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Because of .., files outside the share directory could be accessed. To prevent this, normalize the given path and remove all . and .. components. In addition to the usual large set of regression tests (smbtorture and xfstests), ran various tests on this to specifically check path name validation including libsmb2 tests to verify path normalization: ./examples/smb2-ls-async smb://172.30.1.15/homes2/../ ./examples/smb2-ls-async smb://172.30.1.15/homes2/foo/../ ./examples/smb2-ls-async smb://172.30.1.15/homes2/foo/../../ ./examples/smb2-ls-async smb://172.30.1.15/homes2/foo/../ ./examples/smb2-ls-async smb://172.30.1.15/homes2/foo/..bar/ ./examples/smb2-ls-async smb://172.30.1.15/homes2/foo/bar../ ./examples/smb2-ls-async smb://172.30.1.15/homes2/foo/bar.. ./examples/smb2-ls-async smb://172.30.1.15/homes2/foo/bar../../../../ Signed-off-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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|---|---|---|
| .. | ||
| mgmt | ||
| asn1.c | ||
| asn1.h | ||
| auth.c | ||
| auth.h | ||
| connection.c | ||
| connection.h | ||
| crypto_ctx.c | ||
| crypto_ctx.h | ||
| glob.h | ||
| Kconfig | ||
| ksmbd_netlink.h | ||
| ksmbd_spnego_negtokeninit.asn1 | ||
| ksmbd_spnego_negtokentarg.asn1 | ||
| ksmbd_work.c | ||
| ksmbd_work.h | ||
| Makefile | ||
| misc.c | ||
| misc.h | ||
| ndr.c | ||
| ndr.h | ||
| nterr.h | ||
| ntlmssp.h | ||
| oplock.c | ||
| oplock.h | ||
| server.c | ||
| server.h | ||
| smb2misc.c | ||
| smb2ops.c | ||
| smb2pdu.c | ||
| smb2pdu.h | ||
| smb_common.c | ||
| smb_common.h | ||
| smbacl.c | ||
| smbacl.h | ||
| smbfsctl.h | ||
| smbstatus.h | ||
| transport_ipc.c | ||
| transport_ipc.h | ||
| transport_rdma.c | ||
| transport_rdma.h | ||
| transport_tcp.c | ||
| transport_tcp.h | ||
| unicode.c | ||
| unicode.h | ||
| uniupr.h | ||
| vfs_cache.c | ||
| vfs_cache.h | ||
| vfs.c | ||
| vfs.h | ||
| xattr.h | ||