ksmbd: require read control for security information

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SMB2 QUERY_INFO security requests currently return owner, group, and DACL
information without checking the access granted to the opened handle. A
handle opened with only SYNCHRONIZE or READ_ATTRIBUTES can consequently
read the security descriptor.

Require READ_CONTROL when OWNER_SECINFO, GROUP_SECINFO, or DACL_SECINFO
is requested and return STATUS_ACCESS_DENIED otherwise.

This fixes smb2.getinfo.getinfo_access.

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

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Namjae Jeon 2026-07-07 00:25:35 +09:00

parent 10aeff72ab

commit d112661f95

1 changed files with 6 additions and 0 deletions

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fs/smb/server/smb2pdu.c

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