242b09e05c43, < 17a8ce84964f243c8f89dc7353ac7e8d3137bc74 | 3.7

3 vendors · 171 products

References

28 links
Show all 28 references