USB: serial: cypress_m8: fix memory corruption with small endpoint (Linux Linux)

CVE-2026-63956
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.17 % · percentile 6 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: cypress_m8: fix memory corruption with small endpoint Make sure that the interrupt-out endpoint max packet size is at least eight bytes to avoid user-controlled slab corruption or NULL-pointer dereference should a malicious device report a smaller size.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 3416eaa1f8f8d516b77de514e14cf8da256d28fb < 4fcb22218f0a7229b7ce3b3952fb644def293fa5 ; affected 3416eaa1f8f8d516b77de514e14cf8da256d28fb < ad3d1628a46134276546d7a12fedf04be9979158 ; affected 3416eaa1f8f8d516b77de514e14cf8da256d28fb < 52e18ae0c47c5c89e18fcd8022f287f7cc8802ec ; affected 3416eaa1f8f8d516b77de514e14cf8da256d28fb < 4bcaa59f403dbde6328604a500d65ee8d40975d9 ; affected 3416eaa1f8f8d516b77de514e14cf8da256d28fb < 1ef25704bd3b625fd151c09feee459479f71ee64 ; affected 3416eaa1f8f8d516b77de514e14cf8da256d28fb < 284105c40fc31fff90cdab8a0377aaeb92f87f0e
Linux · Linuxaffected 2.6.26 ; unaffected 0 < 2.6.26 ; unaffected 5.10.259 ≤ 5.10.* ; unaffected 5.15.210 ≤ 5.15.* ; unaffected 6.1.176 ≤ 6.1.* ; unaffected 6.6.143 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD