CVE-2026-99118

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)

Status

Received - 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-10-28

Last modified

2026-10-28

Affected products

• Linux Kernel (Linux)

References

• https://git.kernel.org/stable/c/dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa
• https://git.kernel.org/stable/c/05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d
• https://git.kernel.org/stable/c/8bb1858db453cd4250e3b633f5d2d09206024ca6