ksmbd: honor byte-range locks for zero data

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FSCTL_SET_ZERO_DATA changes file allocation state and must respect
byte-range locks over the affected part of the file. Check the requested
range, clipped to EOF, before issuing the fallocate operation.

Return STATUS_FILE_LOCK_CONFLICT when the range conflicts with an
existing lock. Ranges starting past EOF are left untouched by the lock
check so they continue to succeed.

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

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Namjae Jeon 2026-07-12 00:03:34 +09:00

parent 3c707d4b3f

commit 8b57448a14

2 changed files with 18 additions and 1 deletions

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7

fs/smb/server/smb2pdu.c

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12

fs/smb/server/vfs.c

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