Answer in brief
CVE-2026-68400 records a Unknown severity vulnerability in firmware: arm_ffa: Fix Endpoint Memory Access Descriptor offset calculation. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=113580530ee7dc61e668b641d657920734533b9f <b39b08e6bee812514b449dc874076890e6b871a0 || >=113580530ee7dc61e668b641d657920734533b9f <8ef18f0ab3c0ec1eac77289f5a542bd96a8a6d66 || >=113580530ee7dc61e668b641d657920734533b9f <b4d961351aa84fdf0148783fb1f3a1391b8a0adb | b39b08e6bee812514b449dc874076890e6b871a0, 8ef18f0ab3c0ec1eac77289f5a542bd96a8a6d66, b4d961351aa84fdf0148783fb1f3a1391b8a0adb |
| Linux/Linuxgeneric | 6.7 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
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`.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-68400 records a Unknown severity vulnerability in firmware: arm_ffa: Fix Endpoint Memory Access Descriptor offset calculation. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=113580530ee7dc61e668b641d657920734533b9f <b39b08e6bee812514b449dc874076890e6b871a0 || >=113580530ee7dc61e668b641d657920734533b9f <8ef18f0ab3c0ec1eac77289f5a542bd96a8a6d66 || >=113580530ee7dc61e668b641d657920734533b9f <b4d961351aa84fdf0148783fb1f3a1391b8a0adb | b39b08e6bee812514b449dc874076890e6b871a0, 8ef18f0ab3c0ec1eac77289f5a542bd96a8a6d66, b4d961351aa84fdf0148783fb1f3a1391b8a0adb |
| Linux/Linuxgeneric | 6.7 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
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`.
Quoted source text, attributed separately from HOL analysis.