6.8

CVE-2025-68344: ALSA: wavefront: Fix integer overflow in sample size validation

Deferred
AliasesUBUNTU-CVE-2025-68344DEBIAN-CVE-2025-68344
Published 24-12-2025Last modified 11-05-2026

Vulnerability summary

CVE-2025-68344 is a medium (CVSS 6.8) vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.8/10
010
Medium · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.21%
0%100%
Low · 0.00 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 39 · Related 37
DLA-4475-1DLA-4476-1DSA-6127-1OPENSUSE-SU-2026:10039-1OPENSUSE-SU-2026:10301-1OPENSUSE-SU-2026:20145-1

Timeline

  1. 24-12-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: wavefront: Fix integer overflow in sample size validation The wavefront_send_sample() function has an integer overflow issue when validating sample size. The header->size field is u32 but gets cast to int for comparison with dev->freemem Fix by using unsigned comparison to avoid integer overflow.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.21% on 04-10-2026

04-10-202603-11-2026

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.

Ubuntu156 products
  • linuxAll versions (No fix recorded) | < 5.15.0-173.183 | < 6.8.0-110.110 | < 6.17.0-19.19
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1103.110 | < 6.8.0-1052.55 | < 6.17.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.162-1 | < 6.12.63-1 | < 6.17.13-1
Linux1 product
  • linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 488bf86d60077f52810c60dbdf7468c277880167 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < d2f5d8cf1eadb7b33e476f59aa9c6653e4f2b937 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 4f811071e702fbb74933526e2fbadf8c4ed0c0c4 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 02b63f3bc29265bd9e83191792d200ed563acacf | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5588b7c86effffa9bb55383a38800649d7b40778 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < bca11de0a277b8baeb7d006f93b543c907b6e782 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 1823e08f76c68b9e1d26f6d5ef831b96f61a62a0 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 0c4a13ba88594fd4a27292853e736c6b4349823d | 2.6.12

3 vendors · 158 products

References

41 links
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