PT-2026-128111
CVE-2026-99118
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Published
2026-10-28
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Updated
2026-10-28
Description by
Score
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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)
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