2022-09-12 6:55 GMT+09:00, Atte Heikkilä <atteh.mailbox@xxxxxxxxx>: > strtolower() corrupts all UTF-8 share names that have a byte in the C0 > (À ISO8859-1) to DE (Þ ISO8859-1) range, since the non-ASCII part of > ISO8859-1 is incompatible with UTF-8. Prevent this by checking that a > byte is in the ASCII range with isascii(), before the conversion to > lowercase with tolower(). Properly handle case-insensitivity of UTF-8 > share names by casefolding them, but fallback to ASCII lowercase > conversion on failure or if CONFIG_UNICODE is not set. Refactor to move > the share name casefolding immediately after the share name extraction. > Also, make the associated constness corrections. > > Signed-off-by: Atte Heikkilä <atteh.mailbox@xxxxxxxxx> > --- > v2: > - added missing kfree() to -E2BIG error path of casefold_sharename() Acked-by: Namjae Jeon <linkinjeon@xxxxxxxxxx> Thanks!
