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CVE-2026-31538

In the Linux kernel, the following vulnerability has been resolved: smb: server: make use of smbdirect_socket.recv_io.credits.available The logic off managing recv credits by counting posted recv_io and granted credits is racy. That's because the peer might already consumed a credit, but between receiving the incoming recv at the hardware and processing the completion in the 'recv_done' functions we likely have a window where we grant credits, which don't really exist. So we better have a de
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:345519268e6ac11fce29d46ced5e84b76fe18973efde3fb8bc1779ee85c48d2e
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/server/transport_rdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.11","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.1","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ef8e8fae0b91d7ef5f4ec1b8c22127f8eb68358e0a3cdbda83a5ccb11cee65cf · sha256:fa4d591c0688659c… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/server/transport_rdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"66c082e3d4651e8629a393a9e182b01eb50fb0a3","status":"affected","version":"89b021a72663c4d96d8a8b85272bb42d991a1c6f","versionType":"git"},{"lessThan":"809cbd31aa4f87a1b889532244c9cf30eb022385","status":"affected","version":"89b021a72663c4d96d8a8b85272bb42d991a1c6f","versionType":"git"},{"lessThan":"26ad87a2cfb8c1384620d1693a166ed87303046e","status":"affected","version":"89b021a72663c4d…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ef8e8fae0b91d7ef5f4ec1b8c22127f8eb68358e0a3cdbda83a5ccb11cee65cf · sha256:fa4d591c0688659c… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/server/transport_rdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.11","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.1","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ef8e8fae0b91d7ef5f4ec1b8c22127f8eb68358e0a3cdbda83a5ccb11cee65cf · sha256:fa4d591c0688659c… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/server/transport_rdma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"66c082e3d4651e8629a393a9e182b01eb50fb0a3","status":"affected","version":"89b021a72663c4d96d8a8b85272bb42d991a1c6f","versionType":"git"},{"lessThan":"809cbd31aa4f87a1b889532244c9cf30eb022385","status":"affected","version":"89b021a72663c4d96d8a8b85272bb42d991a1c6f","versionType":"git"},{"lessThan":"26ad87a2cfb8c1384620d1693a166ed87303046e","status":"affected","version":"89b021a72663c4d…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ef8e8fae0b91d7ef5f4ec1b8c22127f8eb68358e0a3cdbda83a5ccb11cee65cf · sha256:fa4d591c0688659c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ef8e8fae0b91d7ef5f4ec1b8c22127f8eb68358e0a3cdbda83a5ccb11cee65cf · sha256:fa4d591c0688659c… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/26ad87a2cfb8c1384620d1693a166ed87303046e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ef8e8fae0b91d7ef5f4ec1b8c22127f8eb68358e0a3cdbda83a5ccb11cee65cf · sha256:fa4d591c0688659c… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/66c082e3d4651e8629a393a9e182b01eb50fb0a3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ef8e8fae0b91d7ef5f4ec1b8c22127f8eb68358e0a3cdbda83a5ccb11cee65cf · sha256:fa4d591c0688659c… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/809cbd31aa4f87a1b889532244c9cf30eb022385"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ef8e8fae0b91d7ef5f4ec1b8c22127f8eb68358e0a3cdbda83a5ccb11cee65cf · sha256:fa4d591c0688659c… · /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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