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CVE-2026-31568

In the Linux kernel, the following vulnerability has been resolved: s390/mm: Add missing secure storage access fixups for donated memory There are special cases where secure storage access exceptions happen in a kernel context for pages that don't have the PG_arch_1 bit set. That bit is set for non-exported guest secure storage (memory) but is absent on storage donated to the Ultravisor since the kernel isn't allowed to export donated pages. Prior to this patch we would try to export the page
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c0abbe0acd8fa77a9ba934a251c11b71c63630c69e0450e6dddc30f2bc891a29
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["arch/s390/mm/fault.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:aba682dbd88c2ea24e8a75fc651df66ca55a2cbddcce7cd6d4fd4bcec872ca8f · sha256:19975888dff02049… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/s390/mm/fault.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b36b0e804aee5f20c6798dbeaeaa7cfdb7c6cf88","status":"affected","version":"084ea4d611a3d00ee3930400b262240e10895900","versionType":"git"},{"lessThan":"43ac2d18db1131df0a89993f709131ebfc29f3bd","status":"affected","version":"084ea4d611a3d00ee3930400b262240e10895900","versionType":"git"},{"lessThan":"b00be77302d7ec4ad0367bb236494fce7172b730","status":"affected","version":"084ea4d611a3d00ee3930400b…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:aba682dbd88c2ea24e8a75fc651df66ca55a2cbddcce7cd6d4fd4bcec872ca8f · sha256:19975888dff02049… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/s390/mm/fault.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:aba682dbd88c2ea24e8a75fc651df66ca55a2cbddcce7cd6d4fd4bcec872ca8f · sha256:19975888dff02049… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/s390/mm/fault.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b36b0e804aee5f20c6798dbeaeaa7cfdb7c6cf88","status":"affected","version":"084ea4d611a3d00ee3930400b262240e10895900","versionType":"git"},{"lessThan":"43ac2d18db1131df0a89993f709131ebfc29f3bd","status":"affected","version":"084ea4d611a3d00ee3930400b262240e10895900","versionType":"git"},{"lessThan":"b00be77302d7ec4ad0367bb236494fce7172b730","status":"affected","version":"084ea4d611a3d00ee3930400b…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:aba682dbd88c2ea24e8a75fc651df66ca55a2cbddcce7cd6d4fd4bcec872ca8f · sha256:19975888dff02049… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/43ac2d18db1131df0a89993f709131ebfc29f3bd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aba682dbd88c2ea24e8a75fc651df66ca55a2cbddcce7cd6d4fd4bcec872ca8f · sha256:19975888dff02049… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/b00be77302d7ec4ad0367bb236494fce7172b730"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aba682dbd88c2ea24e8a75fc651df66ca55a2cbddcce7cd6d4fd4bcec872ca8f · sha256:19975888dff02049… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/b36b0e804aee5f20c6798dbeaeaa7cfdb7c6cf88"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:aba682dbd88c2ea24e8a75fc651df66ca55a2cbddcce7cd6d4fd4bcec872ca8f · sha256:19975888dff02049… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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