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-rw-r--r--source3/smbd/dosmode.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/source3/smbd/dosmode.c b/source3/smbd/dosmode.c
index 19b7675a54..cd7a1fdca1 100644
--- a/source3/smbd/dosmode.c
+++ b/source3/smbd/dosmode.c
@@ -706,6 +706,11 @@ int file_set_dosmode(connection_struct *conn, struct smb_filename *smb_fname,
uint32_t old_mode;
struct timespec new_create_timespec;
+ if (!CAN_WRITE(conn)) {
+ errno = EROFS;
+ return -1;
+ }
+
/* We only allow READONLY|HIDDEN|SYSTEM|DIRECTORY|ARCHIVE here. */
dosmode &= (SAMBA_ATTRIBUTES_MASK | FILE_ATTRIBUTE_OFFLINE);