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CVE-2026-52959

In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Do not use host-controlled page order in cleanup path When issuing an extended guest request (SVM_VMGEXIT_EXT_GUEST_REQUEST), get_ext_report() allocates a buffer to retrieve a certificate blob from the host, keeping track of its size in report_req->certs_len. However, the host may return SNP_GUEST_VMM_ERR_INVALID_LEN, indicating an invalid buffer size, as well as the expected length of such buffer. get_ext_re
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b6dda4b2f0e08356104b8cafc1e52eeca6ef0962bae926169179aa9912777872
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":"unaffected","product":"Linux","programFiles":["drivers/virt/coco/sev-guest/sev-guest.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3f6fb0211b39aaa1b841260681dd02ca6b693ed5","status":"affected","version":"3e385c0d6ce88ac9916dcf84267bd5855d830748","versionType":"git"},{"lessThan":"9e48b4f813d2c3db75d522aa82ab705ce04b7e2d","status":"affected","version":"3e385c0d6ce88ac9916dcf84267bd5855d830748","versionType":"git"},{"lessThan":"23e6a1ca04ae44806439a5a446e62e4d42e80bb4","status":"affected","version":"3e385c…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6777f2db0db01c8497cceb2545d53d3a75674f0e183d5beec36d3e3321228499 · sha256:9f246df0910ee372… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/virt/coco/sev-guest/sev-guest.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_com…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6777f2db0db01c8497cceb2545d53d3a75674f0e183d5beec36d3e3321228499 · sha256:9f246df0910ee372… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/virt/coco/sev-guest/sev-guest.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3f6fb0211b39aaa1b841260681dd02ca6b693ed5","status":"affected","version":"3e385c0d6ce88ac9916dcf84267bd5855d830748","versionType":"git"},{"lessThan":"9e48b4f813d2c3db75d522aa82ab705ce04b7e2d","status":"affected","version":"3e385c0d6ce88ac9916dcf84267bd5855d830748","versionType":"git"},{"lessThan":"23e6a1ca04ae44806439a5a446e62e4d42e80bb4","status":"affected","version":"3e385c…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6777f2db0db01c8497cceb2545d53d3a75674f0e183d5beec36d3e3321228499 · sha256:9f246df0910ee372… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/virt/coco/sev-guest/sev-guest.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_com…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6777f2db0db01c8497cceb2545d53d3a75674f0e183d5beec36d3e3321228499 · sha256:9f246df0910ee372… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6777f2db0db01c8497cceb2545d53d3a75674f0e183d5beec36d3e3321228499 · sha256:9f246df0910ee372… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/23e6a1ca04ae44806439a5a446e62e4d42e80bb4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6777f2db0db01c8497cceb2545d53d3a75674f0e183d5beec36d3e3321228499 · sha256:9f246df0910ee372… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/3f6fb0211b39aaa1b841260681dd02ca6b693ed5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6777f2db0db01c8497cceb2545d53d3a75674f0e183d5beec36d3e3321228499 · sha256:9f246df0910ee372… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/9e48b4f813d2c3db75d522aa82ab705ce04b7e2d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6777f2db0db01c8497cceb2545d53d3a75674f0e183d5beec36d3e3321228499 · sha256:9f246df0910ee372… · /containers/cna/references/1

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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