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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2025-68806

ksmbd: fix buffer validation by including null terminator size in EA length

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix buffer validation by including null terminator size in EA length The smb2_set_ea function, which handles Extended Attributes (EA), was performing buffer validation checks that incorrectly omitted the size of the null terminating character (+1 byte) for EA Name. This patch fixes the issue by explicitly adding '+ 1' to EaNameLength where the null terminator is expected to be present in the buffer, ensuring the validation accurately reflects the total required buffer size.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • d070c4dd2a5bed4e9832eec5b6c029c7d14892ea to < cae52c592a07e1d3fa3338a5f064a374a5f26750affected
  • 0ba5439d9afa2722e7728df56f272c89987540a4 to < a28a375a5439eb474e9f284509a407efb479c925affected
  • 0ba5439d9afa2722e7728df56f272c89987540a4 to < d26af6d14da43ab92d07bc60437c62901dc522e6affected
  • 0ba5439d9afa2722e7728df56f272c89987540a4 to < 6dc8cf6e7998ef7aeb9383a4c2904ea5d22fa2e4affected
  • 0ba5439d9afa2722e7728df56f272c89987540a4 to < 95d7a890e4b03e198836d49d699408fd1867cb55affected
  • bb5bf157b5be1643cccc7cbbe57fcdef9ae52c2caffected
  • 1a13ecb96230e8b7b91967e292836f7b01ec8111affected
  • 404e7c01e16288b5e0171d1d8fd3328e806d0794affected
  • 6.1.52 to < 6.1.160affected
  • 5.15.131 to < 5.16affected
  • 6.4.15 to < 6.5affected
  • 6.5.2 to < 6.6affected

Linux Linux

Default version status: affected

  • 6.6affected
  • 0 to < 6.6unaffected
  • 6.1.160 to ≤ 6.1.*unaffected
  • 6.6.120 to ≤ 6.6.*unaffected
  • 6.12.64 to ≤ 6.12.*unaffected
  • 6.18.3 to ≤ 6.18.*unaffected
  • 6.19 to ≤ *unaffected

References