CVE-2026-99118
drm/i915/dmc: Harden DMC firmware payload parsing
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: drm/i915/dmc: Harden DMC firmware payload parsing Validate the conversion of the DMC firmware size from dwords to bytes using check_mul_overflow() before calculating the firmware payload size. Reject zero-length payloads and zero MMIO counts in the DMC firmware header so malformed firmware is caught early. Also set dmc_fw_size only after the payload allocation succeeds. (cherry picked from commit efde6601a1f1daedfe3dcc2816c934ddb44e3eef)
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 28, 2026 |
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Affected Versions
Linux / Linux
eb805623d8b161342ed9c9caf366f0a295041a6d < dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa eb805623d8b161342ed9c9caf366f0a295041a6d < 05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d eb805623d8b161342ed9c9caf366f0a295041a6d < 8bb1858db453cd4250e3b633f5d2d09206024ca6
Linux / Linux
4.2