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file capabilities: simplify signal check

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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>
This commit is contained in:
Serge E. Hallyn 2008-02-23 15:23:33 -08:00 committed by Linus Torvalds
parent e5df70ab19
commit 094972840f
1 changed files with 1 additions and 1 deletions
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security/commoncap.c
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@ -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 */