CVE-2026-98168 (GCVE-0-2026-98168)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:44 – Updated: 2026-10-06 08:44
VLAI
Title
smb: client: fix reparse buffer bounds in cifs_query_reparse_point()
Summary
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix reparse buffer bounds in cifs_query_reparse_point() In cifs_query_reparse_point(), the start >= end check before casting to struct reparse_data_buffer * only ensures the start pointer is within the response. It fails to verify that there is enough space remaining for the fixed 8-byte header of the structure. If a server provides a DataOffset that leaves less than 8 bytes remaining, the check passes, but subsequent reads of ReparseTag and ReparseDataLength will occur out-of-bounds. Fix this by ensuring the remaining space is at least the size of the reparse_data_buffer structure before accessing its fields.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 48ca7139ab7f0bbed95ff7a901ea497017769657 , < 3d67f155fe5813cfb02a551a9a12d6ea06a902e9 (git)
Affected: 56e84c64fc257a95728ee73165456b025c48d408 , < d1152c96a3002e3df6b9a5b007cecaa7b19b4f79 (git)
Affected: 56e84c64fc257a95728ee73165456b025c48d408 , < 8dc5db3a0e583ea8d31d0613cefd99e93e095c3c (git)
Affected: 56e84c64fc257a95728ee73165456b025c48d408 , < 5f0306e731e2f46e91419eae57eee3a241c055e0 (git)
Affected: 848d78e3625f15de09d34a562dc49a98b78a62f3 (git)
Affected: c13b779d26b3702fba8f7d5fe757aba5bda85fd0 (git)
Affected: 6.12.34 , < 6.12.112 (semver)
Affected: 6.6.94 , < 6.7 (semver)
Affected: 6.15.3 , < 6.16 (semver)
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Linux Linux Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.54 , ≤ 6.18.* (semver)
Unaffected: 7.2.8 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)
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          "programFiles": [
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.