09.04.2023 13:48, Michael Tokarev пишет:
..
v3:
- fix a bug in getgroups(). In initial implementation I checked
for ret>0 in order to convert returned list of groups to target
byte order. But this clashes with unusual corner case for this
syscall: getgroups(0,NULL) return current nu
linux-user getgroups(), setgroups(), getgroups32() and setgroups32()
used alloca() to allocate grouplist arrays, with unchecked gidsetsize
coming from the "guest". With NGROUPS_MAX being 65536 (linux, and it
is common for an application to allocate NGROUPS_MAX for getgroups()),
this means a typica
