From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id BA6EF3858439; Fri, 27 Aug 2021 04:30:39 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org BA6EF3858439 From: "infor at rudhar dot com" To: glibc-bugs@sourceware.org Subject: [Bug stdio/20632] Buffer overflow in wchar IO (_IO_wfile_overflow) Date: Fri, 27 Aug 2021 04:30:39 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: glibc X-Bugzilla-Component: stdio X-Bugzilla-Version: 2.23 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: infor at rudhar dot com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: 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 List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Aug 2021 04:30:39 -0000 https://sourceware.org/bugzilla/show_bug.cgi?id=3D20632 Ruud Harmsen changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |infor at rudhar dot com --- Comment #2 from Ruud Harmsen --- It crashes for me (with glibc 2.31) even if I comment out the line with the malloc. It crashes already at one of the short writes. Is it legal at all, to write to a stream of which you have close(2)'d the fileno? Why would anyone do that? --=20 You are receiving this mail because: You are on the CC list for the bug.=