3.16.66-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: John Johansen <[email protected]> commit 34c426acb75cc21bdf84685e106db0c1a3565057 upstream. Commit 9f834ec18def ("binfmt_elf: switch to new creds when switching to new mm") changed when the creds are installed by the binfmt_elf handler. This affects which creds are used to mmap the executable into the address space. Which can have an affect on apparmor policy. Add a flag to apparmor at /sys/kernel/security/apparmor/features/domain/fix_binfmt_elf_mmap to make it possible to detect this semantic change so that the userspace tools and the regression test suite can correctly deal with the change. BugLink: http://bugs.launchpad.net/bugs/1630069 Signed-off-by: John Johansen <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> --- security/apparmor/apparmorfs.c | 1 + 1 file changed, 1 insertion(+) --- a/security/apparmor/apparmorfs.c +++ b/security/apparmor/apparmorfs.c @@ -794,6 +794,7 @@ static struct aa_fs_entry aa_fs_entry_do AA_FS_FILE_BOOLEAN("change_hatv", 1), AA_FS_FILE_BOOLEAN("change_onexec", 1), AA_FS_FILE_BOOLEAN("change_profile", 1), + AA_FS_FILE_BOOLEAN("fix_binfmt_elf_mmap", 1), { } };
