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| author | Thomas Cedeno <thomascedeno@google.com> | 2020-06-09 10:22:13 -0700 |
|---|---|---|
| committer | Micah Morton <mortonm@chromium.org> | 2020-06-14 10:52:02 -0700 |
| commit | 39030e1351aa1aa7443bb2da24426573077c83da (patch) | |
| tree | f593d47dfb088f59bf3db1ce3be5ddc475af6218 /security | |
| parent | 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 (diff) | |
| download | linux-stable-39030e1351aa1aa7443bb2da24426573077c83da.tar.gz linux-stable-39030e1351aa1aa7443bb2da24426573077c83da.tar.bz2 linux-stable-39030e1351aa1aa7443bb2da24426573077c83da.zip | |
security: Add LSM hooks to set*gid syscalls
The SafeSetID LSM uses the security_task_fix_setuid hook to filter
set*uid() syscalls according to its configured security policy. In
preparation for adding analagous support in the LSM for set*gid()
syscalls, we add the requisite hook here. Tested by putting print
statements in the security_task_fix_setgid hook and seeing them get hit
during kernel boot.
Signed-off-by: Thomas Cedeno <thomascedeno@google.com>
Signed-off-by: Micah Morton <mortonm@chromium.org>
Diffstat (limited to 'security')
| -rw-r--r-- | security/security.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/security/security.c b/security/security.c index 51de970fbb1e..5d4ad6f3fc55 100644 --- a/security/security.c +++ b/security/security.c @@ -1685,6 +1685,12 @@ int security_task_fix_setuid(struct cred *new, const struct cred *old, return call_int_hook(task_fix_setuid, 0, new, old, flags); } +int security_task_fix_setgid(struct cred *new, const struct cred *old, + int flags) +{ + return call_int_hook(task_fix_setgid, 0, new, old, flags); +} + int security_task_setpgid(struct task_struct *p, pid_t pgid) { return call_int_hook(task_setpgid, 0, p, pgid); |