ksmbd: handle empty QUERY_ALLOCATED_RANGES output

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FSCTL_QUERY_ALLOCATED_RANGES can be issued with a valid input buffer but
without room for an output range.  Do not reject the request before
looking at the file layout.  If the query would produce a range, return
STATUS_BUFFER_TOO_SMALL.  If it produces no ranges, return success with an
empty output.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

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Namjae Jeon 2026-07-09 20:08:10 +09:00

parent 86c84cc760

commit 7f07791522

1 changed files with 12 additions and 4 deletions

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fs/smb/server/smb2pdu.c

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