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namespace-util: pin pid via pidfd during namespace_open()

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This commit is contained in:
Lennart Poettering
2024-11-08 23:06:44 +01:00
committed by Luca Boccassi
parent 4efc556211
commit 9466fe014f
1 changed files with 6 additions and 4 deletions
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10
src/basic/namespace-util.c
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@@ -136,12 +136,14 @@ int namespace_open(
int *ret_userns_fd,
int *ret_root_fd) {
assert(pid >= 0);
_cleanup_(pidref_done) PidRef pidref = PIDREF_NULL;
int r;
if (pid == 0)
pid = getpid_cached();
r = pidref_set_pid(&pidref, pid);
if (r < 0)
return r;
return pidref_namespace_open(&PIDREF_MAKE_FROM_PID(pid), ret_pidns_fd, ret_mntns_fd, ret_netns_fd, ret_userns_fd, ret_root_fd);
return pidref_namespace_open(&pidref, ret_pidns_fd, ret_mntns_fd, ret_netns_fd, ret_userns_fd, ret_root_fd);
}
int namespace_enter(int pidns_fd, int mntns_fd, int netns_fd, int userns_fd, int root_fd) {