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Merge branch 'empty-group-list' into 'master'

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dbus-sysdeps-unix: Handle empty supplementary group list

See merge request dbus/dbus!422
This commit is contained in:
Simon McVittie 2023-08-01 18:23:09 +00:00
commit 7ab384de57
1 changed files with 2 additions and 7 deletions
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9
dbus/dbus-sysdeps-unix.c
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@ -1956,6 +1956,8 @@ add_groups_to_credentials (int client_fd,
{
#if defined(__linux__) && defined(SO_PEERGROUPS)
_DBUS_STATIC_ASSERT (sizeof (gid_t) <= sizeof (dbus_gid_t));
/* This function assumes socklen_t is unsigned, which is true on Linux */
_DBUS_STATIC_ASSERT (((socklen_t) -1) > 0);
gid_t *buf = NULL;
socklen_t len = 1024;
dbus_bool_t oom = FALSE;
@ -2001,13 +2003,6 @@ add_groups_to_credentials (int client_fd,
_dbus_verbose ("will try again with %lu\n", (unsigned long) len);
}
if (len <= 0)
{
_dbus_verbose ("getsockopt(SO_PEERGROUPS) yielded <= 0 bytes: %ld\n",
(long) len);
goto out;
}
if (len > n_gids * sizeof (gid_t))
{
_dbus_verbose ("%lu > %zu", (unsigned long) len, n_gids * sizeof (gid_t));