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CVE-2026-31539

In the Linux kernel, the following vulnerability has been resolved: smb: smbdirect: introduce 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 d
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:925a87b901bf05e58073bbda8d2f496f9bd3924b603fac9b61d8a7681e103379
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":["fs/smb/common/smbdirect/smbdirect_socket.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e811e60e1cc79923c4388146eb1fa26a7482731e","status":"affected","version":"5fb9b459b3686e366640edd4e62805ef7b4de927","versionType":"git"},{"lessThan":"f99996870222b598914a1f49d7375dc23752c237","status":"affected","version":"5fb9b459b3686e366640edd4e62805ef7b4de927","versionType":"git"},{"lessThan":"6e3c5052f9686192e178806e017b7377155f4bab","status":"affected","version":"5fb…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3f38ff5a5c9ea49ab79091fa3c51f65e0966a6282008529111dcdf3982d2c492 · sha256:af29504485bde80f… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/common/smbdirect/smbdirect_socket.h"],"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…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3f38ff5a5c9ea49ab79091fa3c51f65e0966a6282008529111dcdf3982d2c492 · sha256:af29504485bde80f… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/common/smbdirect/smbdirect_socket.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e811e60e1cc79923c4388146eb1fa26a7482731e","status":"affected","version":"5fb9b459b3686e366640edd4e62805ef7b4de927","versionType":"git"},{"lessThan":"f99996870222b598914a1f49d7375dc23752c237","status":"affected","version":"5fb9b459b3686e366640edd4e62805ef7b4de927","versionType":"git"},{"lessThan":"6e3c5052f9686192e178806e017b7377155f4bab","status":"affected","version":"5fb…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3f38ff5a5c9ea49ab79091fa3c51f65e0966a6282008529111dcdf3982d2c492 · sha256:af29504485bde80f… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/common/smbdirect/smbdirect_socket.h"],"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…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3f38ff5a5c9ea49ab79091fa3c51f65e0966a6282008529111dcdf3982d2c492 · sha256:af29504485bde80f… · /containers/cna/affected/1

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:v2:3f38ff5a5c9ea49ab79091fa3c51f65e0966a6282008529111dcdf3982d2c492 · sha256:af29504485bde80f… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/6e3c5052f9686192e178806e017b7377155f4bab"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3f38ff5a5c9ea49ab79091fa3c51f65e0966a6282008529111dcdf3982d2c492 · sha256:af29504485bde80f… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/e811e60e1cc79923c4388146eb1fa26a7482731e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3f38ff5a5c9ea49ab79091fa3c51f65e0966a6282008529111dcdf3982d2c492 · sha256:af29504485bde80f… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/f99996870222b598914a1f49d7375dc23752c237"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3f38ff5a5c9ea49ab79091fa3c51f65e0966a6282008529111dcdf3982d2c492 · sha256:af29504485bde80f… · /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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