Commit 09497284 authored Feb 23, 2008 by Serge E. Hallyn Committed by Linus Torvalds Feb 23, 2008

file capabilities: simplify signal check



Simplify the uid equivalence check in cap_task_kill().  Anyone can kill a
process owned by the same uid.

Without this patch wireshark is reported to fail.

Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent e5df70ab

security/commoncap.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -552,7 +552,7 @@ int cap_task_kill(struct task_struct p, struct siginfo info,
		* allowed.
		* We must preserve legacy signal behavior in this case.
		*/
		if (p->euid == 0 && p->uid == current->uid)
		if (p->uid == current->uid)
		return 0;

		/* sigcont is permitted within same session */