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CVE-2026-99118

UnknownEPSS 0.17%

Last modified

CVE-2026-99118 is a vulnerability of currently unknown severity. 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). EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

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)

Metrics

EPSS Probability
0.17%

6.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= eb805623d8b161342ed9c9caf366f0a295041a6d, < 0e396088fa5c1f96ff43de29c2a2f8807078723d; >= eb805623d8b161342ed9c9caf366f0a295041a6d, < 53068cf3851dd4e00e8e668563e0353d9d79a98b; >= eb805623d8b161342ed9c9caf366f0a295041a6d, < e33921271d4438f4a24014f560e5ab297d7eda3f; >= eb805623d8b161342ed9c9caf366f0a295041a6d, < 4589ad76a6b1011538600ad398baf0b7d73a1252; >= eb805623d8b161342ed9c9caf366f0a295041a6d, < eb7a0ba650d607976d1a0a5e7501d3f14b35d026; >= eb805623d8b161342ed9c9caf366f0a295041a6d, < dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa; >= eb805623d8b161342ed9c9caf366f0a295041a6d, < 05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d; >= eb805623d8b161342ed9c9caf366f0a295041a6d, < 8bb1858db453cd4250e3b633f5d2d09206024ca6
LinuxLinux4.2

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is 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)
How severe is CVE-2026-99118?
Severity scoring for CVE-2026-99118 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2026-99118?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST