Florian Weimer, le sam. 01 janv. 2022 19:48:21 +0100, a ecrit: > * Samuel Thibault via Libc-alpha: > >> > + if (&__trivfs_server_name && __trivfs_server_name > >> > + && __trivfs_server_name[0] == 'r' > >> > + && __trivfs_server_name[1] == 'a' > >> > + && __trivfs_server_name[2] == 'n' > >> > + && __trivfs_server_name[3] == 'd' > >> > + && __trivfs_server_name[4] == 'o' > >> > + && __trivfs_server_name[5] == 'm' > >> > + && __trivfs_server_name[6] == '\0') > >> > /* We are random, don't try to read ourselves! */ > >> > return length; > >> > >> How does this work? It's a new synbol name, so there's no definition, > >> so the weak reference is always null. > > > > It is peeking it from the program. > > > > Basically the problem is that the random translator uses glibc, whose > > malloc implementation started using /dev/random in glibc 2.34, thus > > reading itself. > > I still don't understand. Why isn't the condition always false?
The definition is in the random translator, which exports it in its dynamic symbol table. Samuel
