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| author | Etienne CHAMPETIER | 2016-05-29 23:39:12 +0000 |
|---|---|---|
| committer | John Crispin | 2016-06-01 08:27:34 +0000 |
| commit | 8e4fd3397dcdf79c0e0af9e12dc2bcf22d83d645 (patch) | |
| tree | c9ab3b469ef0209fd6d67d6b59989a025680276f | |
| parent | 9a6f83d3c168523ac7b898ae481c2fd8c501d6a6 (diff) | |
| download | procd-8e4fd3397dcdf79c0e0af9e12dc2bcf22d83d645.tar.gz | |
jail: call chdir(/) after pivot_root()
pivot_root(2) man page recommend calling chdir(/), so do it
Signed-off-by: Etienne CHAMPETIER <champetier.etienne@gmail.com>
| -rw-r--r-- | jail/jail.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/jail/jail.c b/jail/jail.c index 541363a..8157a8f 100644 --- a/jail/jail.c +++ b/jail/jail.c @@ -162,6 +162,10 @@ static int build_jail_fs(void) ERROR("pivot_root failed: %s\n", strerror(errno)); return -1; } + if (chdir("/")) { + ERROR("chdir(/) failed: %s\n", strerror(errno)); + return -1; + } snprintf(dirbuf, sizeof(dirbuf), "/old%s", jail_root); rmdir(dirbuf); |