Riskcovery

CVE-2026-98475

s390/cmf: Fix virtual vs physical address confusion

State
Published
Severity
Not scored
Published
Oct 18, 2026
Updated
Oct 19, 2026
Reserved
Sep 25, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

s390/cmf: Fix virtual vs physical address confusion

The measurement block address is an absolute address. Define the associated schib_config and schib fields as dma64_t to enable automatic detection of incorrect assignments. Also add the missing virt_to_dma64() translation.

Without this fix, a wrong address will be used by firmware when storing extended format channel measurement data on kernels built with CONFIG_RANDOMIZE_IDENTITY_BASE=y.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 14edd0d73bfef320fd5be11495687ba537aa6341 to before b11f369be31ea11c746833e4d3ad51dcd6b5fa2bAffected
  • 14edd0d73bfef320fd5be11495687ba537aa6341 to before 748ec2f7f5df9b4fc742546a8bfc8aa5d847353eAffected
  • 14edd0d73bfef320fd5be11495687ba537aa6341 to before 7f78226eb743b362f52b212d7763801642539d1cAffected
  • 14edd0d73bfef320fd5be11495687ba537aa6341 to before f4d04425e66af2ecee9d1a49ae0484436f3c2fd1Affected
LinuxLinux
  • 6.9Affected
  • before 6.9Not affected
  • 6.12.112 through 6.12.*Not affected
  • 6.18.55 through 6.18.*Not affected
  • 7.2.9 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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