ksmbd: check invalid FileOffset and BeyondFinalZero in FSCTL_ZERO_DATA

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FileOffset should not be greater than BeyondFinalZero in FSCTL_ZERO_DATA.
And don't call ksmbd_vfs_zero_data() if length is zero.

Cc: stable@vger.kernel.org
Reviewed-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

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Namjae Jeon 2022-06-19 22:37:17 +09:00 • committed by Steve French

parent 18e39fb960

commit b5e5f9dfc9

1 changed files with 17 additions and 10 deletions

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fs/ksmbd/smb2pdu.c

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