iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

LSM: SafeSetID: fix userns bug in selftest

Browse Source 
Not sure how this bug got in here but its been there since the original
merge. I think I tested the code on a system that wouldn't let me
clone() with CLONE_NEWUSER flag set so had to comment out these
test_userns invocations.

Trying to map UID 0 inside the userns to UID 0 outside will never work,
even with CAP_SETUID. The code is supposed to test whether we can map
UID 0 in the userns to the UID of the parent process (the one with
CAP_SETUID that is writing the /proc/[pid]/uid_map file).

Signed-off-by: Micah Morton <mortonm@chromium.org>
This commit is contained in:
Micah Morton 2022-06-15 21:19:06 +00:00
parent 32346491dd
commit 92c005a117
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/testing/selftests/safesetid/safesetid-test.c
View File

@ -194,7 +194,7 @@ static bool test_userns(bool expect_success)
printf("preparing file name string failed");
return false;
}
success = write_file(map_file_name, "0 0 1", uid);
success = write_file(map_file_name, "0 %d 1", uid);
return success == expect_success;
}