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ten ksmbd server fixes

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Merge tag 'v7.2-rc2-smb3-server-fixes' of git://git.samba.org/ksmbd

Pull smb server fixes from Steve French:
 "This contains a set of SMB server fixes mostly around session setup,
  multichannel/session binding, and protocol-compatible error reporting:

   - Fix SID-to-id mapping so only SIDs with a valid local Unix
     representation are translated, while preserving other Windows
     SIDs in NT ACL xattrs

   - Fix SMB3 multichannel binding across multi-round authentication,
     keep the derived channel key separate from the established session
     key, and enforce the 32-channel session limit

   - Match Windows-compatible close timestamp behavior by coalescing
     automatic write time updates smaller than 15ms

   - Return STATUS_DISK_FULL for SET_INFO allocation failures caused
     by ENOSPC or EFBIG

   - Fix several signed SESSION_SETUP error paths so clients see the
     intended server status instead of replacing it with
     STATUS_ACCESS_DENIED

   - Fix reauthentication on bound channels and reject different-user
     channel binding with STATUS_ACCESS_DENIED

   - Use the referenced session dialect/signing algorithm when
     validating and signing rejected cross-dialect binding requests"

* tag 'v7.2-rc2-smb3-server-fixes' of git://git.samba.org/ksmbd:
  ksmbd: use the session dialect for rejected binding signatures
  ksmbd: mark rejected cross-dialect bindings as signed
  ksmbd: sign rejected SMB2.1 session binding responses
  ksmbd: handle channel binding with a different user
  ksmbd: find bound sessions during reauthentication
  ksmbd: mark invalid session responses as signed
  smb/server: map SET_INFO ENOSPC to disk full
  ksmbd: coalesce sub-15ms write time updates on close
  ksmbd: fix multichannel binding and enforce channel limit
  ksmbd: validate SID namespace before mapping IDs
This commit is contained in:
Linus Torvalds 2026-07-09 16:30:56 -07:00
commit a635d67482
8 changed files with 218 additions and 86 deletions
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