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CVE-2026-64387

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query directory replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_query_directory_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0bc866d9ca7f5a534890e22246d6092a1c94e559e73825dfab5788c77e6e7cb5
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":["fs/smb/client/smb2pdu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.8"},{"lessThan":"6.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.96","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanO…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6d34c86627873be7d4cd1a84b4d4a818006e1ea0f2e7069b2ffbf98f9e5f9334 · sha256:f0f9c52e77b14968… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/smb2pdu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3409aedf3c81a810243da94164f6621c9d205c98","status":"affected","version":"433042a91f9373241307725b52de573933ffedbf","versionType":"git"},{"lessThan":"1665f25b1dea30bf2d02e16245d203a944c9d994","status":"affected","version":"4f1fffa2376922f3d1d506e49c0fd445b023a28e","versionType":"git"},{"lessThan":"00b0fa425941438b664950a8ee65dfba2def4336","status":"affected","version":"4f1fffa2376922f3d1d506…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6d34c86627873be7d4cd1a84b4d4a818006e1ea0f2e7069b2ffbf98f9e5f9334 · sha256:f0f9c52e77b14968… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/smb2pdu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.8"},{"lessThan":"6.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.96","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanO…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6d34c86627873be7d4cd1a84b4d4a818006e1ea0f2e7069b2ffbf98f9e5f9334 · sha256:f0f9c52e77b14968… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/smb2pdu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3409aedf3c81a810243da94164f6621c9d205c98","status":"affected","version":"433042a91f9373241307725b52de573933ffedbf","versionType":"git"},{"lessThan":"1665f25b1dea30bf2d02e16245d203a944c9d994","status":"affected","version":"4f1fffa2376922f3d1d506e49c0fd445b023a28e","versionType":"git"},{"lessThan":"00b0fa425941438b664950a8ee65dfba2def4336","status":"affected","version":"4f1fffa2376922f3d1d506…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6d34c86627873be7d4cd1a84b4d4a818006e1ea0f2e7069b2ffbf98f9e5f9334 · sha256:f0f9c52e77b14968… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:v2:6d34c86627873be7d4cd1a84b4d4a818006e1ea0f2e7069b2ffbf98f9e5f9334 · sha256:f0f9c52e77b14968… · /containers/cna/metrics/0/cvssV3_1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/00b0fa425941438b664950a8ee65dfba2def4336"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d34c86627873be7d4cd1a84b4d4a818006e1ea0f2e7069b2ffbf98f9e5f9334 · sha256:f0f9c52e77b14968… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/1665f25b1dea30bf2d02e16245d203a944c9d994"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d34c86627873be7d4cd1a84b4d4a818006e1ea0f2e7069b2ffbf98f9e5f9334 · sha256:f0f9c52e77b14968… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/3317a5d015fca976475aa71df224056777316fde"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d34c86627873be7d4cd1a84b4d4a818006e1ea0f2e7069b2ffbf98f9e5f9334 · sha256:f0f9c52e77b14968… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/3409aedf3c81a810243da94164f6621c9d205c98"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d34c86627873be7d4cd1a84b4d4a818006e1ea0f2e7069b2ffbf98f9e5f9334 · sha256:f0f9c52e77b14968… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/9647492b5e41954be59d5157eddbcd4cdc1656f7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d34c86627873be7d4cd1a84b4d4a818006e1ea0f2e7069b2ffbf98f9e5f9334 · sha256:f0f9c52e77b14968… · /containers/cna/references/4

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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