CVE-2026-68400
firmware: arm_ffa: Fix Endpoint Memory Access Descriptor offset calculation
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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`.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 10, 2026 |
| Last Updated | Aug 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
113580530ee7dc61e668b641d657920734533b9f < b39b08e6bee812514b449dc874076890e6b871a0 113580530ee7dc61e668b641d657920734533b9f < 8ef18f0ab3c0ec1eac77289f5a542bd96a8a6d66 113580530ee7dc61e668b641d657920734533b9f < b4d961351aa84fdf0148783fb1f3a1391b8a0adb
Linux / Linux
6.7