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CVE-2026-31609

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid double-free in smbd_free_send_io() after smbd_send_batch_flush() smbd_send_batch_flush() already calls smbd_free_send_io(), so we should not call it again after smbd_post_send() moved it to the batch list.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a0617f1450f8d1f2cc0abd219f84e8a8eb8deb6b6a746912f206252fa877db91
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/client/smbdirect.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a9940dcbe5cb92482c04efc7341039ddf7dbf607","status":"affected","version":"cca0526ef2344cab6944d7f441fc24e152da031b","versionType":"git"},{"lessThan":"22b7c1c619d808aec4cad3dc42103345e370d107","status":"affected","version":"37b5c06956183b65e6808b509cf637632016cdf7","versionType":"git"},{"lessThan":"f9a162c2bbcd0ac85bd07c5b37cf20286048b65c","status":"affected","version":"21538121efe6c8c5b51c…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bcdc605706dfa0c50f55c95e35c91d01c10956f868457f4fc731d4ba01a0b365 · sha256:ac621725b7a4175f… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/smbdirect.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.0"},{"lessThan":"7.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.1","versionType":"semver"},{"lessThanO…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bcdc605706dfa0c50f55c95e35c91d01c10956f868457f4fc731d4ba01a0b365 · sha256:ac621725b7a4175f… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/smbdirect.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a9940dcbe5cb92482c04efc7341039ddf7dbf607","status":"affected","version":"cca0526ef2344cab6944d7f441fc24e152da031b","versionType":"git"},{"lessThan":"22b7c1c619d808aec4cad3dc42103345e370d107","status":"affected","version":"37b5c06956183b65e6808b509cf637632016cdf7","versionType":"git"},{"lessThan":"f9a162c2bbcd0ac85bd07c5b37cf20286048b65c","status":"affected","version":"21538121efe6c8c5b51c…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bcdc605706dfa0c50f55c95e35c91d01c10956f868457f4fc731d4ba01a0b365 · sha256:ac621725b7a4175f… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/smbdirect.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.0"},{"lessThan":"7.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.1","versionType":"semver"},{"lessThanO…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bcdc605706dfa0c50f55c95e35c91d01c10956f868457f4fc731d4ba01a0b365 · sha256:ac621725b7a4175f… · /containers/cna/affected/1

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:bcdc605706dfa0c50f55c95e35c91d01c10956f868457f4fc731d4ba01a0b365 · sha256:ac621725b7a4175f… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/22b7c1c619d808aec4cad3dc42103345e370d107"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bcdc605706dfa0c50f55c95e35c91d01c10956f868457f4fc731d4ba01a0b365 · sha256:ac621725b7a4175f… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/27b7c3e916218b5eb2ee350211140e961bfc49be"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bcdc605706dfa0c50f55c95e35c91d01c10956f868457f4fc731d4ba01a0b365 · sha256:ac621725b7a4175f… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/a9940dcbe5cb92482c04efc7341039ddf7dbf607"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bcdc605706dfa0c50f55c95e35c91d01c10956f868457f4fc731d4ba01a0b365 · sha256:ac621725b7a4175f… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/f9a162c2bbcd0ac85bd07c5b37cf20286048b65c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bcdc605706dfa0c50f55c95e35c91d01c10956f868457f4fc731d4ba01a0b365 · sha256:ac621725b7a4175f… · /containers/cna/references/2

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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