don't read beyond end of buffer for strlen(cache_name) > 31

[meyering]

• eio_ttc.c (eio_cache_rec_fill): Ensure that rec->cr_name is always NUL-terminated. It would lack a trailing NUL whenever strlen(dmc->cache_name) > CACHE_NAME_LEN. The length of the cache_name string may be up to DEV_PATHLEN-1 (127), while the shorter destination buffer has length CACHE_NAME_SZ, 32. Each subsequent use of that cr_name member requires that it be NUL-terminated, so any use would read beyond end of buffer.

Signed-off-by: Jim Meyering meyering@fb.com

[sanoj-stec]

fixed in the commit 8a6318a7dc8c6e9baba892f5196be1e7dd0f90d2 thanks, sanoj