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| author |   Mike Gilbert <floppym@gentoo.org> | 2024-01-08 14:59:35 -0500 |
|---|---|---|
| committer | Mike Gilbert <floppym@gentoo.org> | 2024-01-08 15:04:09 -0500 |
| commit | ef9208bea4e0f0dff5abf358002565f36e4d7a8d (patch) | |
| tree | 1659b3aac87b4f0d87f4cd80c4e4befd3c061889 /libsandbox | |
| parent | src: fix -Wold-style-declaration (diff) | |
| download | sandbox-ef9208bea4e0f0dff5abf358002565f36e4d7a8d.tar.gz sandbox-ef9208bea4e0f0dff5abf358002565f36e4d7a8d.tar.bz2 sandbox-ef9208bea4e0f0dff5abf358002565f36e4d7a8d.zip | |
libsandbox: stat the original path for EEXIST hackaround
Resolves an issue that can occur with paths that contain parent
directory references (/../).
If part of the path does not exist, the sandboxed program should get ENOENT,
not EEXIST. If we use the canonicalized path, intermediate paths will be
eliminated and we produce the wrong result.
Bug: https://bugs.gentoo.org/921581
Signed-off-by: Mike Gilbert <floppym@gentoo.org>
Diffstat (limited to 'libsandbox')
| -rw-r--r-- | libsandbox/pre_check_mkdirat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libsandbox/pre_check_mkdirat.c b/libsandbox/pre_check_mkdirat.c index b1e86cf..49c382a 100644 --- a/libsandbox/pre_check_mkdirat.c +++ b/libsandbox/pre_check_mkdirat.c @@ -37,7 +37,7 @@ bool sb_mkdirat_pre_check(const char *func, const char *pathname, int dirfd) * will trigger a sandbox violation. */ struct stat64 st; - if (0 == lstat64(canonic, &st)) { + if (0 == lstat64(pathname, &st)) { int new_errno; sb_debug_dyn("EARLY FAIL: %s(%s[%s]) @ lstat: %s\n", func, pathname, canonic, strerror(errno)); |