Fix prlimit64 for suid/sgid processes

Since check_prlimit_permission always fails in the case of SUID/GUID processes, such processes are not able to read or set their own limits. This commit changes this by assuming that process can always read/change its own limits. Signed-off-by: Kacper Kornet <[email protected]> Acked-by: Jiri Slaby <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
kishon · Jan 31, 2011 · aa5bd67 · aa5bd67
1 parent 2f215a7
commit aa5bd67
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/kernel/sys.c b/kernel/sys.c
@@ -1385,7 +1385,8 @@ static int check_prlimit_permission(struct task_struct *task)
 	const struct cred *cred = current_cred(), *tcred;
 
 	tcred = __task_cred(task);
-	if ((cred->uid != tcred->euid ||
+	if (current != task &&
+	    (cred->uid != tcred->euid ||
 	     cred->uid != tcred->suid ||
 	     cred->uid != tcred->uid  ||
 	     cred->gid != tcred->egid ||