firmware: arm_ffa: Fix Endpoint Memory Access Descriptor offset calculation (Linux Linux)

CVE-2026-68400
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.13 % · percentile 2 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Received

Description

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Fix Endpoint Memory Access Descriptor offset calculation Use the descriptor's `ep_mem_offset` to calculate the start of the endpoint memory access array and to comply with the FF-A spec instead of defaulting to `sizeof(struct ffa_mem_region)`. This requires moving `ffa_mem_region_additional_setup()` earlier in the setup flow. Also, add sanity checks to ensure the calculated descriptor offsets do not exceed `max_fragsize`.

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:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected 113580530ee7dc61e668b641d657920734533b9f < 6e902bea625b710f8bf2f40b4ae4b14fa6a33f13 ; affected 113580530ee7dc61e668b641d657920734533b9f < b39b08e6bee812514b449dc874076890e6b871a0 ; affected 113580530ee7dc61e668b641d657920734533b9f < 8ef18f0ab3c0ec1eac77289f5a542bd96a8a6d66 ; affected 113580530ee7dc61e668b641d657920734533b9f < b4d961351aa84fdf0148783fb1f3a1391b8a0adb
Linux · Linuxaffected 6.7 ; unaffected 0 < 6.7 ; unaffected 6.12.114 ≤ 6.12.* ; unaffected 6.18.42 ≤ 6.18.* ; unaffected 7.1.6 ≤ 7.1.* ; unaffected 7.2 ≤ *

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