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CVE-2026-31699

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp: Don't attempt to copy CSR to userspace if PSP command failed When retrieving the PEK CSR, don't attempt to copy the blob to userspace if the firmware command failed. If the failure was due to an invalid length, i.e. the userspace buffer+length was too small, copying the number of bytes _firmware_ requires will overflow the kernel-allocated buffer and leak data to userspace. BUG: KASAN: slab-out-of-bounds in in
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:14369c7d4fa2e71f2c12dbaa121e3593eb31157805111f241771787f15be5827
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":["drivers/crypto/ccp/sev-dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.16"},{"lessThan":"4.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/crypto/ccp/sev-dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"502d10a1d9d477e6c7fc7021a2dac7018f4ab8b5","status":"affected","version":"e799035609e1526761aa2f896a974b233d04d36d","versionType":"git"},{"lessThan":"0fb87e44b81385f940b482cba5b3f0bd18fb8185","status":"affected","version":"e799035609e1526761aa2f896a974b233d04d36d","versionType":"git"},{"lessThan":"372116eece159adff631b1508344c8b85ebf9559","status":"affected","version":"e799035609e152676…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/crypto/ccp/sev-dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.16"},{"lessThan":"4.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/crypto/ccp/sev-dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"502d10a1d9d477e6c7fc7021a2dac7018f4ab8b5","status":"affected","version":"e799035609e1526761aa2f896a974b233d04d36d","versionType":"git"},{"lessThan":"0fb87e44b81385f940b482cba5b3f0bd18fb8185","status":"affected","version":"e799035609e1526761aa2f896a974b233d04d36d","versionType":"git"},{"lessThan":"372116eece159adff631b1508344c8b85ebf9559","status":"affected","version":"e799035609e152676…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/0fb87e44b81385f940b482cba5b3f0bd18fb8185"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/111dcc6d0f016076745824a787d25609d0022f4c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/372116eece159adff631b1508344c8b85ebf9559"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/3b4fd8f15765d9a3105b834dba8a05d025e5e16e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/502d10a1d9d477e6c7fc7021a2dac7018f4ab8b5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/59e9ae81f8670ccc780bc75f45a355736f640ec9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/607ba280f2adb5092cf5386c3935afac2ca0031a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/abe4a6d6f606113251868c2c4a06ba904bb41eed"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:694eb518308792bd01cb5365adb3ff54f0a2d696a2e60a8ebe8459e119a01aa1 · sha256:41abb828a7ba4899… · /containers/cna/references/7

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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