Answer in brief
CVE-2026-74452 records a High severity (CVSS 7.8) vulnerability in drm/panthor: reject firmware sections with oversized data. 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.
CVSS is 7.8. 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 | >=2718d91816eeed03c09c8abe872e45f59078768c <0e57165ca025a67d8dfd17efd2765fdd4925fdab || >=2718d91816eeed03c09c8abe872e45f59078768c <2a761b9be5863e1d26a584f0c2d1e114a684ed9a || >=2718d91816eeed03c09c8abe872e45f59078768c <7f4674d986c15c74327cb6ac6e2e2afecf061e04 || >=2718d91816eeed03c09c8abe872e45f59078768c <a3caaa06809248b996254be5b47e10804a3494e2 | 0e57165ca025a67d8dfd17efd2765fdd4925fdab, 2a761b9be5863e1d26a584f0c2d1e114a684ed9a, 7f4674d986c15c74327cb6ac6e2e2afecf061e04, a3caaa06809248b996254be5b47e10804a3494e2 |
| Linux/Linuxgeneric | 6.10 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: drm/panthor: reject firmware sections with oversized data In panthor_fw_load_section_entry(), the data size to copy is calculated without validating it against the allocated section_size: section->data.size = hdr.data.end - hdr.data.start; If a crafted firmware sets data.size larger than the allocated memory, this could cause a heap buffer overflow in panthor_fw_init_section_mem() memcpy(section->mem->kmap, section->data.buf, section->data.size); Additionally, if the section->data.size exceeds the BO size, could this memset underflow the size calculation, leading to a massive out-of-bounds zeroing of kernel memory? memset(section->mem->kmap + section->data.size, 0, panthor_kernel_bo_size(section->mem) - section->data.size); Reject section entries whose initial data is larger than the section size.
Quoted source text, attributed separately from HOL analysis.