CVE-2026-74452

CVE CVE-2026-74452EUVD EUVD-2026-59645Published 2026-08-15T12:26:56.000ZLast changed 2026-08-17T05:47:23.000ZCVSS 7.8

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 2718d91816eeed03c09c8abe872e45f59078768c <2a761b9be5863e1d26a584f0c2d1e114a684ed9a; patch: 0; patch: 7.2; 2718d91816eeed03c09c8abe872e45f59078768c <7f4674d986c15c74327cb6ac6e2e2afecf061e04; 2718d91816eeed03c09c8abe872e45f59078768c <0e57165ca025a67d8dfd17efd2765fdd4925fdab; 2718d91816eeed03c09c8abe872e45f59078768c <a3caaa06809248b996254be5b47e10804a3494e2; 6.10; patch: 6.18.44; patch: 6.12.103; patch: 7.1.8

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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