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Wed, 16 Sep 2020 12:22:46 -0400 (EDT) Date: Wed, 16 Sep 2020 12:22:44 -0400 From: Leo Famulari Message-ID: <20200916162244.GA3262@jasmine.lan> References: <20200911195058.6dc013b4@scratchpost.org> <877dsw7alf.fsf@gnu.org> <20200914183037.624cc347@scratchpost.org> <87y2laactz.fsf@netris.org> <20200915230628.GA20807@jasmine.lan> <20200916141231.GA28015@jasmine.lan> <20200916165245.421e3c4c@scratchpost.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="/04w6evG8XlLl3ft" Content-Disposition: inline In-Reply-To: <20200916165245.421e3c4c@scratchpost.org> X-Spam-Score: -0.7 (/) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-Spam-Score: -1.7 (-) X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mathieu Othacehe , 43344@debbugs.gnu.org Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=fail (rsa verify failed) header.d=famulari.name header.s=mesmtp header.b=Fkund70x; dkim=fail (rsa verify failed) header.d=messagingengine.com header.s=fm3 header.b=KHwqAOtP; dmarc=none; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Spam-Score: -2.11 X-TUID: EHg+YVDjLlya --/04w6evG8XlLl3ft Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Sep 16, 2020 at 04:52:45PM +0200, Danny Milosavljevic wrote: > commit 692d0626557451c4b557397f20b7394b612d0289 > Author: Christoph Hellwig > Date: Tue Sep 1 11:59:41 2020 +0200 >=20 > block: fix locking in bdev_del_partition > =20 > [ Upstream commit 08fc1ab6d748ab1a690fd483f41e2938984ce353 ] > =20 > We need to hold the whole device bd_mutex to protect against > other thread concurrently deleting out partition before we get > to it, and thus causing a use after free. > =20 > Fixes: cddae808aeb7 ("block: pass a hd_struct to delete_partition") > Reported-by: syzbot+6448f3c229bc52b82f69@syzkaller.appspotmail.com > Signed-off-by: Christoph Hellwig > Signed-off-by: Jens Axboe > Signed-off-by: Sasha Levin >=20 > ? Do you think that's the faulty commit? I won't have time to test it today. --/04w6evG8XlLl3ft Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEsFFZSPHn08G5gDigJkb6MLrKfwgFAl9iO9EACgkQJkb6MLrK fwigzBAAv6mIgPP/G4Za8VaSYfjcXOThVEY58LgP/fdoC54rp6ip1vs3b0wW86TP +PB+kmxmgYOPR8G4jsVIPWo/oPq7fQ22P5soNI4AeEPiRiITLUkS+EEys8YSUESP kLB29RVF3rFb5i79E5px9o/JYkeBPxULug0VGhNWLBQkM3vjrra/PVcDzkHA2TMA EYAVN0oDhaAJ3AuTv66pyuoBg4t8nARxuX4q/KZ+4QuP2q0GcJNOPy+IIY94CacS /nqZ46aK0qaQ1FTEjRQyleSq8cFpT37k3oqUP6jUXuvU7HO5v1pqQ+egVCqSp3nv xU4r5jnsOgMmLkYj4nCmaZVp00VmcsGU6XO9hcKEYOpRORNZIJtcDzr+zIB3mbhZ oY9MelcqJ+Vj12sIVR4L5vcAvhysrZwiRggqezYNiwY9ZQ/4UUnddk1JH+qcJkRV nr/SlDTdUHj6S1eyao/Ov2thamWiRKC2rzriUGIpVaeFIhQ2yHnjUkpLZazVOhXk RDoIDIWfqJh8v2xRH3jA0wzqFiK+hnpa9L5Zed/RESsrLjHi//hbVJFht3t9xZhV 4O0R1jNzXgFa/fxF20s+oHVgrIKs77jiz5vlBJDfJCsEDb8r9tLFPIa6bwbqajVK I3cllFFmqB004mXiJC3Cy0Fv26a1/s5C4C8mYFd6NnDlvzfW7sQ= =2iEr -----END PGP SIGNATURE----- --/04w6evG8XlLl3ft--