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Message-ID: <20080220161550.GA14630@sergelap.austin.ibm.com> Date: Wed, 20 Feb 2008 10:15:50 -0600 From: "Serge E. Hallyn" <serue@...ibm.com> To: lkml <linux-kernel@...r.kernel.org> Subject: [PATCH 1/1] file capabilities: simplify signal check >From bd076c7245d02be0cc01b7c09bd7170ec5946492 Mon Sep 17 00:00:00 2001 From: Serge E. Hallyn <serue@...ibm.com> Date: Sun, 17 Feb 2008 20:28:07 -0500 Subject: [PATCH 1/1] 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@...ibm.com> Signed-off-by: Andrew G. Morgan <morgan@...nel.org> --- security/commoncap.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/security/commoncap.c b/security/commoncap.c index 5aba826..bb0c095 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -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 */ -- 1.5.1.1.GIT -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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