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CVE-2026-23230

In the Linux kernel, the following vulnerability has been resolved: smb: client: split cached_fid bitfields to avoid shared-byte RMW races is_open, has_lease and on_list are stored in the same bitfield byte in struct cached_fid but are updated in different code paths that may run concurrently. Bitfield assignments generate byte read–modify–write operations (e.g. `orb $mask, addr` on x86_64), so updating one flag can restore stale values of the others. A possible interleaving is: CPU1: loa
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:017be28d087e10b0fa1794350c249d1aa6f856e53e6108adfcff94d5307ea1e9
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/cached_dir.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"569fecc56bfe4df66f05734d67daef887746656b","status":"affected","version":"ebe98f1447bbccf8228335c62d86af02a0ed23f7","versionType":"git"},{"lessThan":"4386f6af8aaedd0c5ad6f659b40cadcc8f423828","status":"affected","version":"ebe98f1447bbccf8228335c62d86af02a0ed23f7","versionType":"git"},{"lessThan":"3eaa22d688311c708b73f3c68bc6d0c8e3f0f77a","status":"affected","version":"ebe98f1447bbccf8228…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/cached_dir.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.1"},{"lessThan":"6.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.164","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.125","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.72","versionType":"semver"},{"lessTha…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/cna/affected/1

{"defaultStatus":"unknown","product":"RUGGEDCOM RST2428P","vendor":"Siemens","versions":[{"lessThan":"V4.0","status":"affected","version":"0","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/adp/0/affected/0

Affected products and versions

3 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/cached_dir.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"569fecc56bfe4df66f05734d67daef887746656b","status":"affected","version":"ebe98f1447bbccf8228335c62d86af02a0ed23f7","versionType":"git"},{"lessThan":"4386f6af8aaedd0c5ad6f659b40cadcc8f423828","status":"affected","version":"ebe98f1447bbccf8228335c62d86af02a0ed23f7","versionType":"git"},{"lessThan":"3eaa22d688311c708b73f3c68bc6d0c8e3f0f77a","status":"affected","version":"ebe98f1447bbccf8228…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/cached_dir.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.1"},{"lessThan":"6.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.164","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.125","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.72","versionType":"semver"},{"lessTha…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/cna/affected/1
{"defaultStatus":"unknown","product":"RUGGEDCOM RST2428P","vendor":"Siemens","versions":[{"lessThan":"V4.0","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/adp/0/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/cna/metrics/0/cvssV3_1

Source references

7 source assertions
{"url":"https://cert-portal.siemens.com/productcert/html/ssa-253495.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/adp/0/references/0
{"url":"https://git.kernel.org/stable/c/3eaa22d688311c708b73f3c68bc6d0c8e3f0f77a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/4386f6af8aaedd0c5ad6f659b40cadcc8f423828"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/4cfa4c37dcbcfd70866e856200ed8a2894cac578"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/569fecc56bfe4df66f05734d67daef887746656b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/c4b9edd55987384a1f201d3d07ff71e448d79c1b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/ec306600d5ba7148c9dbf8f5a8f1f5c1a044a241"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:dc0e11e72736dbfb47a46ff29c5cfac23aa994d1127f3e38a06fbb176a01c8f1 · sha256:e0c01cdac5afb7e5… · /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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