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In the Linux kernel, the following vulnerability has been resolved:
drm/panthor: harden firmware build-info bounds checks
panthor_fw_read_build_info() checks whether the metadata range fits in the firmware image with hdr.meta_start + hdr.meta_size. Both fields are u32, so the addition can wrap and let an out-of-bounds range pass validation.
The function also reads the "git_sha: " prefix without first checking that the metadata is long enough, and meta_size == 0 can underflow the NULL terminator index.
Use subtraction-based bounds checking and reject metadata that is too short to contain the expected prefix and trailing NULL byte.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linux-hwe-7.0Upgrade linux-oracleUpgrade linux-gcpUpgrade linux-oem-7.0Upgrade linux-ibmUpgrade linux-riscv-7.0Upgrade linuxUpgrade linux-riscvUpgrade linux-aws | Nov 3, 2026 | Sep 16, 2026 |
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