From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <sourceware-bugzilla@sourceware.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 90477385780B; Mon, 13 Sep 2021 10:46:27 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 90477385780B
From: "fweimer at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug nptl/19193] pthread_kill, pthread_cancel return ESRCH for a
 thread ID whose lifetime has not ended
Date: Mon, 13 Sep 2021 10:46:27 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: glibc
X-Bugzilla-Component: nptl
X-Bugzilla-Version: 2.23
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: fweimer at redhat dot com
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: fweimer at redhat dot com
X-Bugzilla-Target-Milestone: 2.35
X-Bugzilla-Flags: security-
X-Bugzilla-Changed-Fields: target_milestone bug_status resolution
Message-ID: <bug-19193-131-jRrLucOy65@http.sourceware.org/bugzilla/>
In-Reply-To: <bug-19193-131@http.sourceware.org/bugzilla/>
References: <bug-19193-131@http.sourceware.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: glibc-bugs@sourceware.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Glibc-bugs mailing list <glibc-bugs.sourceware.org>
List-Unsubscribe: <https://sourceware.org/mailman/options/glibc-bugs>,
 <mailto:glibc-bugs-request@sourceware.org?subject=unsubscribe>
List-Archive: <https://sourceware.org/pipermail/glibc-bugs/>
List-Help: <mailto:glibc-bugs-request@sourceware.org?subject=help>
List-Subscribe: <https://sourceware.org/mailman/listinfo/glibc-bugs>,
 <mailto:glibc-bugs-request@sourceware.org?subject=subscribe>
X-List-Received-Date: Mon, 13 Sep 2021 10:46:27 -0000

https://sourceware.org/bugzilla/show_bug.cgi?id=3D19193

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |2.35
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from Florian Weimer <fweimer at redhat dot com> ---
Fixed for 2.35 via:

commit 8af8456004edbab71f8903a60a3cae442cf6fe69
Author: Florian Weimer <fweimer@redhat.com>
Date:   Mon Sep 13 11:06:08 2021 +0200

    nptl: pthread_kill, pthread_cancel should not fail after exit (bug 1919=
3)

    This closes one remaining race condition related to bug 12889: if
    the thread already exited on the kernel side, returning ESRCH
    is not correct because that error is reserved for the thread IDs
    (pthread_t values) whose lifetime has ended.  In case of a
    kernel-side exit and a valid thread ID, no signal needs to be sent
    and cancellation does not have an effect, so just return 0.

    sysdeps/pthread/tst-kill4.c triggers undefined behavior and is
    removed with this commit.

    Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

--=20
You are receiving this mail because:
You are on the CC list for the bug.=