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CVE-2026-31711

In the Linux kernel, the following vulnerability has been resolved: smb: server: fix active_num_conn leak on transport allocation failure Commit 77ffbcac4e56 ("smb: server: fix leak of active_num_conn in ksmbd_tcp_new_connection()") addressed the kthread_run() failure path. The earlier alloc_transport() == NULL path in the same function has the same leak, is reachable pre-authentication via any TCP connect to port 445, and was empirically reproduced on UML (ARCH=um, v7.0-rc7): a small number
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0e2f88814f7c6149db7d0c69c19fa38f721b7cb3602f402e687d3d9f5f85b161
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/server/transport_tcp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"dc2e7d595d68cf1be1ba64e3d30ebf3266bf7242","status":"affected","version":"4210c3555db4b38bade92331b153e583261f05f9","versionType":"git"},{"lessThan":"60734c8bc3b4aa0672e251f08dda81977e4b5387","status":"affected","version":"d5d7847e57ac69fa99c18b363a34419bcdb5a281","versionType":"git"},{"lessThan":"97f8d2648ef4871e4cd335e2d769cb40054a6772","status":"affected","version":"0d0d4680db22eda1…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/server/transport_tcp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.2"},{"lessThan":"6.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.136","versionType":"semver"},{"les…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/server/transport_tcp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"dc2e7d595d68cf1be1ba64e3d30ebf3266bf7242","status":"affected","version":"4210c3555db4b38bade92331b153e583261f05f9","versionType":"git"},{"lessThan":"60734c8bc3b4aa0672e251f08dda81977e4b5387","status":"affected","version":"d5d7847e57ac69fa99c18b363a34419bcdb5a281","versionType":"git"},{"lessThan":"97f8d2648ef4871e4cd335e2d769cb40054a6772","status":"affected","version":"0d0d4680db22eda1…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/server/transport_tcp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.2"},{"lessThan":"6.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.136","versionType":"semver"},{"les…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /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:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /containers/cna/metrics/0/cvssV3_1

Source references

7 source assertions
{"url":"https://git.kernel.org/stable/c/283027aa93380380a0994f35dde3ec95318f2654"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/295a9fc6789d1011c36ded9f0f2907bb34fa0de4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/60734c8bc3b4aa0672e251f08dda81977e4b5387"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/6551300dc452ac16a855a83dbd1e74899542d3b3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/97f8d2648ef4871e4cd335e2d769cb40054a6772"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/dc2e7d595d68cf1be1ba64e3d30ebf3266bf7242"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/fb48185bcd946d42de7017cf27f912f8ab26acf0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:27bbdc8e7addcfe7d59c9c0f1ba4655e5040fb9eead440616e8d675c03312dc3 · sha256:4698abfab49813b6… · /containers/cna/references/5

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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