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| author | Denys Vlasenko | 2017-11-09 16:06:33 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2017-11-09 16:06:33 +0100 |
| commit | 1b510900e24459353922a1bc83c0b58bc8bafe1c (patch) | |
| tree | 191b7ef59be2b29ffa44b0a1a08f27acbad22a90 | |
| parent | b5a0d9d8673f8c84c0135fbc6227680ee874d261 (diff) | |
| download | busybox-1b510900e24459353922a1bc83c0b58bc8bafe1c.zip busybox-1b510900e24459353922a1bc83c0b58bc8bafe1c.tar.gz | |
unshare: -r should map root to user, not the other way around
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | util-linux/unshare.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/util-linux/unshare.c b/util-linux/unshare.c index a4bbb8c..7c295da 100644 --- a/util-linux/unshare.c +++ b/util-linux/unshare.c @@ -339,7 +339,7 @@ int unshare_main(int argc UNUSED_PARAM, char **argv) } if (opts & OPT_map_root) { - char uidmap_buf[sizeof("%u 0 1") + sizeof(int)*3]; + char uidmap_buf[sizeof("0 %u 1") + sizeof(int)*3]; /* * Since Linux 3.19 unprivileged writing of /proc/self/gid_map @@ -348,9 +348,9 @@ int unshare_main(int argc UNUSED_PARAM, char **argv) * in that user namespace. */ xopen_xwrite_close(PATH_PROC_SETGROUPS, "deny"); - sprintf(uidmap_buf, "%u 0 1", (unsigned)reuid); + sprintf(uidmap_buf, "0 %u 1", (unsigned)reuid); xopen_xwrite_close(PATH_PROC_UIDMAP, uidmap_buf); - sprintf(uidmap_buf, "%u 0 1", (unsigned)regid); + sprintf(uidmap_buf, "0 %u 1", (unsigned)regid); xopen_xwrite_close(PATH_PROC_GIDMAP, uidmap_buf); } else if (setgrp_str) { |