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Wed, 03 Apr 2019 20:22:45 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:ac8:3353:0:0:0:0:0 with HTTP; Wed, 3 Apr 2019 20:22:44 -0700 (PDT) In-Reply-To: References: <201904032037.x33KbEjq070604@repo.freebsd.org> From: Mateusz Guzik Message-ID: Subject: Re: svn commit: r345853 - head/usr.bin/rctl To: Enji Cooper Cc: src-committers , svn-src-all , svn-src-head@freebsd.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk X-Loop: FreeBSD.org Sender: owner-src-committers@freebsd.org X-Rspamd-Queue-Id: 30E0B82160 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-6.95 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.95)[-0.952,0]; REPLY(-4.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0] Status: O X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Date: Tue, 03 Sep 2019 14:06:33 -0000 X-Original-Date: Thu, 4 Apr 2019 05:22:44 +0200 X-List-Received-Date: Tue, 03 Sep 2019 14:06:33 -0000 On 4/4/19, Enji Cooper wrote: > >> On Apr 3, 2019, at 1:37 PM, Mateusz Guzik wrote: >> >> Author: mjg >> Date: Wed Apr 3 20:37:14 2019 >> New Revision: 345853 >> URL: https://svnweb.freebsd.org/changeset/base/345853 >> >> Log: >> rctl: fix sysctl kern.racct.enable use after r341182 >> >> The value was changed from int to bool. Since the new type >> is smaller, the rest of the variable in the caller was left >> unitialized. > > I hit a bug like this recently with capsicum-test. Do you think it makes > sense to purge all of the memory or return -1/set EINVAL for reasons similar > to this for newp? > > [EINVAL] A non-null newp is given and its specified length > in > newlen is too large or too small. > There is most likely code which always passed oversized bufs. This change would break it. -- Mateusz Guzik